oil filter replacement and cross-reference - Engine oil filters protect bearings, turbochargers and lubrication passages from soot, metal particles and aged oil contaminants. A replacement number is useful, but the final order should also confirm thread, gasket, bypass valve setting and service interval.
This guide helps distributors compare LF17503, LF17810, P550820, P551100, E422HD86 and 13055724 before buying samples or planning mixed-model stock. See the cross-reference guide for more replacement identification data.
Related filter models
Why oil filter matching needs more than a part number
Two filters can share a similar external shape but differ in bypass valve, anti-drainback design, media area or sealing surface. For fleet service, those differences can affect oil pressure, cold start protection and repeat-order stability.
| Model | Filter type | What to verify |
|---|---|---|
| LF17503 | oil filter | heavy-duty engine lubrication service reference |
| LF17810 | oil filter element | fleet maintenance and replacement stock planning |
| P550820 | oil filter element | Donaldson replacement identification for engine oil service |
| P551100 | oil filter | thread, gasket and bypass-valve verification before ordering |
| E422HD86 | oil filter | European truck and equipment replacement reference |
| 13055724 | oil filter | Weichai diesel engine oil filtration replacement check |
Ordering checklist
- Record the current oil filter number and engine model.
- Measure gasket position, thread, overall height and outside diameter.
- Check whether the buyer needs carton labels, private-label packaging or mixed-model shipment.
- Keep sample approval photos and batch records for repeat orders.
Brand names and part numbers are used only for replacement identification and compatibility checking. They do not imply that GUOHAO is the trademark owner or an official catalog publisher for those brands.
For a quotation, send the current part number, photos of the installed filter, estimated quantity, packing requirement and target market to GUOHAO. This helps confirm samples before repeat OEM or private-label orders.
