Cat engine parts19

Description

Replacement Parts for Caterpillar® Engines

CAT DIESEL ENGINE PARTS LIST
CAT 3406, CAT3408, CAT 3412, CAT 3508, CAT 3512, CAT 3516

Caterpillar3408/18.0L 8 Cylinder 
Diesel 1099 CID(Continued) Bore 5.400 Stroke 6.000 
8 1082104-FPlunger and barrel3400B & C Dl engines 
8 7N9843Capsule nozzlePC Engines (repl 4N1251) 
8 9L6884Injector nozzleDl, Small capsule style nozzle 
8 8M4437-FOring nozzle adapterFar fuel line adapter through head
28V1 – 28V4773
8 5P8119Oring nozzle adapterFor fuel line adapter through head
28V4774 & Up
8 3T8705Glow plug12 volt  
INJ4FUEL PUMP   
1 4W0788-FFuel priming pump   
hand pump, use witn i mounting gasket
1 1P0436-FGasket priming pumpTo mount 4W0788 pump 
1 6J2419Oring fuel pumpTransfer pump mounting; to mount 4W5481
1 1W4797-FDiaphramAir/fuel ratio control, 92U serial numbers
1 6L5766Gasket air fuel control92U serial numbers 
COOLING SYSTEM 
1 4N7498Water pump   
1 1293068Water pump kitBall bearing style pump (Does nat contain seals or impeller; replaces 9N6289)
1 4W3864-FWater pump sealAssembly, 1.350 case diameter (Replaces 7E6844,1010700, 1067150)
1 1012749Backing plate   
1 8C3100-FSeal water pumpTeflon lip seal [repl 8T1361] 
2 4W4794ThermostatUsed with 7W8066 water lines group only, 180 degree [new# 2477133]
2 7C3095Thermostat190 degrees [new# 2477133] 
2 3S9643-FSeal thermostatUse with 6I4954 and 4W4794 thermostats
2 4N1156-FGasket thermostatCover  
TURBO I AIR 
TURBOTURBOCHARGERNew or remanufactured available, call for pricing
4 2N2765Bolt turbo mountinghigh head, high temp, stainless steel
4 8M2295Bolt turbo mountingstandard head, high temp, stainless steel
4 2N2766Nut turbo mountingTurbo mounting and Exhaust manifold [new# 1687800]
1 1S4295-FGasket turbo mtgDual throat, turbo to exhaust manifold, 5.33 length x 3.6 width
1 7M7273-FGasket turbo mtgSingle throat, turbo to exhaust manifold
1 1S6595-FGasket turbo oilSupply  
1 1S4810-FGasket turbo oilDrain  
4S6137Stud manifold exhaust3/8H x 3.2″  
7L0520Stud manifold exhaust3/8″ x 2″  
6L8562Stud manifold exhaust3/8″ x 1-3/4′  
2S3770Spacer manifold exhaust 1-5/16″ long  
5M2894Washer manifold exhaus hardened, for 3/8″ studs (22132″ x 13/32″ x .1Q9″ thick)
BLOCK 
2 614613-BSpacer plateSteel  
614361Insert counterbore.0304 thick  
9Y3368Insert counterbore.0324 thick  
6I4362Insert counterbore.0343 thick  
2W3815Insert counterbore.0625 thick  
614364Insert counterbore.0652 thick  
614365Insert counterbore.1047 thick  
5N0093Insert counterbore.1067 thick  
614366Insert counterbore.1087 thick  
1010523Insert counterbore.2051 thick  
1010524Insert counterbore■2031 thick  
1010525Insert counterbore.2071 thick  

 

Caterpillar

Diesel 1099 CID

3408/18.0L

(Continued)

 8 Cylinder Bore 5.400 Stroke 6.000 
4W6061Repair sleeveLower liner oring receiver bore area
4W4588Repair sleeveLifter bore  

 

Caterpillar G3408/18.0L8 Cylinder 
GasBore 5.400 
1099 CID, Natural GasStroke 6.000 

CYLINDER KIT

8PLG7E3888Cylinder kit10.0:1 CR
8PLG4P8996Cylinder kitGallery Cooled 9.7:1 CR
12PLG1607994Cylinder kit8.5:1 CR
 PLG7E3888CSWSCylinder kitWith Crevice Style Liner
 PLG4P8996CSWSCylinder kitWith Crevice Style Liner
12PLG1607994/CSCylinder kit8.5:1 CR, With Crevice Style Liner
 
87E3888Piston body10.0:1 Compression Ratio
84P8996Piston bodyGallery Coaled 9.7 :1 C.R.
121607994Piston body8.5: 1 C.R.
88N1608Piston pin2.QQQ dia, 4.4Q5 length; Use with D1 piston (wide taper rod)
167E5665Retainer piston pinUse with 2.QQQ pin diameter [repl 8N7295]
87E3888SIRing setFor use only with 7E3888 piston
8G3400RSRing setFor 4P8996 Gallery Cooled Piston Only
 
82W6000Cylinder liner kit5.4QQQ bore (uses 1183732 oring kit) [New# 1979322]
 2W6000CSWSCylinder liner5.4DDD bore, Lower crevice seal liner
81183732Cylinder liner oring kitFor one liner, contains: (3) 1102220, (1) 9L5854
81183732CSCylinder liner oring kitFor one liner, for lower crevice seal liner

