WIX 51060MP vs Donaldson P550518: Oil Filter Compatibility
Compare WIX 51060MP and Donaldson P550518 oil filters by compatibility, dimensions, thread size, gasket fit, bypass valve, anti-drainback valve status, and match confidence. Use this comparison as a fitment review, not as an automatic substitution guarantee. Both use a 13/16-16 thread.
Quick verdict
Both use a 13/16-16 thread.
- Thread size is the first hard-fit check for any comparison of spin-on filters.
- Gasket OD and gasket ID are the most important seal-related dimensions.
- Height differences can matter for clearance even when thread and gasket fit appear close.
- Bypass and anti-drainback differences may be important, depending on the application.
WIX 51060MP and Donaldson P550518 specifications
How matching is scored| Specification | WIX 51060MP | Donaldson P550518 |
|---|---|---|
| Thread size | 13/16-16 | 13/16-16 |
| Gasket OD | 87.48 mm | 88 mm |
| Gasket ID | 78.74 mm | 79 mm |
| Can OD | 93 mm | 94 mm |
| Height | 131.5 mm | 136 mm |
| Internal bypass valve | Yes | Yes |
| Bypass PSID | 8 - 11 | 12 - 15 |
| Anti-drainback valve | Yes | Yes |
What matters in this specific comparison
Thread size matches: both are 13/16-16.
Gasket OD differs by 0.5 mm (WIX 51060MP: 87.48 mm, Donaldson P550518: 88 mm).
Gasket ID differs by 0.3 mm (WIX 51060MP: 78.74 mm, Donaldson P550518: 79 mm).
Donaldson P550518 is 4.5 mm taller (WIX 51060MP: 131.5 mm, Donaldson P550518: 136 mm) -- check clearance before substituting.
Can OD differs by 1 mm (WIX 51060MP: 93 mm, Donaldson P550518: 94 mm).
Both open their bypass valve in a comparable range: WIX 51060MP at 8-11 psi, Donaldson P550518 at 12-15 psi -- these ranges do not overlap.
Open related filters
Before substituting, verify thread fit, gasket sealing dimensions, height clearance, bypass behavior, and anti-drainback requirements for your specific application.