| ITEM | QTY | DESCRIPTION | MODEL | PART NUMBER |
| 1 | 12 | Gasket, Discharge valve & Cylinder Head Cover | HT-400 | 316.22052 |
| 2 | 12 | Ring, Spacer, Discharge Valve & Cylinder Head Cover | HT-400 | 316.22051 |
| 3 | 8 | liner, Two Piece Bushing, Valve Guide | HT-400 | 316.22005 |
| 4 | 8 | Insert, Two Piece Bushing, | HT-400 | 316.22004 |
| 5 | 6 | Spring, Valve | HT-400 | 316.2308 |
| 6 | 12 | Valve | HT-400 | 316.22048 |
| 7 | 12 | Insert, Valve, HT-400? Urethane, Acid/ Frac Service (Yellow) | HT-400 | 316.22046 |
| 8 | 12 | Insert, Valve, HT-400? Urethane, Standard Service (Brown) | HT-400 | 316.22049 |
| 9 | 12 | Seat Valve | HT-400 | 316.22047 |
| 10 | 12 | O-ring, 90 Duro | HT-400 | 8.34041 |
| 11 | 3 | Retainer, Guide Bushing | HT-400 | 316.23953 |
| 12 | 6 | Seal | HT-400 | 316.233 |
| 13 | 2 | Plunger | HT-400 | 316.23085 |
| 14 | 6 | O-Ring, 90 Duro | HT-400 | 8.3402 |
| 15 | 6 | O-Ring, 70 Duro | HT-400 | 70.33739 |
| 16 | 12 | Seal, Push Rod, L-Spacer | HT-400 | 316.10014 |
| 17 | 3 | Retainer, Stop and Spring | HT-400 | 316.22242 |
| 18 | 12 | Boot, Suction and Stop | HT-400 | 316.25233 |
| 19 | 3 | Spring, Lock | HT-400 | 316.22252 |