BEARINGS

5 2170390Bearing main pair 
4W5492-010Bearing main pair.010,1.645 length, 4.7492/4.7508 std journal
4W5698Bearing main pair.Q25# 1.645 length, 4.7492/4.7508 std journal [repl 6N4168, 7N1192,8N5422]
4W5699Bearing main pair.050# 1.645 length, 4.7492/4.7508 std journal [repl 6N4170, 7N1194,8N5423]
 
2 7E9262Thrust washer2 per engine, 0.228 thick, no centering tab
 
8 9Y9497GBearing rod pairStd, Grooved, 1.5350 length, 3.8189/3.8197 journal
9Y9497G-010Bearing rod pair.010H
4W5702GBearing rod pair.025# Grooved, 1.5350 length, 3.8189/3.8197 std journal
4W5703Bearing rod pair■050M
 
8 9Y7735GBearing rod pairStd, Grooved, 1.9300 length, 3.5425/3.5441 journal
4FD306-Up, 1RK1-Up
7E0558Bearing rod pair.025,1.9300 length, 3.5425/3.5441 std journal
7E0559Bearing rod pair.050,1.930Q length, 3.5425/3.5441 std journal
 
3 4N0685Bearing camPosition 2-7
2 4N6658Bearing camFront, position 1
 
8 8N0705Bushing con rod2.00 pin, straight
8 8N0706Bushing con rod2.DD pin, taper 6 degree
8 8N2018Bushing con rodWide taper rod, 1.9845 ID# 2.1825 0D, 1.875 0AL (can use 4P8495)
8 4P8495Bushing con rod2.00 pin, taper 9 degree, with relief

GASKET & SEALS

1 408261Set overhaulTurbo Aftercaoled
1 408263Set cylinder headMultiple
 
8 5P5678Gasket valve coverOrder by the Meter

 

Caterpillar G3408/18.0L8 Cylinder 
Gas (Continued)Bore 5.400 
1099 CID, Natural GasStroke 6.000 

1      5P5678-08                Gasket valve cover

Both valve covers

 
11425868Seal crankshaft rear[rep( 2W1734]
11425867Seal crankshaft front[repl 2W1733]
 
14N1151Gasket oil pan 
163E6772Seal waterThrough spacer plate 14W1055)

ALVE TRAIN

 CYLHEADNOTEFor complete and bare cylinder heads – Refer to Cylinder Head Catalog or Call with casting
 
G3400HEAD1
esn 6NB, 6FW, 6YRf 3WR: Thin head
161227353Valve intakeIntake, 20 degree
161018314Valve exhaust20 Degree, 7.14 length
324N5906Valve spring2.525 free, 1.25Q 0D# 0.866 ID, 0.192 wire; single spring engines, use with 6N7175 rotator
161511330Valve guideintake
161511329Valve guideExhaust
642A4429Valve lock0.372 stem dia, 2G, 7 degree
326N7175Rotatorwith shield, single spring engines
326N7174Rotator shielduse with 6N7175 and 1W5300, do not use with 4W2474
161227352Valve insertIntake, 20 degree; use with 1227353
161986529Valve insert20 degree
Exhaust
 
G3400HEAD2
esn 4FD343-Up and 1RK1-Up
162120932Valve intake20 degree, 7.62Q1 length
esn 6NB, 6FW, 6YR, 3WR; Thick head
162120933Valve exhaust20 degree, 7.62Q1 length
324N5906Valve spring2.525 free, 1.25Q 0Df 0.866 ID, 0.192 wire; single spring engines, use with 6N7175 rotator
162137536Valve guideintake
162137537Valve guideExhaust
642A4429Valve lock0.372 stem dia, 2G, 7 degree
326N7154RotocoilNo shield
161227352Valve insertIntake, 20 degree; use with 1227353
161986529Valve insert20 degree
Exhaust
 
163B0623Plug 
123B0645Plug cup 

 

Caterpillar G3408/18.0L8 Cylinder 
Gas (Continued)Bore 5.400 
1099 CID, Natural GasStroke 6.000 
8 7W3860Spark plug adapter  
8 2N7174Gasket spark plug adpMetal gasket 
8 2S2251Seal spark plug adp  
CRANKSHAFT  
1 1W5009Crankshaft  
COOLING SYSTEM  
2 4W4794ThermostatUsed with 7W8066 water lines group only, 18Q degree [new# 2477133] 
2 7C3095Thermostat190 degrees [new# 2477133] 
2 3S9643Thermostat seal  
  
1 6V2543Set water pump  
With Correct Serial & Arrangement # 
1 1049636Set water pump  
With Correct Serial & Arrangement # 
1 2177884Set water pump  
With Correct Serial & Arrangement # 
  
1 1293068Water pump kitBall bearing style pump (Does not contain seals or impeller; replaces 9N6289) 
With Correct Serial & Arrangement # 
1 1293069Kit water pump rebuild  
With Correct Serial & Arrangement # 
  
1 7C1067Impeller  
1 1010700Seal group water pump  
1 4W3864Seal group water pumpBasic 
1 8C3100Seal water pumpWater pump oil 
1 7W1821Shaft water pump  
1 7C1652Adapter inlet  
1 2L5271Bearing water pumpWater pump drive gear 
1 1B3867Bearing water pumpWater pump drive gear 
1 1087930Bearing water pumpWater pump drive gear, roller type 
BLOCK  
9Y3368Insert counterbore.0324 thick 
2W3815Insert counterbore.0625 thick 
5N0093Insert counterbore.1067 thick
Caterpillar 3412/27.0L12 Cylinder 
DieselBore 5.400 
1649 CIDStroke 6.000 

