The fuel pump with Bosch part number 0 445 020 137 is a Common Rail Diesel Fuel Pump.
It is specifically part of the Bosch CP4.2 pump family. Here are the key details and applications for this unit:
Technical Details
Brand: Bosch
Bosch Part Number: 0 445 020 137
Pump Type: High Pressure Pump (CP4.2)
Pressure: Capable of generating up to 1,800 bar (approx. 26,000 psi)
Fuel Type: Diesel
Applications
You are correct that it is used in DAF vehicles, but specifically for the PACCAR PX-7 engine, which is a 6.7-liter engine.
This engine is found in:
DAF CF (Medium Duty / Distribution series): Models equipped with the 6.7 PACCAR engine.
DAF LF: Some later models or specific chassis configurations using the 6.7L.
Other PACCAR Applications: Because PACCAR owns DAF, this pump is also found in Kenworth and Peterbilt medium-duty trucks in the North American market that use the PX-7 engine.
Cross-Reference / OEM Numbers
If you are looking to replace this pump, it is often cross-referenced under various Original Equipment Manufacturer numbers:
DAF / PACCAR: 1846719C1, 5011802516
Bosch Service: You may also see it listed under "RE500131" or similar remanufactured exchange numbers depending on the supplier.
Important Service Note
The Bosch CP4.2 (and CP4.1) pumps are known to be sensitive to fuel contamination and lubricity. If you are replacing this pump, it is highly recommended to:
Replace the fuel filters.
Flush the fuel lines and rail.
Check the fuel injectors for metal contamination (debris from a failing pump can destroy the injectors and engine).
