6620-51-1021 6620-51-1020 Engine Oil Pump compatible with Cummins NH220 diesel engine.
Precision manufactured maintain proper engine lubrication.
High pumping efficiency, durable structure, effectively protect engine against insufficient oil pressure and premature wear.
Ideal for heavy machinery engine repair.
| Part Number | 6620-51-1021 6620-51-1020 |
| Part Name | Oil Pump |
| Brand Name | Genuine |
| Engine Family | NH220 |
| Warranty | 1 Year |
| Packing | Original Customized |
| MOQ | 1 PCS |
Manufactured strictly following OEM dimensional and performance standards. The pump body adopts high-strength cast iron, paired with precision ground alloy gears. Tight gear clearance ensures stable oil delivery volume and consistent pressure output. It features excellent wear resistance, low operation noise and good resistance to high temperature under long continuous heavy-load working conditions. Every oil pump undergoes strict oil pressure and flow testing before packing to guarantee stable and reliable performance.
Compatible Engine & Machines: NH220 Diesel Engine, fits Komatsu D60P-6, D75S-2, D80A-12 Bulldozers
Key Advantages:
✅ OEM equivalent dimension, direct bolt-on installation without modification
✅ Precision alloy gears, stable oil flow and constant working pressure
✅ Heavy-duty cast housing, high temperature and wear resistant
✅ Low noise operation, reduces friction loss inside engine
✅ 100% pressure & flow tested before shipment
✅ Cost-effective aftermarket spare part for engine overhaul and repair
| 1 | AR10172 | oil pump | NT-855 |
| 2 | AR9835/3042378 | oil pump | NT-855 |
| 3 | AR12387/3634640 | oil pump | K-38 |
| 4 | 3047549/AR10588 | oil pump | K-19 |
| 5 | 3803698/3804633 | oil pump | N-14 |
| 6 | 3821572 | oil pump | NT-855 |
| 7 | 3821579/3068460 | oil pump | NG-4 |
| 8 | 3609833 | oil pump | NT-855 |
| 9 | 4003950 | oil pump | M-11 |
| 10 | 3096326 | oil pump | QSK1-9 |
| 11 | 3634643 | oil pump | K50 |
| 12 | AR51237/BM94082 | oil pump | NHC-250 |
| 13 | 6128-52-1013 | oil pump | S6D-155 |
| 14 | 6151-51-1005 | oil pump | S6D-125 |
| 15 | 6620-51-1020 | oil pump | NH-220 |
| 16 | AR11475 | valve,pressure relief | K-38 |
Important Notes: Please confirm your engine model and part number 6620-51-1021 / 6620-51-1020 before ordering. Professional mechanic installation is recommended. Replace oil filter and engine oil together for best service life.
