WIX 51647 vs WIX 51191: Oil Filter Compatibility
Compare WIX 51647 and WIX 51191 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
SAFEMatch score: 94
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.
WIX 51647 and WIX 51191 specifications
How matching is scored| Specification | WIX 51647 | WIX 51191 |
|---|---|---|
| Thread size | 3/4-16 | 3/4-16 |
| Gasket OD | 71.98 mm | 71.98 mm |
| Gasket ID | 62.53 mm | 62.53 mm |
| Can OD | 92.96 mm | 92.96 mm |
| Height | 131.5 mm | 131.5 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 is identical at 71.98 mm.
Gasket ID is identical at 62.53 mm.
Height is identical at 131.5 mm.
Can OD is identical at 92.96 mm.
Both open their bypass valve in a comparable range: WIX 51647 at 12-15 psi, WIX 51191 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.