 

CYLINDER KIT

12PLG6N4126Cylinder kit2.QQQ pinr PC engines, straight and wide taper rodf 460 hp [6N4126 piston, 8N0822 rings, 7N9807 pinr 7E5655 retainers, 2W6000 liner]
12PLG7N3633Cylinder kit2.QQQ pinr PC, Narrow taper rodr 14.5:1 CR, 400 hp [7N3G33 piston, 8NQ822 rings, 7N98Q7 pin, 7E56G! retainers, 2W6000 liner]
12PLG6N4080Cylinder kit2.QQQ pinr U\, straight rad [6N4080 piston, 8NQ822 rings, 7N98Q6 pinf 7E5655 retainers, 2W600Q liner]
12PLG6N4785Cylinder kit2.000 pinr Dl, Straight rod [6N4785 piston, 8N0822 rings, 7N9806 pinr 7E5665 retainers, 2W6000 liner]
12PLG7N3509Cylinder kit2.000 pinr Dlr Narrow taper rod, 15.2:1 CRr Under 350 hp [7N3509 pistan, 8N0822 rings, 7N9806 pinf 7E5665 retainers, 2W6000 liner]
12PLG7N3511Cylinder kit2.000 pinr DL Narrow taper rod [7N3511 piston, 8N0822 rings, 7N980G pinf 7E5665 retainers, 2WG000 liner]
12PLG9Y4004Cylinder kit2.QQQ pinr U\, wide taper rodf 14.5:1 CR [9Y4004 pistonr 1W8922 rinsr 8N1608 pin, 7E5665 retainers, 2W6000 liner]
12PLG9Y9889Cylinder kit2.000 pin, Dl, wide taper rod, 15.2:1 CR, 350 ■ 425 hp [9Y9889 pist加,1W8922 rings, 8N1 的8 pin, 7E5665 retainers, 2W6000 liner]
12PLG9Y7212Cylinder kit2.QQQ pinr U\, wide taper rodf 15.6:1 CRrupta310hp [9Y7212 piston, 1W8922ringsr 8N1608 pin, 7E5665 retainers, 2W6000 liner]
12LK1723280-FCylinder kit15.5:1 CRr gallery cooled
 
126N4126Piston body2.00 pin, PC
127N3633Piston body2.00 pin, PC, 14.5:1
126N4080-FPiston5.4QQQ diar 2.QQQ pinf Dl, straight radr dual nir 1/8k ring; use with ring set 8N0822
126N4785-BPiston body2.00 pin, Dl
127N3509Piston body2.00 pinr DIJ 5.2:1
127N3511-FPiston body5.4000 diar Dlr 2.000 pin, narrow taper rod, dual nir 1/8k ring; use with 8NQ822 ring set
129Y4004Piston body2.QQ pinr DIJ4.5:1 [repl 1W9372]
129Y9889Piston body2.QQ pinr DU 5.2:1 [repl7C3406]
129Y7212Piston body2.00 pinr DL15.6:1 [repl 2W0865]
 
121723280-FPiston body5.4QQQ diar 15.5:1 CR; gallery coaledr high output engines, oil coaled, aluminum
121300241Piston skirtUsed with crowns: 1352837, 1495566, 7C2888
 
128N0822Ring set1/8 keystone top ring [8NQ5Q2 topr 2P2817 midr 7N7078 oil] 1 cyl set
12涵922Ring set5/32 keystone top ring [1W9460 top, 2P2817 midf 7N7078 oil] 1 cyl set
 
127N9807Piston pin2.QQQ diar 3.966 length; Use with PC piston: 6N4126f 7N3633
127N9806Piston pin2.000 diar 4.525 length {straight and narrow taper rod)
128N1608Piston pin2.QQQ diar 4.405 length; Use with Dl piston (wide taper rad)
121687246Piston pin2.165 dia[repl 7E1749f 1029796]
121687246Piston pin2.165 dia[repl 7E1749f 1029796]
 
247E5665Retainer piston pinUse with 2.QQQ pin diameter [repl 8N7295]
247E1177Retainer piston pinUse with 2.165 pin diameter
 
122W6000Cylinder liner kit5.4QQQ bore (uses 1183732 oring kit) [New# 1979322]
122W6000CSWSCylinder liner5.4000 bore. Lower crevice seal liner
121183732Cylinder liner oring kitFor one liner, contains:⑶ 1102220, (1} 9L5854
121183732CSCylinder liner oring kitFor one liner, for lower crevice seal liner
129L5854Cylinder liner oring11 卯er b如d s抽1,1 per liner
361102220Cylinder liner oringLower oring seal, 3 per liner

 

BEARINGS

7 2170390Bearing main pair 
7 4W5492-010Bearing main pair.Q1Qf 1.645 length, 4.7492/4.7508 std journal

 

Caterpillar 3412/27.0L12 Cylinder 
Diesel (Continued)Bore 5.400 
1649 CIDStroke 6.000 
74W5698Bearing main pair.025# 1.645 length, 4.7492/4.7508 std journal [repl 6N4168, 7N1192,8N5422] 
74W5699Bearing main pair.050# 1.645 length, 4.7492/4.7508 std journal [repl 6N4170, 7N1194,8N5423] 
  
74W5700-FBearing main pairOversize 0D: .025 〇D, Std ID; 1.645 length 
74W5701Bearing main pairOversize 0D: .025 0D, .025 ID; 1.645 length [check for availability] 
  
