This is the Bosch 0445020109, a new CP3 common-rail high-pressure fuel pump. It is Cummins 4989266 and Komatsu 6754-72-1012, used on the Cummins QSB6.7 and on the Komatsu SAA6D107E six-cylinder and SAA4D107E four-cylinder engines. It is a genuine Bosch pump, not a rebuild.

Komatsu machines listed for this pump include the PC200-8, PC220-8, PC240LC-8 and PC270-8 excavators, the WA200-6, WA250-6, WA320-6 and WA380-6 wheel loaders, the D39EX-22 and D39PX-22 dozers and the GD555-5, GD655-5 and GD675-5 graders. Low rail pressure codes, long cranking and a loss of power under load are the usual reasons a CP3 is replaced. Rule out the lift pump, the filters and a leaking rail relief valve first.

Specifications

Fits / Applications

• Cummins QSB6.7 engines that carry fuel pump Cummins 4989266
• Komatsu SAA6D107E and SAA4D107E engines that carry Komatsu pump 6754-72-1012
• Komatsu excavators: PC160LC-8, PC200-8, PC200LC-8, PC220-8, PC220LC-8, PC228US-8, PC228USLC-8, PC228US-3E0, PC240LC-8, PC270-8, PC270LC-8, PC308USLC-3E0, HB205-1, HB215LC-1
• Komatsu wheel loaders: WA200-6, WA200PZ-6, WA250-6, WA250PZ-6, WA320-6, WA320PZ-6, WA380-6, WA380Z-6
• Komatsu dozers, graders and crushers: D39EX-22, D39PX-22, GD555-5, GD655-5, GD675-5, BR380JG-1E0
• Match the Cummins, Komatsu or Bosch number on the old pump. Some of these machines are also listed with a different CP3.

Change the fuel filters and bleed the low-pressure side before you start the engine. If the old pump came apart inside, check the rail, relief valve and injectors for debris. Cap every open line: common-rail parts do not tolerate dirt.

Part Numbers & Cross Reference

Bosch 0445020109  ·  Cummins 4989266  ·  Cummins remanufactured 4989266RX  ·  Komatsu 6754-72-1012  ·  Bosch remanufactured version 0986437373  ·  Bosch remanufactured version 0986437375

Cross-reference numbers can change with engine serial, build year and emissions tier, so treat this list as a starting point. Send us your engine serial number and we will confirm the exact match against your build before anything ships. That check is free and takes a few minutes.

Frequently Asked Questions

Which Komatsu machines does the Bosch 0445020109 fit?

Catalogs list it for PC160LC-8, PC200-8, PC220-8, PC240LC-8 and PC270-8 excavators, WA200-6, WA250-6, WA320-6 and WA380-6 wheel loaders, D39EX-22 and D39PX-22 dozers and GD555-5, GD655-5 and GD675-5 graders, where the pump is Komatsu 6754-72-1012. Give us the machine model and serial number and we will confirm it.

What numbers does the 0445020109 replace?

Cummins 4989266 and Komatsu 6754-72-1012. The Cummins remanufactured number is 4989266RX, and Bosch lists remanufactured versions as 0986437373 and 0986437375.

How is it different from the Bosch 0445020122?

Both are CP3 pumps for the same engine family. The 0445020122 is Cummins 5256607 and this pump is Cummins 4989266, and some catalogs list both against Komatsu 6754-72-1012. Call 530-668-0818 with the engine serial number and we will tell you which one your engine takes.

Is this pump new or remanufactured?

It is a new genuine Bosch CP3, not a rebuild.

Related Parts

• Cummins QSB 4.5 & QSB 6.7 Tier 3 CP3 Injection Pump | Bosch 0445020122 New (Cummins 5256607)
• Cummins QSB 4.5 & QSB 6.7 Tier 3 CP3 Injection Pump | Bosch 0986437310 Remanufactured
• Cummins QSB4.5 & QSB6.7 Tier 4 CP4.2 High-Pressure Fuel Pump | Bosch 0445020609 New
• Cummins QSB6.7 Common-Rail Fuel Injector | Bosch 0445120251 New (Cummins 5263314)

Why Buy From Valley Fuel Injection

We are a diesel fuel-injection and turbocharger shop in Woodland, CA, rebuilding pumps, injectors and turbos on our own benches since 1993, not a drop-ship storefront. When you call, you talk to the people who test these units. We verify fitment against your engine serial, VIN or build date before anything ships, so the right part arrives the first time.