MAHLE OC 47 vs K&N HP-2005: Oil Filter Compatibility
Compare MAHLE OC 47 and K&N HP-2005 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
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.
MAHLE OC 47 and K&N HP-2005 specifications
How matching is scored| Specification | MAHLE OC 47 | K&N HP-2005 |
|---|---|---|
| Thread size | 3/4-16 | 3/4-16 |
| Gasket OD | 72 mm | 71 mm |
| Gasket ID | 62 mm | 62 mm |
| Can OD | 76 mm | 76 mm |
| Height | 119.5 mm | 131 mm |
| Internal bypass valve | Yes | Yes |
| Bypass PSID | 32 | 27 - 35 |
| Anti-drainback valve | Yes | Yes |
What matters in this specific comparison
Thread size matches: both are 3/4-16.
Gasket OD differs by 1 mm (MAHLE OC 47: 72 mm, K&N HP-2005: 71 mm).
Gasket ID is identical at 62 mm.
K&N HP-2005 is 11.5 mm taller (MAHLE OC 47: 119.5 mm, K&N HP-2005: 131 mm) -- check clearance before substituting.
Can OD is identical at 76 mm.
Both open their bypass valve in a comparable range: MAHLE OC 47 at 32-32 psi, K&N HP-2005 at 27-35 psi.
Open related filters
Before substituting, verify thread fit, gasket sealing dimensions, height clearance, bypass behavior, and anti-drainback requirements for your specific application.