27E9262Thrust washer2 per engine, 0.228 thick, no centering tab 
  
129Y9497GBearing rod pairStd, Grooved, 1.5350 length, 3.8189/3.8197 journal 
129Y9497G-010Bearing rod pair.010, Grooved, 1.535D length, 3.8189/3.8197 std journal 
124W5702GBearing rod pair.Q25# Grooved, 1.5350 length, 3.8189/3.8197 std journal 
  
129Y9497Bearing rod pairStd, 1.5350 length, 3.8189/3.8197 journal [repl 2170586, 1W7524,6N3908, 6N7436, 8N5426] 
129Y9497 10-FBearing rod pair.010# 1.5350 length, 3.8189/3.8197 std journal 
124W5702-FBearing rod pair■025,1.5350 length, 3.8189/3.8197 std journal [repl 6N4166,8N5427] 
124W5703GBearing rod pair.Q5Q# 1.5350 length, 3.8189/3.8197 std journal, grooved [repl 6N4167r 8N5428] 
  
129Y7735GBearing rod pairStd, Grooved, 1.9300 length, 3.5425/3.5441 journal 
  
129Y7735Bearing rod pairStd, 1.9300 length, 3.5425/3.5441 journal 
127E0558Bearing rod pair.Q25# 1.9300 length, 3.5425/3.5441 std journal 
127E0559Bearing rod pair.Q5Q# 1.9300 length, 3.5425/3.5441 std journal 
  
24N6658-FBearing camFront, position 1 
54N0685-FBearing camPosition 2-7 
 1345251Bearing camNew part# 216-5582 [replaces 4P5Q53] 
  
128N0705Bushing con rod2.00 pin, straight 
128N0706Bushing con rod2.QQ pin, taper 6 degree 
128N2018Bushing con rodWide taper rad, 1.9845 ID# 2.1825 0Df 1.875 OAL (can use 4P8495) 
124P8495Bushing con rod2.00 pin, taper 9 degree, with relief 
126I2726Bushing con rodWide taper rod, 2.160 ID 
GASKET & SEALS  
 CATGASKETNOTEFor gasket sets: Call with Serial and Arrangement Numbers 
CAMSHAFT  
 CAMSHAFTCAMSHAFTRemanufactured available, call with casting number 
241017788Cam followerroller type, replaces 9Y4011 
244W3817Pin and rollerused to service 1017788 lifter 
VALVE TRAIN  
 CYLHEADNOTEFar complete and bare cylinder heads – Refer to Cylinder Head Catalog or Call with casting 
241152367-FValve exhaust1.646 head dia, 7.132 length, 2G [repl: 1061111,1W3860] 
241220321Valve exhaust1.646 head dia, 7.250 length, 2G 
C series engines 
241537024Valve exhaust1.646 head dia, 7.953 length, 2G 
E series engines 
241152368-FValve intake1.771 head dia, 7.140 0ALf 2G [repl: 1085902, 2W2622] 
241220322Valve intake1.771 head dia, 7.250 OAL, 2G 
C series engines 
241537023Valve intake1.85Q head dia, 7.951 0AL.2G 
E series engines 
964P4661-FValve lockSingle groove: use 2M429 lock, 1862001 rot, 1757523/1757526 springs, 1537023/1537024 valves 
962A4429Valve lock0.372 stem dia, 2G, 7 degree 

 

Caterpillar3412/27.0L 12 Cylinder 
Diesel(Continued) Bore 5.400 
1649 CID  Stroke 6.000 
48 4N2803Valve guide0.3750 ID, 0.6890 0D, 3.250 length, plain; Std dia, intake and exhaust [new# 1737188]
48 1737188/002Valve guide.002 oversize  
48 7C0363-FValve guide.DD5 oversize  
48 7C5306-FValve guide.020 oversize  
48 1227374Valve guide0.374Q ID, 0.6890 0D, 3.050 length
C series engines
48 1227375Valve guide0.3745 ID, 0.6298 OD, 3.358 length
E series engines
48 4N5906Valve spring2.525 free, 1.25Q 0D, 0.866 ID, 0.192 wire; single spring engines, use with 6N7175 rotator
48 4W2471Valve spring2.341 free, 1.469 0Df 1.069 ID, 0.200 wife; outer, dual valve spring
B & C series engines
48 4W2472Valve spring2.678 free, 0.989 0D, 0.739 ID, 0.125 wire; inner, dual valve spring
B & C series engines
48 1027665Valve springsingle spring: use 2A4429 lock, 1862001 rot, 1757523/1757526 springs, 1537023/1537024 valves
48 1757526Valve spring3.285 free, 1.429 0Df 1.075 ID, 0.177 wire; outer, dual valve spring
E series engines
48 2113122Valve spring2.885 free, 0.992 0Df 0.740 ID, 0.127 wire; inner, dual valve spring [replaces 1757523]
E series engines
48 6N7175Rotatorwith shield, single spring engines 
48 6N7174Rotator shielduse with 6N7175 and 1W53QQ, do not use with 4W2474
48 4W2474Rotatoruse with dual valve springs 
B & C series engines
48 1862001Rotatoruse with dual spring engines 
E series engines
24 4N5893Valve insertIntake, I PD standard size 1.817″
24 391921Valve insertIntake, .005 over 
24 391922Valve insertintake, .010 over 
24 391923Valve insertintake, .020 over 
24 SB1812E-7Valve insertIntake, late style with swirl plate
B series engines
24 SB1 的 1E.1Valve insertintake [1564168,1753617 
E series engines
24 1W5283Valve insertExhaust, IPD standard size 1.692″
24 4S8902-FValve insertExhaust, .QQ5 oversize 
24 4S8903Valve insertExhaust, .01Q over IPD standard 
12 1080219-BInjector sleeveFor HEUI injectors 
3412E sn: 80M, 9KS, 9PW
12 10802190RK-B Seal kitFor 1Q8Q219 sleeve 
CRANKSHAFT 
1 1678130-BVibration damper   
FUEL I INJECTOR 
12 1895390-BInjector seal kitHEUI: External, for 1 injector, contains:9X7419 oring upper, 9X7418 oring center, 9X7317 oring lower
For HEUi Injectors
12 7N9843Capsule nozzlePC Engines (repl 4N1251) 
12 9L6884Injector nozzleDlf Small capsule style nozzle 
Tm^OIAIR 
TURBOTURBOCHARGERNew or remanufactured available, call for pricing
BLOCK 
2 614611-BSpacer plateSteel  
614361Insert counterbore.0304 thick  
9Y3368Insert counterbore.0324 thick  
6I4362Insert counterbore.0343 thick  

