WIX WL10255MP vs Donaldson P550965: Oil Filter Compatibility
Compare WIX WL10255MP and Donaldson P550965 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 M22x1.5 thread.
Quick verdict
Both use a M22x1.5 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 WL10255MP and Donaldson P550965 specifications
How matching is scored| Specification | WIX WL10255MP | Donaldson P550965 |
|---|---|---|
| Thread size | M22x1.5 | M22x1.5 |
| Gasket OD | 69.62 mm | 71 mm |
| Gasket ID | 62.43 mm | 61 mm |
| Can OD | 74.19 mm | 93 mm |
| Height | 113.6 mm | 91 mm |
| Internal bypass valve | Yes | Yes |
| Bypass PSID | 14 | 12 - 17 |
| Anti-drainback valve | Yes | Yes |
What matters in this specific comparison
Thread size matches: both are M22x1.5.
Gasket OD differs by 1.4 mm (WIX WL10255MP: 69.62 mm, Donaldson P550965: 71 mm).
Gasket ID differs by 1.4 mm (WIX WL10255MP: 62.43 mm, Donaldson P550965: 61 mm).
WIX WL10255MP is 22.6 mm taller (WIX WL10255MP: 113.6 mm, Donaldson P550965: 91 mm) -- check clearance before substituting.
Can OD differs by 18.8 mm (WIX WL10255MP: 74.19 mm, Donaldson P550965: 93 mm).
Both open their bypass valve in a comparable range: WIX WL10255MP at 14-14 psi, Donaldson P550965 at 12-17 psi.
Open related filters
Before substituting, verify thread fit, gasket sealing dimensions, height clearance, bypass behavior, and anti-drainback requirements for your specific application.