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Replacement Parts for Caterpillar® Engines

CAT DIESEL ENGINE PARTS LIST
CAT D399, CAT 1140, CAT 1145,CAT 1150, CAT 1160, CAT 1670, CAT 1673

Caterpillar G399 / 64.4L 16 Cylinder 
Gas (Continued) Bore 6.250 
3928 CID, Natural Gas  Stroke 8.000 
8 1F9223Gasket side door   
8 1F4419Gasket water cover   
 
1 4W2606Seal crankshaftDirectional CW 
1 4W2568Seal groupFront, standard rotation 
1 4W2570Seal groupFront, opposite rotation 
1 4W2607Seal crankshaftDirectional CCW 
1 4W2569Seal groupRear, standard rotation 
1 4W2571Seal groupRear, opposite rotation 
CAMSHAFT 
32 1021561Lifter(repl 5L5486) 
32 3F7445Bushing rocker arm   
32 8F8858Button rocker arm   
Head using 3/8″ stem valves
32 9F7707Ring button retainingFor 8F8858  
Head using 3/8″ stem valves
32 1A0744Screw rocker arm adj   
Head using 3/8″ stem valves
32 1B4204NutRocker arm adjusting 
Head using 3/8″ stem valves
VALVE TRAIN 
CYLHEADNOTEFor complete and bare cylinder heads – Refer to Cylinder Head Catalog or Call with casting
 
D353HEAD2NOTE:Two groove valve stem with 0.3717 dia and 2 locks each
Head using 3/8″ stem valves
16 1W8606Valve intake2.505 head, 0.3717 stem, 2 groove
16 2W3211Valve exhaust2.350 head, 0.3717 stem, 2 groove
16 7C5914Valve exhaust20 degree, lean burn 
32 7S6323Valve springSingle spring  
Use With 7N7639 Rotocoil
32 9M5349Valve springInner, 1.125 0Df 2.201 free 
Use With 7N7G39 Rotocoil
32 4F5409Valve springDouble, inner  
Use With 7F7666 Rotocoil
32 9M5350Valve springOuter, 1.654 0Df 2.574 free 
Use With 7N7639 Rotacoil
32 4F5408Valve spring   
Use With 7F7666 Rotocoil
16 2N9298Valve guideIntake; for 0.3717 stem, 5.065 length
16 2N9299Valve guideExhaust; for 0.3717 stem, 5.450 length
32 3N1414SpacerUse with non-flanged guide 
64 2A4429Valve lock0.372 stem dia, 2G, 7 degree 
32 7N7639Rotator[repl 8M7637,4S7468] 
Use With Correct Springs
32 7F7666Rotocoil   
Use With Correct Springs
16 8N7780Shield   
16 1W3062RetainerIntake; includes 8N7780 shield 
16 2N9297RetainerExhaust  
16 5S1757Valve seatIntake  
16 1S5738Valve insertExhaust  
 

 

Caterpillar G399 / 64.4L

Gas (Continued) 3928 CID, Natural Gas

16 Cylinder Bore 6.250 Stroke 8.000 
D353HEAD1NOTE:Tapered groove valve stem with 0.4955 dia and 3 locks each
Head using 1/2″ stem valves
16 7M7817Valve intake2.505 head, 0.4955 stem, tapered groove [4H9805, 6H3186,1M7452]
16 5S5323Valve exhaust   
32 7S6323Valve springSingle spring  
Use With 7N7639 Rotacoil
32 9M5349Valve springInner, 1.125 0Df 2.201 free 
Use With 7N7639 Rotacoil
32 4F5409Valve springDouble, inner  
Use With 7F7666 Rotocoil
32 9M5350Valve springOuter, 1.654 0Df 2.574 free 
Use With 7N7G39 Rotacoil
32 4F5408Valve spring   
Use With 7F7666 Rotocoil
16 4N3664Valve guideIntake; non flanged, use with 3N1414 spacer; for Q.4955 stem dia, 5.045 length
16 6N8847Valve guideExhaust; non flanged, use with 3N1414 spacer; for 0.4955 stem dia, 5.438 length
32 3N1414SpacerUse with non-flanged guide 
96 3B1143Valve lockNo bead, for tapered valve stem, for 0.4995 stem
32 7N7639Rotator[repl 8M7637,4S7468] 
Use With Correct Springs
32 7F7666Rotocoil   
Use With Correct Springs
16 8N7780Shield   
16 1W3062RetainerIntake; includes 8N 7 7的 shield 
16 2N9297RetainerExhaust  
16 5S1757Valve seatintake  
16 1S5738Valve insertExhaust  
 