 

Caterpillar 3412/27.0L12 Cylinder 
Diesel (Continued)Bore 5.400 
1649 CIDStroke 6.000 
2W3815Insert counterbore.0625 thick 
614364Insert counterbore.0652 thick 
614365Insert counterbore.1047 thick 
5N0093Insert counterbore.1067 thick 
614366Insert counterbore.1087 thick 
1010523Insert counterbore.2051 thick 
1010524Insert counterbore.2031 thick 
1010525Insert counterbore.2071 thick 
4W6061Repair sleeveLower liner oring receiver bore area 
4W4588Repair sleeveLifter bore
Caterpillar G3412/27.0L12 Cylinder 
GasBore 5.400 
1649 CID, Natural GasStroke 6.000 

 

CYLINDER KIT

12PLG7E3888Cylinder kit10.0:1 CR
12PLG4P8996Cylinder kitGallery Cooled 9.7:1 CR
12PLG1607994Cylinder kit8.5:1 CR
12PLG7E3888/CSCylinder kit10.0:1 C.R., with Crevice Style Liner
12PLG4P8996/CSCylinder kitGallery Cooled 9.7:1 CRf With Crevice Style Liner
12PLG1607994/CSCylinder kit8.5:1 CRr With Crevice Style Liner
 
127E3888Piston body10.0:1 Compression Ratio
124P8996Piston bodyGallery Cooled 9.7 :1 C.R.
121607994Piston body8.5:1 C.R.
128N1608Piston pin2.QQQ diar 4.405 length; Use with Dl piston (wide taper rod)
247E5665Retainer piston pinUse with 2.QQQ pin diameter [repl 8N7295]
 
127E38888SIRing setFor use only with 7E3888 piston
12G3400RSRing setFor 4P8996 Gallery Cooled Piston Only
 
122W6000Cylinder liner kit5.4000 bore {uses 1183732 oring kit) [New# 1979322]
122W6000CSWSCylinder liner5.4QQQ bore. Lower crevice seal liner
121183732Cylinder liner oring kitFor one liner, contains:⑶ 1102220,⑴ 9L5854
121183732CSCylinder liner oring kitFor one liner, for lower crevice seal liner

 

BEARINGS

72170390Bearing main pair 
 4W5492-010Bearing main pair.Q1Qf 1.645 length, 4.7492/4.7508 std journal
 4W5698Bearing main pair.025,1.645 length, 4.7492/4.7508 std journal [r 印16N4168,7N1192,8N5422]
 4W5699Bearing main pair.050f 1.645 length, 4.7492/4.7508 std journal [repl 6N417Qr 7N1194r 8N5423]
 
129Y9497GBearing rod pairStdr Grooved, 1.5350 length, 3.8189/3.8197 journal
 9Y9497G-010Bearing rod pair■010″
 4W5702GBearing rod pair.Q25f Grooved, 1.535Q length, 3.8189/3.8197 std journal
 4W5703Bearing rod pair.050″
 
129Y7735GBearing rod pairStdr Grooved, 1.9300 length, 3.5425/3.5441 journal
 7E0558Bearing rod pair.Q25f 1.9300 length, 3.5425/3.5441 std journal
 7E0559Bearing rod pair.050,1.9300 length, 3.5425/3.5441 std journal
 
27E9262Thrust washer2 per gngi 油,0.228 thick,加邙ntering tdb
 
54N0685Bearing camPosition 2-7
24N6658Bearing camFront, position 1
 
128N0705Bushing con rod2.00 pin, straight
128N0706Bushing con rod2.QQ pinr taper 6 degree
128N2018Bushing con rodWide taper radr 1.9845 IDf 2.1825 0Dr 1.875 0AL (can use 4P8495)
124P8495Bushing con rod2.00 pinr taper 9 degree, with relief

 

GASKET & SEALS

1412091Set overhaul7DB1-Upr Non Turbo
1412111Set overhaul7DB1 -Upr Turbo Afteroooled
 
1412093Set cylinder head7DB1 -Up, Non Turbo, multiple
1412113Set cylinder head7DB1 -Upr Turbo Aftercooled, multiple

 

