K&N HP-2009 vs Bosch 3500: Oil Filter Compatibility
Compare K&N HP-2009 and Bosch 3500 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
Closest known dimensional difference: height -0.4 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.
K&N HP-2009 and Bosch 3500 specifications
How matching is scored| Specification | K&N HP-2009 | Bosch 3500 |
|---|---|---|
| Thread size | 3/4-16 | 3/4-16 |
| Gasket OD | 63 mm | 63 mm |
| Gasket ID | 52 mm | 52 mm |
| Can OD | 76 mm | 92 mm |
| Height | 131 mm | 130.56 mm |
| Internal bypass valve | Yes | Yes |
| Bypass PSID | 8 - 11 | 8 - 16 |
| Anti-drainback valve | Yes | Yes |
What matters in this specific comparison
Thread size matches: both are 3/4-16.
Gasket OD is identical at 63 mm.
Gasket ID is identical at 52 mm.
K&N HP-2009 is 0.4 mm taller (K&N HP-2009: 131 mm, Bosch 3500: 130.56 mm) -- check clearance before substituting.
Can OD differs by 16 mm (K&N HP-2009: 76 mm, Bosch 3500: 92 mm).
Both open their bypass valve in a comparable range: K&N HP-2009 at 8-11 psi, Bosch 3500 at 8-16 psi.
Open related filters
Before substituting, verify thread fit, gasket sealing dimensions, height clearance, bypass behavior, and anti-drainback requirements for your specific application.