Donaldson P550371 oil filter matches
Compare Donaldson P550371 against compatible oil filters from other brands. Review thread size, gasket dimensions, height, valve behavior, and fitment notes before substituting. This is a research tool, not an automatic guarantee of fitment.
Before substituting: verify filter style, thread size or cartridge dimensions, gasket dimensions, height and clearance, bypass behavior, and your engine or equipment requirements.
Best equivalent matches
Select up to 4 filters, then click Compare to view their specs next to the searched filter. How matching is scored.
4 compatible options
| Specification | Searched filter Donaldson P550371 Reference filter | WIX 51734Best Match COMPATIBLE Candidate adds internal bypass; usually redundant with engine-mounted bypass | COMPATIBLE Candidate adds internal bypass; usually redundant with engine-mounted bypass | COMPATIBLE Candidate adds internal bypass; usually redundant with engine-mounted bypass | RISKY Candidate adds internal bypass; usually redundant with engine-mounted bypass |
|---|---|---|---|---|---|
| Thread size | 11/2-16 | 11/2-16 | 11/2-16 | 11/2-16 | 11/2-16 |
| Gasket OD | 99 mm | 100.8 mm | 100.8 mm | 100.8 mm | 100.8 mm |
| Gasket ID | 90 mm | 91.11 mm | 91.11 mm | 91.11 mm | 91.11 mm |
| Can OD | 108 mm | 108.8 mm | 108.8 mm | 108.4 mm | 108.8 mm |
| Height | 204 mm | 205.6 mm | 205.6 mm | 206.3 mm | 151.6 mm |
| Internal bypass valve | No | Yes | Yes | Yes | Yes |
| Bypass PSID | Not applicable | 8 - 11 | 8 - 11 | 8 - 11 | 13 - 19 |
| Anti-drainback valve | Yes | Yes | Yes | Yes | Yes |