Caterpillar G3412/27.0L 12 Cylinder 
Gas (Continued) Bore 5.400 
1649 CID, Natural Gas  Stroke 6.000 
412114Set cylinder head7DB1-Up, single 
 
1 5P5678-13Gasket valve cover   
Both valve covers
1 5P5678-07Gasket valve cover   
One valve cover
 
1 1425868Seal crankshaft rear[rep( 2W1734] 
1 1425867Seal crankshaft front[repl 2W1733] 
 
1 4N1151Gasket oil pan   
1 4N1151-12Gasket oil pan1-piece  
24 3E6772Seal waterThrough spacer plate I4W1055) 
CAMSHAFT 
1 2W5289Camshaft   
With Correct Serial Number
1 4P6896Camshaft   
With Correct Serial Number
1 4P7694Camshaft   
With Correct Serial Number
24 1055139Lifter   
1055139RKLifter repair kitRoller and pin set 
VALVE TRAIN 
CYLHEADNOTEFar complete and bare cylinder heads – Refer to Cylinder Head Catalog or Call with casting
 
G3400HEAD1
esn 7DB, 3NK, 62M, 8LW
24 4W5374Valve intake   
With correct serial number
24 1227353Valve intakeIntake, 20 degree 
24 2W2443Valve exhaust30 degree, 7.14″ length 
24 1018314Valve exhaust20 Degree, 7.14 length 
48 4N5906Valve spring2.525 free, 1.250 0Df 0.866 ID, 0.192 wire; single spring engines, use with 6M7175 rotator
24 1511330Valve guideintake  
With correct serial number
24 1511329Valve guideExhaust  
With correct serial number
96 2A4429Valve lock0.372 stem dia, 2G, 7 degree 
48 6N7175Rotatorwith shield, single spring engines 
48 6N7154RotocoilNo shield  
48 7N7174Shield   
24 4N5893Valve insertintake, IPD standard size 1.817′ 
24 1227352Valve insertIntake, 20 degree; use with 1227353
24 4W4325Valve insertExhaust, 30 degree 
24 1986529Valve insert20 degree  
Exhaust
12 7W3860Spark plug adapter   
With correct serial number
12 2127519Spark plug adapter   
With correct serial number
 

 

Caterpillar G3412/27.0L

Gas (Continued) 1649 CID, Natural Gas

12 Cylinder Bore 5.400 Stroke 6.000 
G3400HEAD2 
esn 7DB# 3NK, 6ZMf 8LW (Thick head) 
242120932 Valve intake20 degree, 7.6201 length  
242120933 Valve exhaust20 degree, 7.62Q1 length  
484N5906 Valve spring2.525 free, 1.25Q 0Df 0.866 ID, 0.192 wire; single spring engines, use with 6N7175 rotator 
242137536 Valve guideIntake   
242137537 Valve guideExhaust   
962A4429 Valve lock0.372 stem dia, 2G, 7 degree  
486N7154 RotocoilNo shield   
241227352 Valve insertIntake, 20 degree; use with 1227353 
241986529 Valve insert20 degree   
Exhaust 
122137539 Spark plug adapter    
  
243B0623 Plug    
203B0645 Plug cup    
122N7174 Gasket spark plug adpMetal gasket   
122S2251 Seal spark plug adp    
CRANKSHAFT   
11W6213 Crankshaft    
With Correct Serial Number 
11512941 Crankshaft    
With Correct Serial Number 
12W4088 Crankshaft    
With Correct Serial Number 
COOLING SYSTEM   
 3400WPUMP     
For gaskets and parts: Check correct Serial and Arrangement numbers  
24W4794 ThermostatUsed with 7W8066 water lines group only, 180 degree [new# 2477133] 
27C3095 Thermostat190 degrees [new# 2477133]  
23S9643 Thermostat seal    
  
16V2543 Set water pump    
11036192 Set water pump    
11052010 Set water pump    
12177884 Set water pump    
  
11293068 Water pump kitBall bearing style pump (Does not contain seals or impeller; replaces 9N6289) 
11293069 Kit water pump rebuild    
11386744 Kit water pump rebuild    
  
17C1068 Impeller    
14N5836 Impeller    
11067150 Seal group water pump    
14W3864 Seal group water pumpBasic   
11313815 Seal group water pump    
11280317 Seal group water pump    
11354928 Shaft water pump    
11333572 Shaft water pump    
11236666 Shaft water pump    
16N0139 Shaft water pump    
18C3100 Seal water pumpWater pump nil  

 

Caterpillar G3412/27.0L12 Cylinder 
Gas (Continued)Bore 5.400 
1649 CID, Natural GasStroke 6.000 
  
11012749Backing plate  
14N5835Adapter inlet  
17C1652Adapter inlet  
  
11087390Bearing water pumpRoller type 
11B3867Bearing water pumpWater pump drive gear 
12L5271Bearing water pumpWater pump drive gear 

BLOCK

9Y3368Insert counterbore.0324 thick
2W3815Insert counterbore.0625 thick
5N0093Insert counterbore.1067 thick
Caterpillar 3508/34.5L8 Cylinder 
DieselBore 6.700 
2105 CIDStroke 7.000 

 

