The Mitsubishi S12R engine line groups 14 variant designations. Parts and fitment are pooled here so a cross-reference found on one variant surfaces for the whole family.
| Part # | Description | Category |
|---|---|---|
| 30091-08800 | valve lapper | air_filter |
| S12R-PTA | engine | |
| S12R-PTA2 | engine | |
| S12R-PTAA2 | engine | |
| 45483-61200 | Fuel filter | fuel_filter |
| GU-GST-1365 | VALVE GUIDE AND FUEL PUMP PULLER | fuel_pump |
| 37594-01300 | ThreeBond 1211 liquid gasket | gasket |
| GU-53-YA-40 | GUIDE, VALVE TAPPET | guide |
| 33591-10101 | nozzle remover | injector |
| 45403-51100 | Oil cooler | oil_cooler |
| 36291-00098 | Oil sample bottle set | oil_filter |
| 36291-19100 | Engine oil sampling pump | oil_filter |
| 45193-50700 | Oil level gage | oil_level_gage |
| 06.2019 | Radiator | other_service |
| 32591-04200 | valve seat puller | other_service |
| 33591-04300 | valve guide remover | other_service |
| 37191-03200 | piston ring tool | other_service |
| 37591-02400 | eye nut | other_service |
| 37591-02600 | rocker bushing tool | other_service |
| 37591-06200 | liner pusher | other_service |
| 37591-06300 | bolts | other_service |
| 37591-06400 | valve seat cutter | other_service |
| 37591-06430 | valve seat cutter | other_service |
| 37598-09100 | head bolt spacers | other_service |
| 37598-09201 | projection plate O | other_service |
| 43291-00301 | Plunger holder (special tool) | other_service |
| 45191-08400 | Pliers | other_service |
| 45493-50700 | Do not open inspection cover. | other_service |
| 45493-51300 | HIGH PLACE MAY CAUSE FALLING. | other_service |
| 48202-09301 | Sleeve installer | other_service |
| 48202-14100 | Shim (thickness: 0.5 mm [0.0197 in.]) | other_service |
| 48202-14200 | Shim (thickness: 0.6 mm [0.0236 in.]) | other_service |
| 48291-00200 | Plunger spring compression jig | other_service |
| 48291-00301 | Plunger holder | other_service |
| 48291-00400 | Cam thrust ejector | other_service |
| 49160-90101 | snap ring pliers | other_service |
| 49160-90110 | snap ring pliers | other_service |
| 99240-32120 | Pub.No. 99240-32120 | other_service |
| GU-14-Y | VALV - GU-14-Y | other_service |
| GU-14-Y-117 | BODY - GU-14-Y-117 | other_service |
| GU-14-Y-117B | NUT, LOCK - GU-14-Y-117B | other_service |
| GU-14-Y-117C | DE - Y-117C | other_service |
| GU-14-Y-117D | REGULATOR, FUEL PRESSURE - GU-52-YA-117A | other_service |
| GU-14-Y-117E | SCREW, ADJUSTING - GU-14-Y-117E | other_service |
| GU-14-Y-117G | SPRING - GU-14-Y-117G | other_service |
| MM321420 | 7: | pout. eve W11 1 1 1 a | other_service |
| SCR25 | Mitsubishi SCR system | other_service |
| GU-52-Y-94 | PLATE, DECOMPRESSION | plate |
| 48291-00100 | Pump assembly stand | pump |
| 37191-01500 | valve guide seal installer | seal |
| 37507-12500 | shim, thickness: 0.10 mm [0.0039 in.] | shim |
| 37507-12510 | shim, thickness: 0.05 mm [0.0020 in.] | shim |
| 37507-12520 | shim, thickness: 0.15 mm [0.0059 in.] | shim |
| 48202-14300 | tappet | tappet |
| 48202-14400 | tappet | tappet |
| GU-52-Y-121 | TAPPET, VALVE | tappet |
| 32522-04100 | Thermo Label 75°C to 95°C (167°F to 203°F) | thermostat |
| 32522-04200 | Thermo Label 100°C to 120°C (212°F to 248°F) | thermostat |
| 32522-04300 | Thermo label (50 to 70 °C) | thermostat |
| 45493-51800 | Turning gear position (turning shaft) | turning_gear_position |
Parts cataloged across all variants of this engine family — verify the exact part fits your specific variant and serial number before ordering.
Leads compiled from supplier catalogs across the family’s variants; verify the exact part for your variant and serial number.