128 3B0645Plug cup   
16 7L0918Spark plug adapter   
16 6L1576Gasket spark plug adpMetal gasket  
16 6L7816Seal spark plug adp   
64 5H7071Water director   
CRANKSHAFT 
1 4W2566Adapter crankshaft sealFront, standard rotation 
1 4W2567Adapter crankshaft sealRear, standard rotation 
2 3N9160Seal ring crankshaftPiston ring type 
2 5L2093Adapter gasket   
2 8L3972Baffle   
OIL 1 LUBE SYSTEM 
1 6N9236Oil coolerCore  
COOLING SYSTEM 
4 6I4954Thermostat170F degree  
4 4W4794ThermostatUsed with 7W8066 water lines group only, 180 degree [new# 2477133]
4 7C3095Thermostat190 degrees [new# 2477133] 
4 2N0741Gasket thermostat housi   
4 3S9643Thermostat seal   
 
1 8S1892Set water pump   
Check Serial Number
1 6V6384Set water pump   
49C 261-567

 

CaterpillarG399 / 64.4L 16 Cylinder 
Gas (Continued) Bore 6.250 
3928 CID, Natural Gas Stroke 8.000 
16V6385Set water pump  J
49C 568- Up
16V5427Set water pump   
For 2N0955 Water Pump Group
 
11W7080Kit water pump rebuildContains water pump shaft 5N4378
 
14N7526Seal assembly   
16N9313Seal assembly   
15N4378Shaft water pumpLong shaft  
15N1883Shaft water pumpShort shaft  
11H8278Seal oring   
12S3966RingUse with 4N7526 
85L5840Washer sealing   
13S3535Seal rubberUse with 2S3966 
 4L6706Gasket shimUse 1 to 10  
15B3265Gasket drain plug   
14L3437Gasket water pump mtg   
14L3756Bearing water pump   
15L2660Bearing water pumpFresh water pump; 1 in water pump, 1 in carrier
17F7510Lock   
88J6775Seal   
14L9965Gasket retainer   
12N2560Seal shaft oil   
16N4744AdapterUse with6N9313 
16N5476Seal ringMetal, Use with 6M9313 
16N5475Seal ringRubber, Use with 6N9313 
13H2018Nut   
13F2771Cotter pin   
165L9371Water tubeCast iron  
166L7817Seal ring water tube   
13N4365Aftercooler elementFresh water  
13N4366Aftercooler elementFresh water  
TU^OIAIR 
85M2894Washer manifold exhaus hardened, for 3/81‘ studs (22132″ x 13/32″ x .109″ thick)
BLOCK 
 8N6938Insert blockStainless steel .0625″ 
 1W6265Sleeve blockZ stepped  
 1W6266Sleeve blockZ stepped  
 1W6267Sleeve blockZ stepped  
 5P0936Sleeve blockL type, Cast Iron 

 

Caterpillar 1670/5.7L

Diesel 350 CID

4 Cylinder Bore 4.500 Stroke 5.500 
CYLINDER KIT 
4PLG9L2308Cylinder kit4.5QQ bore, 1.70Q pin dia [9L23Q8 piston, 3S4029 rings, 7N98Q5 pin, 1S9543 retainers, 8S224Q liner]
49L2308Piston body4.5QQQ bore, 1.7QQ pin (rectangular comp rings)
43S4029-FRing set4.5000 bore;⑴ 1/8, (1) 3/32, (1) 7/32 [1 cyl set]
47N9805Piston pin1.700 dia, 3.730 length 
81S9543Retainer piston pinuse with 1.700 dia pin 
48S2240-BCylinder liner4.5000 bore  
83S3977Cylinder liner oring4.5000 bore; Lower seal 
BEARINGS 
42323233Bearing main pairStd  
48N8225Bearing main pair■010  
48N8226Bearing main pair■020  
48N8227Bearing main pair■030  
42531APA40-FMBearing main pair■040  
42531APA50-FMBearing main pair■050  
 
17S9439-FBearing thrust pairStd, flanged  
17S9844Bearing thrust pair.010 flanged  
17S9845-FBearing thrust pair.020 flanged  
17S9846-FBearing thrust pair.030 flanged  
 
