Excavator Filters
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LF9050 is a combination full-flow/bypass spin-on lubricating-oil filter cross-referenced to Cummins 4920071. Cummins technical literature specifies LF9050 as a recommended lube filter, while cross-reference catalogs connect it to Donaldson P554560, Baldwin BD7176, Wix 57139 and Mann WP12905. QSK38, QSK50 and QSK60 applications are commonly cataloged, but the engine arrangement and filter head must be checked. Confirm number, thread, gasket, length, bypass configuration and engine serial.
Send the machine model, engine model or nameplate photo so our team can confirm compatibility before shipment.
| Relationship | Reference family | Number |
|---|---|---|
| Primary Manufacturer Part Number | Fleetguard lube-filter reference | LF9050 |
| Engine Manufacturer Cross-Reference | Cummins reference | 4920071 |
| Competitive Cross-Reference | Donaldson reference | P554560 |
| Competitive Cross-Reference | Baldwin reference | BD7176 |
| Competitive Cross-Reference | Wix reference | 57139 |
| Competitive Cross-Reference | Mann reference | WP12905 |
Product fitment guide
Quickly compare the reference number and recorded machine applications. Use the original photos and the checklist before ordering.
Part identification
Formatting aliases are the same number written differently. Related assemblies and remanufactured numbers are not presented as direct interchanges.
Product summary
Before ordering
Machine fitment
2 model references
Compatibility lists identify searchable model families, not every production serial range. Confirm the original part number and machine serial number before purchase.
Quick fitment answers
Recorded compatible model references include Engine families: Cummins QSK38 / QSK50 / QSK60 leads, Fitment limitation: Confirm numbers, thread, gasket, length, bypass, engine arrangement and serial. Confirm the complete part number and machine serial range before ordering.
Manufacturer number: 4920071.
Match the complete part number on the original component. Compare connectors, mounting points and visible dimensions with the product photos. Confirm the exact machine or engine model and serial range before ordering. Send clear photos of the original unit and connector layout when requesting a quote.
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