WIX 51971 vs Baldwin B495-MPG: Oil Filter Compatibility
Compare WIX 51971 and Baldwin B495-MPG 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 15/8-12 thread.
Quick verdict
Both use a 15/8-12 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 51971 and Baldwin B495-MPG specifications
How matching is scored| Specification | WIX 51971 | Baldwin B495-MPG |
|---|---|---|
| Thread size | 15/8-12 | 15/8-12 |
| Gasket OD | 109.7 mm | 110 mm |
| Gasket ID | 96.52 mm | 98 mm |
| Can OD | 118.3 mm | 118.3 mm |
| Height | 262.76 mm | 252.4 mm |
| Internal bypass valve | No | No |
| Bypass PSID | Not applicable | Not applicable |
| Anti-drainback valve | No | No |
What matters in this specific comparison
Thread size matches: both are 15/8-12.
Gasket OD differs by 0.3 mm (WIX 51971: 109.7 mm, Baldwin B495-MPG: 110 mm).
Gasket ID differs by 1.5 mm (WIX 51971: 96.52 mm, Baldwin B495-MPG: 98 mm).
WIX 51971 is 10.4 mm taller (WIX 51971: 262.76 mm, Baldwin B495-MPG: 252.4 mm) -- check clearance before substituting.
Can OD is identical at 118.3 mm.
Open related filters
Before substituting, verify thread fit, gasket sealing dimensions, height clearance, bypass behavior, and anti-drainback requirements for your specific application.