MANN-FILTER W 930/21 vs MAHLE OC 49: Oil Filter Compatibility
Compare MANN-FILTER W 930/21 and MAHLE OC 49 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 +2.4 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.
MANN-FILTER W 930/21 and MAHLE OC 49 specifications
How matching is scored| Specification | MANN-FILTER W 930/21 | MAHLE OC 49 |
|---|---|---|
| Thread size | 3/4-16 | 3/4-16 |
| Gasket OD | 71.5 mm | 72 mm |
| Gasket ID | 62.5 mm | 62 mm |
| Can OD | 94.52 mm | 77.47 mm |
| Height | 113.67 mm | 116.08 mm |
| Internal bypass valve | Yes | Yes |
| Bypass PSID | 33 | 32 |
| Anti-drainback valve | Yes | Yes |
What matters in this specific comparison
Thread size matches: both are 3/4-16.
Gasket OD differs by 0.5 mm (MANN-FILTER W 930/21: 71.5 mm, MAHLE OC 49: 72 mm).
Gasket ID differs by 0.5 mm (MANN-FILTER W 930/21: 62.5 mm, MAHLE OC 49: 62 mm).
MAHLE OC 49 is 2.4 mm taller (MANN-FILTER W 930/21: 113.67 mm, MAHLE OC 49: 116.08 mm) -- check clearance before substituting.
Can OD differs by 17 mm (MANN-FILTER W 930/21: 94.52 mm, MAHLE OC 49: 77.47 mm).
Both open their bypass valve in a comparable range: MANN-FILTER W 930/21 at 33-33 psi, MAHLE OC 49 at 32-32 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.