Champ PH2815 vs Bosch 3500: Oil Filter Compatibility
Compare Champ PH2815 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
Large bypass PSI mismatch: 16 psi
- 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.
Champ PH2815 and Bosch 3500 specifications
How matching is scored| Specification | Champ PH2815 | Bosch 3500 |
|---|---|---|
| Thread size | 3/4-16 | 3/4-16 |
| Gasket OD | 63 mm | 63 mm |
| Gasket ID | 52.1 mm | 52 mm |
| Can OD | 93.73 mm | 92 mm |
| Height | 136.65 mm | 130.56 mm |
| Internal bypass valve | Yes | Yes |
| Bypass PSID | 28 | 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 differs by 0.1 mm (Champ PH2815: 52.1 mm, Bosch 3500: 52 mm).
Champ PH2815 is 6.1 mm taller (Champ PH2815: 136.65 mm, Bosch 3500: 130.56 mm) -- check clearance before substituting.
Can OD differs by 1.7 mm (Champ PH2815: 93.73 mm, Bosch 3500: 92 mm).
Both open their bypass valve in a comparable range: Champ PH2815 at 28-28 psi, Bosch 3500 at 8-16 psi -- these ranges do not overlap.
Open related filters
Before substituting, verify thread fit, gasket sealing dimensions, height clearance, bypass behavior, and anti-drainback requirements for your specific application.