Does BG PMP-0445020122 replace OE 0445020122?

Yes. BG PMP-0445020122 is listed against 0445020122. Confirm the number printed on the removed part and any manufacturer supersession before ordering.

Which vehicles does BG PMP-0445020122 fit?

Recorded coverage includes Cummins. It is supplied as a direct-fit aftermarket diesel fuel pumps. Adaptation, reset or relearn procedures required by the vehicle manufacturer still apply after installation.

Does this fault code always mean the diesel fuel pumps has failed?

No. Exhaust leaks, wiring and connector damage, reductant quality, dosing performance and upstream engine faults can all produce the same codes. Validate those inputs before replacing BG PMP-0445020122.

PMP-0445020122

High-Pressure Fuel Pump 0445020122 | Fit for Cummins QSB4.5

Common rail fuel pump 0445020122. Fit for Cummins QSB4.5 diesel engine applications.

BG Part Number: PMP-0445020122
Category: Diesel Fuel Pumps
Application: Fit for Cummins QSB4.5 diesel engine applications
Product type: High-pressure common rail fuel pump
Reference number: 0445020122
Reference system: BOSCH
Engine application: Suitable for QSB4.5

OE Cross References

0445020122

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Product Description

Common rail fuel pump 0445020122

Fit for Cummins QSB4.5 diesel engine applications. This complete assembly supplies pressurised diesel fuel to the common rail injection circuit. The supported engine designation is QSB4.5.

Drive, mounting and fuel connections

The selected photograph shows the threaded drive shaft and retaining nut, circular locating seal, machined flange, cast housing, rear fuel connections and electrical connector. Match these installation interfaces and the complete reference with the removed pump.

Reference matching

Confirm the engine identification, full pump number and installation details before ordering. A shared engine family alone does not establish that all pump versions are interchangeable.

Vehicle manufacturer names, logos and OE reference numbers are used for identification and compatibility purposes only. BEST GROWTH products are independent aftermarket products and are not manufactured, sponsored or endorsed by the respective vehicle manufacturers.

BG PMP-0445020122 (OE 0445020122): function on the vehicle

High-Pressure Fuel Pump 0445020122 | Fit for Cummins QSB4.5 is supplied by BEST GROWTH under part number PMP-0445020122, cross-referenced to OE 0445020122, as a direct-fit aftermarket diesel fuel pumps. In service it forms part of the diesel exhaust aftertreatment loop, where sensing, reductant dosing and catalytic conversion have to work together for the system to reach its emissions target.

BG PMP-0445020122 is built to the position defined by its OE application on the platform from Cummins. Position, calibration and connector layout are part of the specification, so a part that physically fits is not automatically the correct part.

Aftertreatment components are specified as a set. Matching the OE number is more reliable than matching appearance.

Fitment for Cummins and OE cross reference

BG PMP-0445020122 replaces 1 OE reference: 0445020122. Always confirm the number printed on the removed part, including any supersession issued by the vehicle manufacturer.

Recorded vehicle coverage for PMP-0445020122 includes Cummins, typically on Fit for Cummins QSB4.5 diesel engine applications. Coverage lists are a starting point for identification, not a substitute for checking the OE number on the vehicle.

Quote the number printed on your part with the engine code when you enquire; a single-reference part is the most common source of ordering errors when a platform received a mid-life update.

Symptoms that lead to replacing 0445020122

These complaints bring a vehicle in with the Cummins diesel fuel pumps under suspicion. None of them prove BG PMP-0445020122 has failed on its own, which is why the checks below matter before a replacement is ordered.

reduced engine performance or inducement
abnormal DEF consumption or regeneration behaviour
intermittent faults that appear only once the system is hot
aftertreatment fault codes that return after a repair

Checks before fitting BG PMP-0445020122

Aftertreatment faults are usually system faults. Working through these checks prevents a repeat failure after the new diesel fuel pumps is fitted.

Check the harness, connector and mounting position before replacing the component.
Verify the repair with a monitored drive cycle rather than a code clear.
Confirm the application before ordering: similar-looking parts differ electrically and functionally.

Quality, packaging and ordering PMP-0445020122

BG PMP-0445020122 is manufactured and tested to aftermarket replacement standards, with electrical, leakage and functional testing carried out before packing. Bulk and retail packaging, private-label cartons and customer-specific labelling are available for distributors and workshop groups.

Send OE 0445020122 or the number printed on your part, the engine code and the vehicle identification number with your enquiry, and our technical team will confirm the correct reference, current stock position and lead time before you commit to an order.

Frequently asked questions

Does BG PMP-0445020122 replace OE 0445020122?: Yes. BG PMP-0445020122 is listed against 0445020122. Confirm the number printed on the removed part and any manufacturer supersession before ordering.
Which vehicles does BG PMP-0445020122 fit?: Recorded coverage includes Cummins. It is supplied as a direct-fit aftermarket diesel fuel pumps. Adaptation, reset or relearn procedures required by the vehicle manufacturer still apply after installation.
Does this fault code always mean the diesel fuel pumps has failed?: No. Exhaust leaks, wiring and connector damage, reductant quality, dosing performance and upstream engine faults can all produce the same codes. Validate those inputs before replacing BG PMP-0445020122.