High-Pressure Fuel Pump 0445020070 | Fit for Komatsu diesel applications

BG PMP-0445020070 (OE 0445020070): function on the vehicle

High-Pressure Fuel Pump 0445020070 | Fit for Komatsu diesel applications is supplied by BEST GROWTH under part number PMP-0445020070, cross-referenced to OE 0445020070, 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-0445020070 is built to the position defined by its OE application on the platform from Komatsu. 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 Komatsu and OE cross reference

BG PMP-0445020070 replaces 3 OE references: 0445020070, 6271-71-1110 and 4941173. Always confirm the number printed on the removed part, including any supersession issued by the vehicle manufacturer.

Recorded vehicle coverage for PMP-0445020070 includes Komatsu, typically on Fit for Komatsu diesel applications. Coverage lists are a starting point for identification, not a substitute for checking the OE number on the vehicle.

Where several OE numbers appear against one BG reference, they are supersessions or regional variants of the same specification. Ordering by 0445020070 and quoting the number on your part lets our technical team confirm the variant before despatch.

Symptoms that lead to replacing 0445020070

These complaints bring a vehicle in with the Komatsu diesel fuel pumps under suspicion. None of them prove BG PMP-0445020070 has failed on its own, which is why the checks below matter before a replacement is ordered.

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

Checks before fitting BG PMP-0445020070

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-0445020070

BG PMP-0445020070 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 0445020070 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-0445020070 replace OE 0445020070?

Yes. BG PMP-0445020070 is listed against 0445020070, 6271-71-1110 and 4941173. Confirm the number printed on the removed part and any manufacturer supersession before ordering.

Which vehicles does BG PMP-0445020070 fit?

Recorded coverage includes Komatsu. 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-0445020070.