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Bypass presence unknown on one or both filters
K&N HP-2004 oil filter matches
Compare K&N HP-2004 against compatible oil filters from other brands. Review thread size, gasket dimensions, height, valve behavior, and fitment notes before substituting. This is a research tool, not an automatic guarantee of fitment.
Before substituting: verify filter style, thread size or cartridge dimensions, gasket dimensions, height and clearance, bypass behavior, and your engine or equipment requirements.
Best equivalent matches
Select up to 4 filters, then click Compare to view their specs next to the searched filter. How matching is scored.
60 compatible options
| Specification | Searched filter K&N HP-2004 Reference filter | Champ PH400Best Match COMPATIBLE Bypass presence unknown on one or both filters | COMPATIBLE Bypass presence unknown on one or both filters | COMPATIBLE Bypass presence unknown on one or both filters | COMPATIBLE Bypass presence unknown on one or both filters |
|---|---|---|---|---|---|
| Thread size | 3/4-16 | 3/4-16 | 3/4-16 | 3/4-16 | 3/4-16 |
| Gasket OD | 71 mm | 70.1 mm | 70.4 mm | 70.1 mm | 70.36 mm |
| Gasket ID | 62 mm | 62.5 mm | 62.2 mm | 62.5 mm | 62.38 mm |
| Can OD | 93 mm | 93.73 mm | 93.73 mm | 93.73 mm | 93.04 mm |
| Height | 104 mm | 104.9 mm | 104.9 mm | 104.9 mm | 106.5 mm |
| Internal bypass valve | Unknown | Yes | Yes | No | Yes |
| Bypass PSID | Unknown | 14 | 15 | Not applicable | 30 |
| Anti-drainback valve | Yes | Yes | Yes | Yes | Yes |
Other suitable matches
Sorted best-fit first. Dot rating summarizes relative fit without exposing the raw score.
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