Excavator Filters
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Full-flow spin-on lube filter identified by P551807. Published exact-number specifications give 108 mm outer diameter, 1 1/8-16 UN thread, 262 mm length and 99% efficiency at 21 micron. Published application and comparison records include Caterpillar 1R-1807, Mack 485GB3236 and Volvo 85114049. Confirm the complete number, thread, gasket, filtration grade and engine serial range before ordering.
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 | Full-flow lube-filter number | P551807 |
| Equipment Manufacturer Part Number | Published Caterpillar application | 1R-1807 |
| Published Equipment Cross-Reference | Verify engine and serial range | Mack 485GB3236 / Volvo 85114049 |
| Published Aftermarket Comparison | Verify thread and filtration grade | B7700 / LF3973 / LFP3236 / 57791 |
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
3 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 Published Caterpillar reference: 1R-1807, Published engine families: Caterpillar, Mack, Volvo, Fitment limitation: Confirm P551807 / 1R-1807, 1 1/8-16 UN thread, 108 x 262 mm body, gasket, filtration grade and engine serial range. Confirm the complete part number and machine serial range before ordering.
Manufacturer number: 1R-1807.
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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