Deutz TCD 3.6 & TD 3.6 CP4 Common-Rail High-Pressure Fuel Pump | Bosch 0445020525 New (Deutz 04123934)
This is the Bosch 0445020525, a new CP4 common-rail high-pressure fuel pump for the Deutz 3.6L four-cylinder engine, the TD 3.6 and TCD 3.6 L4. It is Deutz part 04123934, which replaces the older 04123891. It is a genuine Bosch pump, not a rebuild.
Low rail pressure codes, hard starting, a loss of power under load and metal in the fuel filter are the usual reasons this pump gets replaced. A CP4 that has failed internally sends metal through the rail and injectors, so check the filter and the return fuel before you fit a new pump. Some Bosch catalogs list this pump for the Deutz 2.9L as well, but the 2.9L is listed with other pump numbers: Deutz 04132378 and 04163114, which are Bosch 0445020527 and 0445020551. Order by the number on your old pump, not by engine size.
Confirm Fitment Before You Order
Deutz parts listings show 04123934 for the TCD 3.6 L4 and 04132378 and 04163114 (Bosch 0445020527 and 0445020551) for the 2.9L. Send us the Bosch number from the pump tag, the Deutz part number and the engine serial number and we will match it before you order. Call 530-668-0818 and we will confirm the exact match at no charge before anything ships.
Specifications
| Part number | 0445020525 |
| Brand | Bosch |
| Condition | New, genuine, in original packaging |
| Warranty | Bosch limited warranty, parts only. Call us and we handle the claim. |
| Type | Bosch CP4 common-rail high-pressure fuel pump |
| Engines | Deutz TD 3.6 and TCD 3.6 L4, four cylinder |
| Displacement | 3.6L |
| Deutz numbers | 04123934, 04123891 |
| Bosch alternate number | 0445020526 |
| Shipping weight | 8 lb |
Fits / Applications
- Deutz TD 3.6 and TCD 3.6 L4 four-cylinder engines that carry Deutz pump number 04123934 or 04123891
- Deutz 2.9L engines only if the old pump is tagged Bosch 0445020525 or Deutz 04123934. The 2.9L is normally listed with Deutz 04132378 or 04163114.
- Used in compact construction, lift and farm equipment powered by these engines. Match the pump number, not the machine.
If the old pump failed with metal in the fuel, flush or replace the lines and rail, test the injectors and change the filters before you start the engine on the new pump. Fill the pump with clean diesel and bleed the low-pressure side first. A CP4 must not run dry.
Part Numbers & Cross Reference
Bosch 0445020525 · Bosch alternate number 0445020526 · Deutz 04123934 · Deutz 04123891 · Other catalog reference D4123934 · Other catalog reference 50288228
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 Deutz engines does the Bosch 0445020525 fit?
It is the CP4 high-pressure pump for the Deutz 3.6L four cylinder, the TD 3.6 and TCD 3.6 L4, where the original pump is Deutz 04123934 or 04123891.
Will the 0445020525 fit a Deutz 2.9L?
Some Bosch catalogs list it for the 2.9L, but Deutz parts listings show 04132378 and 04163114 for that engine, and those are Bosch 0445020527 and 0445020551. Only order this pump for a 2.9L if your old pump is tagged 0445020525 or 04123934.
Is this pump new or remanufactured?
It is a new genuine Bosch pump, not a rebuild.
How do I confirm it is the right pump for my machine?
Read the Bosch number off the pump tag or give us the Deutz part number and engine serial number. Call 530-668-0818 and we will check it before you order.
Related Parts
- Deutz TD 2.9 & TCD 2.9 CP4 Common-Rail High-Pressure Fuel Pump | Bosch 0445020551 New (Deutz 04163114)
- Deutz TCD 3.6 L4 3.6L Common-Rail Fuel Injector (Deutz 04123831) | Bosch 0445110558 New
- Common Rail Diesel Injector Testing & Rebuild Service
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.
UPS Ground anywhere in the lower 48. Questions on fitment? Call 530-668-0818.
Pricing covers the unit itself. Any applicable sales tax is additional; shipping is calculated at checkout. Buying tax-exempt? Qualifying diesel repair shops, fleets, farms, and agricultural operations can purchase tax-free. Set up tax-exempt purchasing once and every qualifying order is tax-free going forward.
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