WIX 57251 vs MAHLE OC 32: Oil Filter Compatibility
Compare WIX 57251 and MAHLE OC 32 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 1-12 thread.
Quick verdict
Large bypass PSI mismatch: 21 psi
- 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 57251 and MAHLE OC 32 specifications
How matching is scored| Specification | WIX 57251 | MAHLE OC 32 |
|---|---|---|
| Thread size | 1-12 | 1-12 |
| Gasket OD | 72.01 mm | 72 mm |
| Gasket ID | 61.85 mm | 62.5 mm |
| Can OD | 93.73 mm | 93 mm |
| Height | 206.5 mm | 209 mm |
| Internal bypass valve | Yes | Yes |
| Bypass PSID | 50 | 29 |
| Anti-drainback valve | Yes | Yes |
What matters in this specific comparison
Thread size matches: both are 1-12.
Gasket OD is identical at 72.01 mm.
Gasket ID differs by 0.6 mm (WIX 57251: 61.85 mm, MAHLE OC 32: 62.5 mm).
MAHLE OC 32 is 2.5 mm taller (WIX 57251: 206.5 mm, MAHLE OC 32: 209 mm) -- check clearance before substituting.
Can OD differs by 0.7 mm (WIX 57251: 93.73 mm, MAHLE OC 32: 93 mm).
Both open their bypass valve in a comparable range: WIX 57251 at 50-50 psi, MAHLE OC 32 at 29-29 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.