FRAM HPH8101 vs WIX 51673: Oil Filter Compatibility
Compare FRAM HPH8101 and WIX 51673 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 11/2-12 thread.
Quick verdict
Closest known dimensional difference: height -53 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 HPH8101 and WIX 51673 specifications
How matching is scored| Specification | FRAM HPH8101 | WIX 51673 |
|---|---|---|
| Thread size | 11/2-12 | 11/2-12 |
| Gasket OD | 111 mm | 109.7 mm |
| Gasket ID | 98 mm | 97.03 mm |
| Can OD | 118 mm | 118.2 mm |
| Height | 210 mm | 157 mm |
| Internal bypass valve | Yes | Yes |
| Bypass PSID | 12 | 8 - 11 |
| Anti-drainback valve | Yes | Yes |
What matters in this specific comparison
Thread size matches: both are 11/2-12.
Gasket OD differs by 1.3 mm (FRAM HPH8101: 111 mm, WIX 51673: 109.7 mm).
Gasket ID differs by 1 mm (FRAM HPH8101: 98 mm, WIX 51673: 97.03 mm).
FRAM HPH8101 is 53 mm taller (FRAM HPH8101: 210 mm, WIX 51673: 157 mm) -- check clearance before substituting.
Can OD differs by 0.2 mm (FRAM HPH8101: 118 mm, WIX 51673: 118.2 mm).
Both open their bypass valve in a comparable range: FRAM HPH8101 at 12-12 psi, WIX 51673 at 8-11 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.