44W5739Bearing rod pairStd, 3.Q000 journal, 3.25QQ housing bore, 1.504 length (replaces 8N8220)
48N8221Bearing rod pair■010  
48N8222Bearing rod pair■020  
48N8223Bearing rod pair■030  
 
27M4046Bearing cam1.008 0AL  
19M5477Bearing cam1.135 0AL  
 
49H3984Bushing con rod1.500 pin, 1.450 0AL, straight 
GASKET & SEALS 
 CATGASKETNOTEFor gasket sets: Call with Serial and Arrangement Numbers
CAMSHAFT 
 CAMSHAFTCAMSHAFTRemanufactured available, call with casting number
VALVE TRAIN 
 CYLHEADNOTEFor complete and bare cvlinder heads – Refer to Cylinder Head Catalog or Call with casting
47M7358Valve intake1.895 head, 6.563 length, 0.3717 stem, 3D deg, 2G
49M4163Valve exhaust1.77Q head, 6.563 length, 0.372 stem, 3Q deg, 2G; stellite [repl 7M7359]
162A4429Valve lock0.372 stem dia, 2G, 7 degree 
84N3668Valve guide0.375Q ID, Q.6585 QD, 3.180 length. New style, flangeless
8140-1906NValve guide0.3771 ID, 0.6577 OD, 3.220 length, flanged, old style [5S4507]
89H9164Valve spring1.282 0Df.188 wire dia, 2.678 free
83S0461-FRotator   
41W5321-FValve insert   
Intake
49M6495-FValve insertExhaust  
FUEL I INJECTOR 
48M1584-FNozzle service groupContains: capsule nozzle, orings, seal ring
丁8N8796Nozzle service groupContains: capsule nozzle, orings, seal ring
TUI^OIAIR 
[TURBOTURBOCHARGERNew or remanufactured available, call for pricing
Caterpillar 1673/8.6L

Diesel 525 CID

6 Cylinder Bore 4.500 Stroke 6.000 
CYLINDER KIT 
6PLG2M5558Cylinder kit4.5QQ bore, 1.50Q pin, PC [2M5558 piston, 3S4029 rings, 7N98Q4 pin, 9H4Q15 retainers, 8S2240 liner]
62M5558-FPiston body4.5QQQ bore, 1.5QQ pin, PC, rectangular ring, straight rod, single ni groove
63S4029-FRing set4.5000 bore;⑴ 1/8, (1) 3/32, (1) 7/32 [1 cyl set]
67N9804Piston pin1.500 dia, 3.735 length 
129H4015Retainer piston pinuse with 1.500 dia pin 
68S2240-BCylinder liner4.5000 bore  
123S3977Cylinder liner oring4.5000 bore; Lower seal 
BEARINGS 
62323233Bearing main pairStd  
68N8225Bearing main pair■010  
68N8226Bearing main pair■020  
68N8227Bearing main pair■030  
62531APA40-FMBearing main pair■040  
62531APA50-FMBearing main pair■050  
 
17S9439-FBearing thrust pairStd, flanged  
17S9844Bearing thrust pair.010 flanged  
17S9845-FBearing thrust pair.020 flanged  
17S9846-FBearing thrust pair.030 flanged  
 
64W5739Bearing rod pairStd, 3.Q000 journal, 3.25QQ housing bore, 1.504 length (replaces 8N8220)
68N8221Bearing rod pair■010  
68N8222Bearing rod pair■020  
68N8223Bearing rod pair■030  
 
