Where this guide helps
Excavators, wheel loaders, compact loaders and other construction machines rely on hydraulic cleanliness to protect pumps, valves, cylinders and transmission components. This guide focuses on 361-7480 / P550230 / P573112 / 32/920300 / 581R5206 and related JCB service filters so a distributor can compare replacement references before requesting samples or placing a mixed order.
The safest selection is not based on the part number alone. Confirm the old filter marking, outside diameter, height, thread or gasket position, bypass requirement, media grade and the machine’s working conditions. For high-dust construction sites, quarry fleets and rental equipment, these checks reduce incorrect fitment, bypass leakage and early service complaints.
361-7480 / P550230 / P573112 / 32/920300 / 581R5206
Model coverage and service role
| Model | Brand | Filter type | Service role |
|---|---|---|---|
| 361-7480 | Caterpillar | Hydraulic filter | Hydraulic return or circuit filtration reference for excavators and loaders. |
| P550230 | Donaldson | Hydraulic filter | Replacement reference where cleanliness class and seal fit need confirmation. |
| P573112 | Donaldson | Hydraulic filter | Hydraulic element reference for construction machines working in dusty jobsites. |
| 32/920300 | JCB | Hydraulic oil filter | JCB hydraulic oil filter reference for service kits and dealer stock. |
| 581R5206 | JCB | Transmission oil filter | Transmission oil filter reference often checked together with hydraulic service. |
| 581M8563 | JCB | Transmission oil filter | Related JCB transmission filter for mixed maintenance orders. |
| 32004133 | JCB | Engine oil filter | Engine oil filter reference for complete construction-machine service packages. |
What to verify before ordering
- Confirm the exact machine model, serial range and the current filter part number from the machine or maintenance record.
- Measure height, outside diameter, inner sealing diameter, thread and gasket seat; photos should show both ends of the old filter.
- Check hydraulic oil viscosity, working pressure, bypass valve requirement and target cleanliness level before approving an equivalent filter.
- For transmission filters, confirm whether the element is used in transmission oil, hydraulic oil or engine oil service.
- Ask for sample photos, label language, carton marks and batch traceability before repeating bulk orders.
Distributor purchasing workflow
For dealer purchasing, group the inquiry by machine series and service interval rather than sending isolated part numbers. A practical request includes quantities for hydraulic, transmission, engine oil, fuel and air filters in one spreadsheet. Precise can review cross references, provide neutral or private-label packaging, and prepare samples for approval before mass production.
Useful pages: hydraulic filter category, construction machinery filters, and filter cross-reference guide.
FAQ
Can one hydraulic filter replace several reference numbers?
Sometimes yes, but only after dimensions, sealing structure, bypass requirement and operating conditions are checked. Brand names and part numbers are used for replacement identification only.
What information should a dealer send for quotation?
Send the part number list, estimated quantity, machine model, photos of the old filter, target market, package requirement and whether OEM or private-label branding is needed.
Can Precise support OEM packaging for construction filters?
Yes. After sample confirmation, Precise can support neutral cartons, customer labels, private-label packaging and mixed-model export orders.
