MitsubishiMitsubishi S12R-MPTK
Mitsubishi S12R-MPTK Major Overhaul BOM
Overhaul Kits
Engineer's Note: This list includes validated OEM part numbers for 10,000hr (Top End) and 20,000hr (Major) overhauls. Quantities are per single engine unit.
| Select | System | Part Name | OEM P/N | Qty |
|---|---|---|---|---|
| Cylinder Head | Cylinder Head Subassembly | 37501-80050 | 12 | |
| Cylinder Head | Intake Valve | 38C04-00201 | 24 | |
| Cylinder Head | Exhaust Valve | 38C04-00201 | 24 | |
| Cylinder Head | Valve Guide | 37101-10600 | 48 | |
| Cylinder Head | Valve Seat Insert | 37501-13100 | 48 | |
| Cylinder Head | Valve Spring Assembly | 38C04-00401 | 48 | |
| Cylinder Head | Ext Valve Rotator | 38C04-00301 | 24 | |
| Cylinder Head | Head Gasket | 37501-02201 | 12 | |
| Cylinder Head | Head Bolt Set | 37501-12501 | 72 | |
| Piston & Liner | Piston Assembly | 38C17-00100 | 12 | |
| Piston & Liner | Piston Ring Set | 37517-10010 | 12 | |
| Piston & Liner | Cylinder Liner | 37507-55600 | 12 | |
| Piston & Liner | Gudgeon Pin | 37517-18100 | 12 | |
| Piston & Liner | Liner O-Ring Kit | 37507-32400 | 12 | |
| Crankshaft | Crankshaft Assembly | 37507-02801 | 1 | |
| Crankshaft | Main Bearing Upper | 37507-21100 | 7 | |
| Crankshaft | Main Bearing Lower | 37507-21200 | 7 | |
| Crankshaft | Connecting Rod Assy | 37519-60V10 | 12 | |
| Crankshaft | Big End Bearing (Std) | 37519-13100 | 12 | |
| Crankshaft | Vibration Damper | 37522-10500 | 1 | |
| Fuel System | Mechanical Injector | 37707-18400 | 12 | |
| Fuel System | Injection Pump | MHI-PLN-V12 | 2 | |
| Fuel System | Fuel Filter Assembly | 37540-01101 | 1 | |
| Fuel System | Fuel Filter Cartridge | 37540-02100 | 2 | |
| Cooling | Fresh Water Pump | 45352-90022 | 1 | |
| Cooling | Raw Water Pump | 37553-28100 | 1 | |
| Cooling | Thermostat (Water) | 37539-00600 | 1 | |
| Cooling | Thermostat (Oil) | 37539-10500 | 1 | |
| Lubrication | Oil Pump | MHI-GEAR-V12 | 1 | |
| Lubrication | Oil Filter Cartridge | 37540-11100 | 2 | |
| Lubrication | Oil Cooler Core | MHI-COOLER-V12 | 1 | |
| Turbocharging | Turbocharger Assembly | 49182-03270 | 1 | |
| Turbocharging | Exhaust Manifold | 37531-38100 | 2 |