WIX 51620 vs K&N HP-2002: Oil Filter Compatibility
Compare WIX 51620 and K&N HP-2002 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 13/16-16 thread.
Quick verdict
Bypass presence unknown on one or both filters · Candidate removes ADBV
- 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 51620 and K&N HP-2002 specifications
How matching is scored| Specification | WIX 51620 | K&N HP-2002 |
|---|---|---|
| Thread size | 13/16-16 | 13/16-16 |
| Gasket OD | 87.48 mm | 88 mm |
| Gasket ID | 78.74 mm | 79 mm |
| Can OD | 93.75 mm | 96 mm |
| Height | 132 mm | 117 mm |
| Internal bypass valve | Yes | Unknown |
| Bypass PSID | 8 - 11 | Unknown |
| Anti-drainback valve | Yes | No |
What matters in this specific comparison
Thread size matches: both are 13/16-16.
Gasket OD differs by 0.5 mm (WIX 51620: 87.48 mm, K&N HP-2002: 88 mm).
Gasket ID differs by 0.3 mm (WIX 51620: 78.74 mm, K&N HP-2002: 79 mm).
WIX 51620 is 15 mm taller (WIX 51620: 132 mm, K&N HP-2002: 117 mm) -- check clearance before substituting.
Can OD differs by 2.3 mm (WIX 51620: 93.75 mm, K&N HP-2002: 96 mm).
Anti-drainback valve differs: WIX 51620 has one, K&N HP-2002 does not.
Open related filters
Before substituting, verify thread fit, gasket sealing dimensions, height clearance, bypass behavior, and anti-drainback requirements for your specific application.