Engine
| Displacement | 10.57 L |
|---|---|
| Cylinders | 8 |
| Aspiration | turbocharged |
| Rated speed | 900 rpm |
Parts
45| Part # | Description | Qty | System | |
|---|---|---|---|---|
| 102-75 | Cylinder head-to-liner nuts (lubricated)*, initial | 1 | Nut | Amazon eBay |
| 122-90 | Idler gear stubshaft bracket-to-crankcase, 3/8" | 1 | Bolt | Amazon eBay |
| 136-100 | Crankcase-to-oil pan, initial | 1 | Bolt | Amazon eBay FridayParts $116.50 |
| 1830-1350 | Coupling disc-to-crankshaft, 20-cyl., (lubricated)* | 1 | Bolt | Amazon eBay |
| 23-17 | Oil jumper-to-stubshaft | 1 | Bolt | Amazon eBay |
| 238-65 | Turbocharger mounting bolts, 3/4" | 1 | Bolt | Amazon eBay |
| 2440-1800 | Cylinder head crab nuts (studs and nuts lubricated)*, final | 1 | Nut | Amazon eBay |
| 2441-1800 | Coupling disc-to-crankshaft, 8, 12, & 16-cyl., (lubricated)* | 1 | Bolt | Amazon eBay |
| 251-185 | No. I idler gear thrust plate-to-crankcase | 1 | Bolt | Amazon eBay |
| 27-20 | Piston cooling oil pipe bolts | 1 | Bolt | Amazon eBay |
| 27-41 | Handhole cover bolts | 1 | Bolt | Amazon eBay FridayParts $302.78 |
| 281-60 | Piston cooling manifold flange-to-crankcase | 1 | Bolt | Amazon eBay |
| 325-240 | Cylinder head-to-liner nuts (lubricated)*, final | 1 | Nut | Amazon eBay |
| 359-265 | Drive gear-to-shaft | 1 | Impeller | Amazon eBay |
| 37-27 | Idler gear stubshaft bracket-to-crankcase, 5/16" | 1 | Bolt | Amazon eBay FridayParts $1075.98 |
| 400-295 | Coupling disc rim bolts | 1 | Bolt | Amazon eBay |
| 407-300 | Cylinder head crab nuts (studs and nuts lubricated)*, initial | 1 | Nut | Amazon eBay |
| 47-32 | Oil manifold-to-crankcase | 1 | Bolt | Amazon eBay |
| 47-35 | Governor drive flange-to-drive gear | 1 | Bolt | Amazon eBay |
| 610-450 | Connecting rod-to-piston pin (lubricated)* | 1 | Bolt | Amazon eBay |
| 617-455 | Engine mounting bolts | 1 | Bolt | Amazon eBay |
| 68-50 | Injector crab nuts (lubricated)* | 1 | Nut | Amazon eBay |
| 81-60 | Bolt-on crankshaft stubshaft (lubricated) *(where applicable) | 1 | Bolt | Amazon eBay |
| 88-65 | Accessory drive housing-to-crankcase and oil pan | 1 | Bolt | Amazon eBay |
| 33E1176 | Top Dcek Cover | Service part / kit | Amazon eBay | |
| 8034600 | Crab stud thread protectors | Service part / kit | Amazon eBay | |
| 8050688 | Crab nut tap 1-3/4"-12 | Service part / kit | Amazon eBay | |
| 8052752 | Towels (bound-edge wiping towels) | Service part / kit | Amazon eBay | |
| 8060349 | Main bearing bolt thread die 1-1/4"-12 | Service part / kit | Amazon eBay | |
| 8060387 | Main bearing nut tap 1-1/4"-12 | Service part / kit | Amazon eBay | |
| 8078281 | Hydraulic jack (10 ton) | Service part / kit | Amazon eBay | |
| 8140761 | Ratchet adapter | Service part / kit | Amazon eBay | |
| 8191591 | Main bearing nut offset ratchet wrench | Service part / kit | Amazon eBay | |
| 8193041 | Spray gun (for engine cleaning) | Service part / kit | Amazon eBay | |
| 8250855 | Crab nut power wrench set | Service part / kit | Amazon eBay | |
| 8275379 | Lower insert application and removal tool | Service part / kit | Amazon eBay | |
| 8275380 | Press and puller assembly | Service part / kit | Amazon eBay | |
| 8307731 | Thread Lubricant, Texaco Threadtex No. 2303 | Service part / kit | Amazon eBay | |
| 8335627 | Main bearing stud nut power wrench | Service part / kit | Amazon eBay | |
| 8377322 | Torque indicator | Service part / kit | Amazon eBay | |
| 8425725 | High temperature resistant grease No. 4 (10 lbs) | Service part / kit | Amazon eBay | |
| 8474773 | Main bearing stud nut socket | Service part / kit | Amazon eBay | |
| 8487487 | Main bearing cap application and removal tool | Service part / kit | Amazon eBay | |
| 9080987 | Anchor plate assembly | Service part / kit | Amazon eBay | |
| 9511395 | Crab stud thread die 1-3/4"-12-UNR | Service part / kit | Amazon eBay |
Service & wear parts shared with every machine that uses this engine. Confirm the exact part for your serial number.
