FRAM PH46 vs Champ PH3600: Oil Filter Compatibility
Compare FRAM PH46 and Champ PH3600 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.
FRAM PH46 and Champ PH3600 specifications
How matching is scored| Specification | FRAM PH46 | Champ PH3600 |
|---|---|---|
| Thread size | 3/4-16 | 3/4-16 |
| Gasket OD | 71.1 mm | 70.1 mm |
| Gasket ID | 62.5 mm | 62.5 mm |
| Can OD | 93.7 mm | 77.72 mm |
| Height | 137.4 mm | 122.94 mm |
| Internal bypass valve | Yes | Yes |
| Bypass PSID | 12 | 12 |
| 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 (FRAM PH46: 71.1 mm, Champ PH3600: 70.1 mm).
Gasket ID is identical at 62.5 mm.
FRAM PH46 is 14.5 mm taller (FRAM PH46: 137.4 mm, Champ PH3600: 122.94 mm) -- check clearance before substituting.
Can OD differs by 16 mm (FRAM PH46: 93.7 mm, Champ PH3600: 77.72 mm).
Both open their bypass valve in a comparable range: FRAM PH46 at 12-12 psi, Champ PH3600 at 12-12 psi.
Open related filters
Before substituting, verify thread fit, gasket sealing dimensions, height clearance, bypass behavior, and anti-drainback requirements for your specific application.