Bosch 3311 vs WIX 51394: Oil Filter Compatibility
Compare Bosch 3311 and WIX 51394 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 -13.7 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.
Bosch 3311 and WIX 51394 specifications
How matching is scored| Specification | Bosch 3311 | WIX 51394 |
|---|---|---|
| Thread size | 3/4-16 | 3/4-16 |
| Gasket OD | 63 mm | 62.87 mm |
| Gasket ID | 52 mm | 55.19 mm |
| Can OD | 68 mm | 68.3 mm |
| Height | 89.41 mm | 75.7 mm |
| Internal bypass valve | Yes | Yes |
| Bypass PSID | 14 - 18 | 13 - 19 |
| Anti-drainback valve | Yes | Yes |
What matters in this specific comparison
Thread size matches: both are 3/4-16.
Gasket OD differs by 0.1 mm (Bosch 3311: 63 mm, WIX 51394: 62.87 mm).
Gasket ID differs by 3.2 mm (Bosch 3311: 52 mm, WIX 51394: 55.19 mm).
Bosch 3311 is 13.7 mm taller (Bosch 3311: 89.41 mm, WIX 51394: 75.7 mm) -- check clearance before substituting.
Can OD differs by 0.3 mm (Bosch 3311: 68 mm, WIX 51394: 68.3 mm).
Both open their bypass valve in a comparable range: Bosch 3311 at 14-18 psi, WIX 51394 at 13-19 psi.
Open related filters
Before substituting, verify thread fit, gasket sealing dimensions, height clearance, bypass behavior, and anti-drainback requirements for your specific application.