CYLINDER KIT

8PLG7C2431/8206Cylinder kit6.7QQQ bore, small flange liner, Dl [7C2431 piston, RS3500D rings, 1388506 pin, 8N7296 retainer, 13238206 liner, 6V3774seal kit]
8PLG7C2431Cylinder kit6.7QQQ bore, large flange liner, Dl [7C2431 piston, RS35Q0D rings, 1388506 pinf 8N7296 retainer, 1106993/2117826 linerr 6V3774 seal kit]
8PLG9Y4124HD/82Cylinder kit6.7QQQ bore, small flange liner, Dl [9Y4124HD piston, RS350QD rings, 1388506 pin, 8N7296 retainer, 1238206 liner, 6V3774 seal kit]
8PLG9Y4124HDCylinder kit6.7000 bore, large flange liner, Dl [9Y4124HD piston, RS3500D rings, 1388506 pin, 8N7296 retainer, 1106993/2117826 linerr 6V3774 seal kit]
8PLG9Y2100HDCylinder kit6.7000 bore [9Y2100 piston, RS3500D rings, 1388506 pin, 8N7296 retainers]
 
87C2431Piston body6.7QQQ diar Dlr 13.0:1 CRf 1 piece cast aluminum piston [repl 4W7402]
89Y4124HDPiston body6.7000 diar Dlr 13.0:1 CR [repl 7W0552]
89Y2100HDPiston body6.7QQQ diar Dl; 13.5:1 CR
 
81388506Piston pin[repl 4W8484]
168N7296Retainer piston pin 
 
8RS3500DRing set6.7QQQ bore
 
81106993Cylinder liner6.7000 bore, small flange: 8.332 dia x Q.498 height [repl 1189494]
81238206Cylinder liner6.7QQQ bore, large flange: 8.150 dia x 0.498 height
86V3774Cylinder liner oring kitKit for 1 liner; Contains: (1) 8N47Q7r |3) 7N2046
88N4707Cylinder liner oringUpper filler band
247N2046Cylinder liner oringLower oring seal

 

BEARINGS

51050253Bearing main pairStdr 6.300 jaumal, 6.6836 housing borer 2.248 length [4W5704]
51050254Bearing main pair.025
51496033Bearing main pair.050 [repl 1050255]
 
27C6209Thrust washer 
 
81077330Bearing rod pairStdr 5.3160 jaurnaL 5.6316 housing borer 2.248 length [7E7997,1W7538]
81077331Bearing rod pair.025
81077332-BBearing rod pair.050
 
107N2048Bearing camEarly style
101011198-FBearing cam 
101161359Bearing cam 
 
81W9166-FBushing con roduse with rods: 1W43Q0f 1W48QQ, 8N6Q20
81181655-FBushing con roduse with rods: 144Q725f 1612500

 

GASKET & SEALS

CATGASKETNOTEFor gasket sets: Call with Serial and Arrangement Numbers
8 2748567Gasket cylinder head[replaces 1106991]
8 1345958Oring valve cover[repl 4W1596]
2067030Seal valve coverFits ukH Series with Mill & Natural Gas applications; ribbed style seal
2082364Seal valve coverFits uk” Series with EUI & B Series; ribbed style seal
8 2W2073Oring block coverBlack side caver aring
2082363Seal side coverribbed style seal
2082362Seal camshaft coverribbed style seal

 

Caterpillar 3508/34.5L8 Cylinder 
Diesel (Continued)Bore 6.700 
2105 CIDStroke 7.000 

 

CAMSHAFT

CAMSHAFTCAMSHAFTRemanufactured available, call with casting number
24 2636679RKLifter repair kitIncludes: pin and roller [replaces 1329439RK]

 

VALVE TRAIN

CYLHEADNOTEFor complete and bare cylinder heads – Refer to Cylinder Head Catalog or Call with casting
32 7E4609Valve intake/exhaust2.205 head, 0.3717 stem, 30 deg [repl 7C6217]
Intake and Exhaust for early engines; intake only for late engines with 1219839 exhaust valve
16 2102542Valve intake2.2Q5 head dia, 0.3717 stem, 20 deg [repl 1212028]
16 1219839Valve exhaust30 degree, tapered stem
Exhaust for late engines
16 1219835Valve exhaust2.205 head dia, 0.3717 stem, 45 deg [new# 2102529]
16 1944897Valve exhaust2.205 head dia, 0.4950 stem, 45 deg
32 1339306Valve guide0.3735 ID, 4.060 length, step for seal [repl 1302613, 7N1819]
1665944Valve guide0.005 oversize [Std# 13393Q6]
1491982Valve guide0.020 oversize [Std# 1339306]
32 9Y1847Valve guide0.3745 ID, 4.060 length, counterbared, plain
64 2A4429Valve lock0.372 stem dia, 2G, 7 degree
32 7N1903Valve springInner
32 7N1904Valve springQuter
32 1333814RotatorWithout shield; [Order 4P2520 for rotator with 4P2522 shield]
1189491Valve insertExhaust, 2.367 0D# 30 deg [can use 2102529 valve with 1302608 insert] [repl 1W1801]
Use with 7E4609 valve for intake and exhaust 
7E5862Valve insertIntake, 2.367 QD, 30 deg [can use 2102542 valve with 13Q26Q7 insert]
1302607Valve insertIntake; 2.387 0D, 20 deg [4P6776]
1302608Valve insertExhaust; 2.366 ODf 45 deg
TUI^OIAIR  
TURBOTURBOCHARGERNew or remanufactured available, call for pricing
BLOCK  
7W5949Sleeve counter bore0.1250
1204334Sleeve counter bore0.2000
1205337Sleeve counter bore0.3000

 

Caterpillar G3508 / 34.5L8 Cylinder 
GasBore 6.700 
2105 CID, Natural GasStroke 7.000 

