Baldwin BD142 vs MAHLE OC 54: Oil Filter Compatibility
Compare Baldwin BD142 and MAHLE OC 54 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 1-12 thread.
Quick verdict
Candidate adds internal bypass; usually redundant with engine-mounted bypass
- 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.
Baldwin BD142 and MAHLE OC 54 specifications
How matching is scored| Specification | Baldwin BD142 | MAHLE OC 54 |
|---|---|---|
| Thread size | 1-12 | 1-12 |
| Gasket OD | 72 mm | 72 mm |
| Gasket ID | 61 mm | 62 mm |
| Can OD | 107.2 mm | 93.4 mm |
| Height | 130.2 mm | 137 mm |
| Internal bypass valve | No | Yes |
| Bypass PSID | Not applicable | 36 |
| Anti-drainback valve | Yes | Yes |
What matters in this specific comparison
Thread size matches: both are 1-12.
Gasket OD is identical at 72 mm.
Gasket ID differs by 1 mm (Baldwin BD142: 61 mm, MAHLE OC 54: 62 mm).
MAHLE OC 54 is 6.8 mm taller (Baldwin BD142: 130.2 mm, MAHLE OC 54: 137 mm) -- check clearance before substituting.
Can OD differs by 13.8 mm (Baldwin BD142: 107.2 mm, MAHLE OC 54: 93.4 mm).
Bypass valve presence differs: MAHLE OC 54 has one, Baldwin BD142 does not.
Open related filters
Before substituting, verify thread fit, gasket sealing dimensions, height clearance, bypass behavior, and anti-drainback requirements for your specific application.