Engine
| Displacement | 0.84 L |
|---|---|
| Cylinders | 3 |
| Rated speed | 1800 rpm |
| Oil capacity | 5.8 L |
This engine also powers 11 generator set(s) on Facts About Generators.
Parts
37| Part # | Description | Qty | System | |
|---|---|---|---|---|
| 025100012 | Seal Washer (Industrial only) | 2 | Seal | PartsGeek |
| 025100016 | Seal Washer | 1 | Seal | PartsGeek |
| 052100100 | O-Ring | 2 | Seal | PartsGeek |
| 052100150 | O-Ring | 1 | Seal | PartsGeek |
| 052100280 | O-Ring (formerly #054109013) | 1 | Gasket | PartsGeek FridayParts $168.00 |
| 052109076 | O-ring | 1 | Seal | PartsGeek |
| 052109078 | O-ring | 1 | Seal | PartsGeek |
| 054109013 | Gasket | 1 | Gasket | PartsGeek |
| 068115250 | Tube | 1 | Hose | PartsGeek |
| 110996820 | Gasket | 1 | Gasket | PartsGeek |
| 140406310 | Suction Filter | 1 | Oil filter | Amazon eBay PartsGeek |
| 140546020 | Filter Joint | 1 | Gasket | PartsGeek |
| 140606710 | Oil Drain Hose | 1 | Hose | PartsGeek |
| 185046210 | Alternator Assembly | 1 | Alternator | PartsGeek |
| 198636170 | Oil Seal | 1 | Seal | PartsGeek FridayParts $34.59 |
| 24-03100 | Oil Filter | 1 | Oil filter | Amazon eBay $23.45 PartsGeek |
| FF5114 | Fuel | 1 | Fuel filter | Amazon eBay $14.95 PartsGeek |
| LF3311 | Lube | 1 | Oil filter | Amazon eBay $14.95 PartsGeek |
| 040106203 | Bearing | 1 | Service part / kit | PartsGeek |
| 040126210 | Bearing | 2 | Service part / kit | PartsGeek |
| 042309013 | Bearing | 1 | Service part / kit | PartsGeek |
| 120116160 | Tappet | 6 | Service part / kit | PartsGeek FridayParts $31.49 |
| 120456222 | Push Rod | 6 | Service part / kit | PartsGeek |
| 120456231 | Push Rod | 6 | Service part / kit | PartsGeek |
| 140036220 | Relief Valve Assembly | 1 | Service part / kit | PartsGeek FridayParts $68.50 |
| 185446218 | Stator, complete | 1 | Service part / kit | PartsGeek |
| 198466060 | Plug | 1 | Service part / kit | PartsGeek |
| 198486770 | Bushing | 1 | Service part / kit | PartsGeek |
| 198517191 | Bush; S.T.D. (formerly #198517190) | 1 | Service part / kit | PartsGeek |
| 198517195 | Bush; U.S. 0.25 (formerly #198517194) | 1 | Service part / kit | PartsGeek |
| 198517198 | Bush; U.S. 0.50 (formerly #198517197) | 1 | Service part / kit | PartsGeek |
| 198517221 | Bush; S.T.D. (formerly #198517220) | 1 | Service part / kit | PartsGeek |
| 198517225 | Bush; U.S. 0.25 (formerly #198517224) | 1 | Service part / kit | PartsGeek |
| 198517228 | Bush; U.S. 0.50 (formerly #198517227) | 1 | Service part / kit | PartsGeek |
| NL843NK | 12 | Service part / kit | PartsGeek | |
| O843K-05/03 | 1 | Service part / kit | PartsGeek | |
| RE529956 | Breathing | 1 | Service part / kit | PartsGeek |
Service & wear parts shared with every machine that uses this engine. Confirm the exact part for your serial number.
Aftermarket parts that fit this tractor
203T-8706 PartsGeek FridayParts $47.99 4N-0360 PartsGeek FridayParts $47.99 D333C PartsGeek 951B PartsGeek 992C PartsGeek 4N-9680 PartsGeek 3126B PartsGeek 637G PartsGeek 931G PartsGeek 621F PartsGeek 627F PartsGeek 657E PartsGeek 950F PartsGeek 980B PartsGeek 994H PartsGeek 4M-0736 PartsGeek FridayParts $89.99 1E-1283 PartsGeek FridayParts $89.99 963B PartsGeek 963C PartsGeek 953B PartsGeek
Parts listed by aftermarket suppliers as fitting this tractor — leads compiled from supplier catalogs; verify the exact part for your serial number.
Common questions
What engine does the Caterpillar 631C use?
The Caterpillar 631C tractor is powered by the Northern Lights 843N engine.
About
Caterpillar 631C — tractor. Specifications and parts compiled from manufacturer documents.