Donaldson P502015 vs WIX 51394: Oil Filter Compatibility
Compare Donaldson P502015 and WIX 51394 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 3/4-16 thread.
Quick verdict
Both use a 3/4-16 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.
Donaldson P502015 and WIX 51394 specifications
How matching is scored| Specification | Donaldson P502015 | WIX 51394 |
|---|---|---|
| Thread size | 3/4-16 | 3/4-16 |
| Gasket OD | 63.2 mm | 62.87 mm |
| Gasket ID | 55.5 mm | 55.19 mm |
| Can OD | 65 mm | 68.3 mm |
| Height | 74 mm | 75.7 mm |
| Internal bypass valve | Yes | Yes |
| Bypass PSID | 12 - 15 | 13 - 19 |
| Anti-drainback valve | Yes | Yes |
What matters in this specific comparison
Thread size matches: both are 3/4-16.
Gasket OD differs by 0.3 mm (Donaldson P502015: 63.2 mm, WIX 51394: 62.87 mm).
Gasket ID differs by 0.3 mm (Donaldson P502015: 55.5 mm, WIX 51394: 55.19 mm).
WIX 51394 is 1.7 mm taller (Donaldson P502015: 74 mm, WIX 51394: 75.7 mm) -- check clearance before substituting.
Can OD differs by 3.3 mm (Donaldson P502015: 65 mm, WIX 51394: 68.3 mm).
Both open their bypass valve in a comparable range: Donaldson P502015 at 12-15 psi, WIX 51394 at 13-19 psi.
Open related filters
Before substituting, verify thread fit, gasket sealing dimensions, height clearance, bypass behavior, and anti-drainback requirements for your specific application.