3500WPUMP1

For Group: 6I3520, 7E9781, 7E9782, 2128168, 2128169, 2128166

3500WPUMP2

For Group: 1664381, 1664378, 2128172, 2128177 3500WPUMP3

For Group: 1664380,1664377,2128175,2128176 
CYLINDER KIT  
81014140Piston body8.0:1 Compression Ratio 
81339375Piston body8.0:1 Compression Ratio 
87E7600Piston body9.0:1 Compression Ratio 
8614609Piston body11.0:1 Compression Ratio 
81269497Piston body12.0:1 Compression Ratio 
81282385Piston body12.0:1 Compression Ratio 
  
81388506Piston pin[repl 4W8484] 
168N7296Retainer piston pin  
87E2899Ring set  
  
81106991Cylinder linerThick flange, 8.3317″ 
81238206Cylinder liner6.7000 bore, large flange: 8.150 dia x 0.498 height 
86V3774Cylinder liner oring kitKit for 1 liner; Contains: (1) 8N47Q7, (3) 7N2046 
BEARINGS  
51050253Bearing main pairStd, 6.300 jaurnai, 6.6836 housing bore, 2.248 length [4W5704] 
 1050254Bearing main pair■025 
 1050255Bearing main pair■05CT 
  
27C6209Thrust washer  
  
81077330Bearing rod pairStd, 5.3160 journal, 5.6316 housing bore, 2.248 length [7E7997, 1W7538] 
 1077331Bearing rod pair■025 
 1070332Bearing rod pair.050H 
  
107N2048Bearing camEarly style 
101161359Bearing cam  
Late style 
  
81181655Bushing con rod  
161W4594Bushing rocker arm  
GASKET & SEALS  
1508031Set overhaul2JF1-Up, Magneto With Wet Manifold 
1508041Set overhaul9TG1-Up#4WD1-Up Wet Manifold 
  
1508033Set cylinder head2JF1-Up, Magneto With Wet Manifold, multiple 
1508043Set cylinder head9TG1-Up# 4WD1-Up Wet Manifold, multiple 
  
8508044EMSet cylinder headSingle head, E.I.S. and Magneto ignition systems 
8516114Set cylinder headDry ceramic manifold, single 
  
12082362Seal camshaft coverribbed style seal 
12082363Seal side coverribbed style seal 
  
CaterpillarG3508 / 34.5L 8 Cylinder 
Gas (Continued) Bore 6.700 
2105 CID, Natural Gas Stroke 7.000 
11138432Seal crankshaft front   
11138433Seal crankshaft rear   
 
17E2631Gasket oil pan   
12067030Seal valve coverFits ukH Series with Mill & Natural Gas applications; ribbed style seal
CAMSHAFT 
 2636679RKLifter repair kitIncludes: pin and roller [replaces 1329439RK]
168F8858Button rocker arm   
169F7707Ring button retainingFor 8F8858  
VALVE TRAIN 
 CYLHEADNOTEFor complete and bare cylinder heads – Refer to Cylinder Head Catalog or Call with casting
 
162636679LifterRoller type, updated utilizes a new method of ustakingM the bronze bushing to the lifter body [repl
   1329439,2W3256,4P1827) 
 
327N1903Valve springInner  
327N1904Valve springOuter  
169Y1847Valve guide0.3745 ID, 4.060 length, counterbored, plain
161845495Valve guideIntake; Q.3705 IDr 4.Q5Q length, step for seal
169Y1846Valve guideIntake; Q.3745 iDr 3.600 length, plain
161845494Valve guideExhaust; Q.37Q5 IDr 4.Q5Q length, step for seal, counterbored
321376856Valve stem sealMethane  
642A4429Valve lock0.372 stem dia, 2Gr 7 degree 
321333814RotatorWithout shield; [Order 4P2520 for rotator with 4P2522 shield]
327W0028Valve insertIntake and Exhaust -382″ depth 
32611713Valve insertIntake and Exhaust, 0.460″ depth
403B0623Plug   
169S8002Plug oring   
83J7354Seal oring   
403B0645Plug cup   
322045426Water seal   
322045427Water seal   
COOLING SYSTEM 
4614950Thermostat180F degree  
47C3095Thermostat190 degrees [new# 2477133] 
43S9643Thermostat seal   
 
12219278Kit water pump rebuild   
14W3864Seal group water pumpBasic  
25N4383Thrust washer   
48H3128Bolt socket head   
48M2933Shim carrier   
19X4594Seal lip type   
11275400Bearing sleeve   
12128179ShaftStriaght joint press fit 
12128183ImpellerPress fit  
 
12225152Kit water pump rebuild   
20S1618Bolt   
13D2824Seal oring   
24N5834Filter weep hole   
17N4758Thrust washer   

 

Caterpillar G3508 / 34.5L8 Cylinder 
Gas (Continued)Bore 6.700 
2105 CID, Natural GasStroke 7.000 
18C5236Seal lip type  
29M1974Washer hardened  
11664374Ring assembly  
11664376Seal group  
12128180ShaftStriaght joint press fit 
12128184ImpellerPress fit 
  
12225153Kit water pump rebuild  
20S1618Bolt  
13D2824Seal oring  
24N5834Filter weep hole  
17N4758Thrust washer  
18C5236Seal lip type  
29M1974Washer hardened  
11664374Ring assembly  
11664376Seal group  
12128180ShaftStriaght joint press fit 
12128187ImpellerPress fit