Aftermarket parts that fit this excavator
601A051-73032 FridayParts $68.00 1A051-73030 FridayParts $68.00 1A051-73035 FridayParts $68.00 1A021-60015 FridayParts $32.88 MX4700T FridayParts $32.88 15531-64601 FridayParts $23.61 15221-43081 Amazon eBay $37.58 KuduParts $13.00 FridayParts $15.69 17123-63016 FridayParts $125.35 SinoCMP $219.00 1A021-63820 FridayParts $115.00 RD431-62122 KuduParts $50.00 FridayParts $52.35 RD118-61290 FridayParts $1994.65 RD138-61292 FridayParts $1994.65 68658-14430 KuduParts $184.00 FridayParts $188.50 68651-14430 KuduParts $184.00 FridayParts $188.50 RD118-14433 KuduParts $184.00 FridayParts $188.50 RD148-14430 KuduParts $184.00 FridayParts $188.50 RD411-51352 FridayParts $39.50 RD411-51353 FridayParts $29.90 SinoCMP $48.00 RD411-64050 FridayParts $199.00 RD411-64052 FridayParts $199.00 SVO7E SinoCMP $139.00 FridayParts $189.99 T2055-72210 FridayParts $189.99 1A021-56602 FridayParts $19.50 RD401-61270 KuduParts $12.00 FridayParts $16.99 KX71-3KX91-3 FridayParts $16.99 RD118-53710 KuduParts $40.00 FridayParts $42.00 RD138-53513 FridayParts $83.99 RD138-61110 FridayParts $2599.99 RD138-61112 FridayParts $2599.99 RD138-61115 FridayParts $2599.99 1G788-99353 FridayParts $135.00 1A081-24110 FridayParts $112.89 16483-74110 FridayParts $57.30 6685105 FridayParts $68.25 6685520 FridayParts $18.99 6A671-75030 FridayParts $220.00 6A671-75040 FridayParts $90.00 1A021-04130 KuduParts $19.00 FridayParts $19.99 90038-11120 FridayParts $41.23 70091-00096 FridayParts $550.00 70091-00152 FridayParts $550.00 1A085-74280 FridayParts $350.99 T1060-33710 FridayParts $39.00 RD411-42680 FridayParts $110.00 RD158-21302 FridayParts $478.43 RD118-21300 FridayParts $478.43 RD148-21300 FridayParts $478.43 RC411-17103 FridayParts $1705.09 RC411-17102 FridayParts $1844.99 RD118-61708 FridayParts $2201.23 RC411-21503 FridayParts $388.99 KuduParts $546.00 RC411-21606 KuduParts $404.00 FridayParts $423.66 RD118-61904 FridayParts $2550.99 T0270-75300 FridayParts $79.80 15221-33650 FridayParts $91.99 RD118-42440 KuduParts $83.00 FridayParts $85.00 RC411-17133 KuduParts $191.00 FridayParts $195.69 RC601-17120 FridayParts $93.98 1A053-36410 FridayParts $43.75 1A053-36414 FridayParts $43.75
Parts listed by aftermarket suppliers as fitting this excavator — leads compiled from supplier catalogs; verify the exact part for your serial number.
Common questions
What engine is in the Kubota KX121-3S?
The Kubota KX121-3S excavator is powered by the Electro-Motive Division Of General Motors 645E3 engine.
About
Kubota KX121-3S — excavator. Specifications and parts compiled from manufacturer documents.