Excavator Filters
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Spin-on hydraulic return filter identified by P550388. Published exact-number specifications give 123.5 mm outer diameter, 1 1/2-16 UN thread and 169.2 mm length with cellulose media. Published equipment data lists JLG 34HA, 45HA, 25RTS, 33RTS, 400RTS, 40RTS and 500RTS. Confirm the complete number, dimensions, thread, gasket, hydraulic circuit and machine 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 | Spin-on hydraulic-filter number | P550388 |
| Published Hydraulic-System Cross-Reference | Verify circuit, thread and filtration grade | Vickers 941107 / Parker 926169 / Gresen K23018 |
| Published Equipment Cross-Reference | Verify machine serial range | JLG hydraulic return filter application |
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 JLG equipment: 34HA, 45HA, 25RTS, 33RTS, 400RTS, 40RTS, 500RTS, Published hydraulic families: Gresen, Vickers, Fitment limitation: Confirm P550388, 1 1/2-16 UN thread, 123.5 x 169.2 mm body, gasket, circuit and serial range. Confirm the complete part number and machine serial range before ordering.
No alternate number is listed for P550388. Send the original nameplate for an alternate-number check.
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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