47M4046Bearing cam1.008 0AL  
19M5477Bearing cam1.135 0AL  
 
69H3984Bushing con rod1.500 pin, 1.450 0AL, straight 
69M4010Bushing con rod[Discontinued] 
68N0702Bushing con rod1.500 pin, 1.388 0AL, straight 
GASKET & SEALS 
 CATGASKETNOTEFar gasket sets: Call with Serial and Arrangement Numbers
CAMSHAFT 
 CAMSHAFTCAMSHAFTRemanufactured available, call with casting number
127M4166Lifter[OEM] Call for price and availability of remanufactured
VALVE TRAIN 
 CYLHEADNOTEFor complete and bare cylinder heads – Refer to Cylinder Head Catalog or Call with casting
67M7358Valve intake1.895 head, 6.563 length, 0.3717 stem, 30 deg, 2G
69M4163Valve exhaust1.77Q head, 6.563 length, 0.372 stem, 3Q deg, 2G; stellite [repl 7M7359]
242A4429Valve lock0.372 stem dia, 2G, 7 degree 
124N3668Valve guide0.3750 ID, 0.6585 OD, 3.180 length. New style, flangeless
12140-1906NValve guide0.3771 ID, 0.6577 QD# 3.220 length, flanged, old style [5S4507]
129H9164Valve spring1.282 OD, .188 wife dia, 2.678 free
123S0461-FRotator   
61W5321-FValve insert   
Intake
69M6495-FValve insertExhaust  
FUELI INJECTOR I
68M1584-FNozzle service groupContains: capsule nozzle, orings, seal ring
68N8796Nozzle service groupContains: capsule nozzle, orings, seal ring
Caterpillar 1673C/10.5L 6 Cylinder  
Diesel  Bore 4.750  
638 CID  Stroke 6.000  
CYLINDER KIT  
6PLG9N5250Cylinder kit4.75Q bore, 1.700 pin, PCfstraight rod, 17.5:1 CB, with plug [9N5250 piston, 9S3068 rings, 7M9805 pin, 1S9543 retainers, 11Q5800 liner] 
69N5250Piston4.7500 bore, PC, dual-nif with heat plug, 17.5:1 OR (rect comp rings) 
69S3068Ring set4.75QQ bore; 2 rectangular compression, .218 oil (9S3Q29,5S6750,9S7788] 
67N9805Piston pin1.700 dia, 3.730 length  
121S9543Retainer piston pinuse with 1.700 dia pin  
61105800Cylinder liner4.75QQ bore, uses 5P8768 liner oring kit (Liner only) [repl 2P8889] 
65P8768Cylinder liner oring kit(3)5S667(U1)2W6134  
185S6670Cylinder liner oringLower seal   
62W6134Cylinder liner oringUpper filler band  
BEARINGS  
72323233Bearing main pairStd   
78N8225Bearing main pair■010   
78N8226Bearing main pair■020   
78N8227Bearing main pair■030   
72531APA40-FMBearing main pair■040   
72531APA50-FMBearing main pair■050   
  
26N8940Thrust plate.185 thick (replaces 6N4129)  
29S3037Thrust plate.232 thick (replaces 6N4129)  
  
64W5739Bearing rod pairStd, 3.Q000 journal, 3.25QQ housing bore, 1.504 length (replaces 8N8220) 
68N8221Bearing rod pair■010   
68N8222Bearing rod pair■020   
68N8223Bearing rod pair■030   
  
47M4046Bearing cam1.008 OAL   
19M5477Bearing cam1.135 0AL   
  
68N0703Bushing con rod1.700 pin, 1.430 〇AL# straight  
GASKET & SEALS  
 CATGASKETNOTEFar gasket sets: Call with Serial and Arrangement Numbers 
CAMSHAFT  
 CAMSHAFTCAMSHAFTRemanufactured available, call with casting number 
127S3161LifterSolid type   
VALVE TRAIN  
 CYLHEADNOTEFor complete and bare cylinder heads – Refer to Cylinder Head Catalog or Call with casting 
62W2621Valve intake2.020 head dia, 5.510 length, .3717 stem, 30 deg, 2Gr Stellite (replaces 4W1670,7S8809, 9N6117) 
68N0875Valve exhaust1.896 head dia, 5.469 length, 0.3717 stem dia, 30 degree, 2Gf stellite [repl 7S6767] 
242A4429Valve lock0.372 stem dia, 2G, 7 degree  
121621589Valve guide0.3741 ID, 0.6583 OD, 2.781 length (repl: 1487425, 1487502, 1167553,1090390, 1033298, 2P1262, 5S4598) 
127S7144Valve spring1.373 ODf .185 wire dia, 2.085 free 
121031800-FRotatorwithout shield [repl 8N7782, 5S5874] 
121W5300RotocapIncludes 6N7174 shield  
65S7218Valve insertIntake, 2.125 0□  
61W5321-FValve insert    
[exhaust 
FUEL! INJECTORI 
68M1584-FNozzle service groupContains: capsule nozzle, orings, seal ring 
68N8796Nozzle service groupContains: capsule nozzle, orings, seal ring 
Caterpillar 1673C/10.5L6 Cylinder 
Diesel (Continued)Bore 4.750 
638 CIDStroke 6.000
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