Engine
| Displacement | 60.0 L |
|---|---|
| Cylinders | 16 |
| Aspiration | Turbocharged (1) |
| Rated speed | 1500 rpm |
| Oil capacity | 380.0 L |
This engine also powers 40 generator set(s) on Facts About Generators.
Parts
52| Part # | Description | Qty | System | |
|---|---|---|---|---|
| 130-6405 | Gasket, Radiator | 3 | Gasket | PartsGeek FridayParts $42.50 |
| 130-7145 | Gasket, Radiator | 3 | Gasket | PartsGeek |
| 130-7232 | Gasket, Radiator (4") | 1 | Gasket | PartsGeek |
| 130-7293 | Gasket, Radiator (65NB) | 1 | Gasket | PartsGeek |
| 132-0475 | Pump, Water (Remote) | 1 | Pump | PartsGeek |
| 140-3813 | Element, Air Cleaner Primary | 4 | Air filter | PartsGeek |
| 140-3814 | Element, Safety (Air Cleaner) | 4 | Air filter | PartsGeek |
| 140-3815 | Cleaner, Air (Dust Ejector) | 4 | Air filter | PartsGeek |
| 154-3182 | Gasket, Flange (Fuel Line) | 1 | Gasket | PartsGeek |
| 155-3704 | Gasket, Exhaust | 1 | Gasket | PartsGeek |
| 155-4109 | Gasket, Flange | 3 | Gasket | PartsGeek |
| 155-4601 | Gasket, Exhaust | 1 | Gasket | PartsGeek |
| 155-4735 | Gasket, Exhaust (10" ANSI Flange) | 1 | Gasket | PartsGeek |
| 186-6093 | Seal, Valve Stem | Seal | PartsGeek | |
| 186-6109 | Gasket, Cylinder Head | 1 | Gasket | PartsGeek FridayParts $22.00 |
| 186-6112 | Gasket, Cylinder Head | 1 | Gasket | PartsGeek FridayParts $32.00 |
| 186-6436 | Gasket, Cylinder Head | 1 | Gasket | PartsGeek |
| 186-7013 | Head Assy, Cylinder | 1 | Gasket | PartsGeek |
| 186-7014 | Head Assy, Cylinder | 1 | Gasket | PartsGeek |
| 186-7015 | Head Assy, Cylinder | 1 | Gasket | PartsGeek |
| 501-0838 | Line, Fuel (DN80 Gas 500mm) | 1 | Hose | PartsGeek |
| 503-1872-01 | Clamp, Hose | 4 | Hose | PartsGeek |
| 503-2204-06 | Hose, Steam (19mm x 300) | 1 | Hose | PartsGeek |
| 503-2204-07 | Hose, Steam (19mm x 800) | 1 | Hose | PartsGeek |
| 503-2204-08 | Hose, Steam (19mm x 1000) | 1 | Hose | PartsGeek |
| 503-2204-09 | Hose, Steam (19mm x 1700) | 1 | Hose | PartsGeek |
| 503-2518 | Hose, Vent | 1 | Hose | PartsGeek |
| 504-0262 | Valve, Solenoid | 1 | Sensor | PartsGeek |
| 505-2086 | Nipple, Pipe (3/4) | 2 | Hose | PartsGeek |
| 505-2098 | Nipple, Pipe (1/2) | 2 | Hose | PartsGeek |
| 509-0478 | Seal - O Ring | 2 | Seal | PartsGeek |
| QSK60 | Gas engine | Engine | PartsGeek | |
| QSK60G | Engine model QSK60G | Engine | PartsGeek | |
| 155-4734 | Flange, Exhaust (10" ANSI Flange) | 1 | Service part / kit | PartsGeek |
| 155-4736 | Flange, Exhaust (10" BS Flange) | 1 | Service part / kit | PartsGeek |
| 186-6087 | Valve, Exhaust | Service part / kit | PartsGeek | |
| 186-6088 | Plate, Valve Spring | Service part / kit | PartsGeek | |
| 186-6089 | Spring, Valve | 1 | Service part / kit | PartsGeek |
| 186-6090 | Carrier, Valve Spring | Service part / kit | PartsGeek | |
| 186-6091 | Cotter, Valve | Service part / kit | PartsGeek | |
| 186-6092 | Guide, Valve | Service part / kit | PartsGeek | |
| 186-6758 | Valve, Inlet | Service part / kit | PartsGeek | |
| 186-7004 | Insert, Inlet Valve | Service part / kit | PartsGeek | |
| 186-7005 | Insert, Exhaust Valve | Service part / kit | PartsGeek | |
| 333-0634-02 | Heater, Coolant - 6420 Watt | 2 | Service part / kit | PartsGeek |
| 504-0215 | Valve, Check (1/4) | 1 | Service part / kit | PartsGeek |
| 504-0239 | Valve, Ball (3/4) | 1 | Service part / kit | PartsGeek |
| 504-0247 | Valve, Ball (1/2) | 2 | Service part / kit | PartsGeek |
| 504-0294 | Valve, Ball (3 Way 2" DN80) - ANSI Flanges | 1 | Service part / kit | PartsGeek |
| 504-0295 | Valve, Ball (3 Way 3" DN80) - ANSI Flanges | 1 | Service part / kit | PartsGeek |
| 504-0301 | Valve, Ball (3 Way 2" DN80) - BS Flanges | 1 | Service part / kit | PartsGeek |
| 504-0302 | Valve, Ball (3 Way 3" DN80) - BS Flanges | 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
306G0078 PartsGeek 3406E PartsGeek 3412E PartsGeek 777D PartsGeek 785C PartsGeek 793D PartsGeek 623G PartsGeek 627G PartsGeek 657G PartsGeek 4J-8492 PartsGeek 4K-4835 PartsGeek 7J-0581 PartsGeek 613G PartsGeek 5D-0470 PartsGeek 966D PartsGeek 980B PartsGeek 980C PartsGeek 327-5221 PartsGeek 352F PartsGeek 825K PartsGeek 420F PartsGeek 428F PartsGeek 430F PartsGeek 432F PartsGeek 434F PartsGeek 444F PartsGeek 450F PartsGeek C3.3B PartsGeek 344-7391 PartsGeek FP-XP-0039902 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 621 use?
The Caterpillar 621 tractor is powered by the Cummins/Onan QSK60G engine.
About
Caterpillar 621 — tractor. Specifications and parts compiled from manufacturer documents.