FRAM P4637 vs WIX 57182MP: Oil Filter Compatibility
Compare FRAM P4637 and WIX 57182MP 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 11/8-16 thread.
Quick verdict
Closest known dimensional difference: height +12.3 mm. Verify application-specific requirements before substituting.
- 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.
FRAM P4637 and WIX 57182MP specifications
How matching is scored| Specification | FRAM P4637 | WIX 57182MP |
|---|---|---|
| Thread size | 1"1/8-16 | 11/8-16 |
| Gasket OD | 73 mm | 71.86 mm |
| Gasket ID | 63 mm | 62.46 mm |
| Can OD | 93 mm | 93.22 mm |
| Height | 164 mm | 176.3 mm |
| Internal bypass valve | Yes | Yes |
| Bypass PSID | 12 | 13 - 19 |
| Anti-drainback valve | Yes | Yes |
What matters in this specific comparison
Thread size matches: both are 11/8-16.
Gasket OD differs by 1.1 mm (FRAM P4637: 73 mm, WIX 57182MP: 71.86 mm).
Gasket ID differs by 0.5 mm (FRAM P4637: 63 mm, WIX 57182MP: 62.46 mm).
WIX 57182MP is 12.3 mm taller (FRAM P4637: 164 mm, WIX 57182MP: 176.3 mm) -- check clearance before substituting.
Can OD differs by 0.2 mm (FRAM P4637: 93 mm, WIX 57182MP: 93.22 mm).
Both open their bypass valve in a comparable range: FRAM P4637 at 12-12 psi, WIX 57182MP at 13-19 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.