MANN-FILTER W 940/27 vs Donaldson P551042: Oil Filter Compatibility
Compare MANN-FILTER W 940/27 and Donaldson P551042 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.
MANN-FILTER W 940/27 and Donaldson P551042 specifications
How matching is scored| Specification | MANN-FILTER W 940/27 | Donaldson P551042 |
|---|---|---|
| Thread size | 3/4-16 | 3/4-16 |
| Gasket OD | 71.5 mm | 72 mm |
| Gasket ID | 62.5 mm | 62 mm |
| Can OD | 93.47 mm | 93 mm |
| Height | 95 mm | 93 mm |
| Internal bypass valve | Unknown | Yes |
| Bypass PSID | Unknown | 20 - 28 |
| 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 940/27: 71.5 mm, Donaldson P551042: 72 mm).
Gasket ID differs by 0.5 mm (MANN-FILTER W 940/27: 62.5 mm, Donaldson P551042: 62 mm).
MANN-FILTER W 940/27 is 2 mm taller (MANN-FILTER W 940/27: 95 mm, Donaldson P551042: 93 mm) -- check clearance before substituting.
Can OD differs by 0.5 mm (MANN-FILTER W 940/27: 93.47 mm, Donaldson P551042: 93 mm).
Open related filters
Before substituting, verify thread fit, gasket sealing dimensions, height clearance, bypass behavior, and anti-drainback requirements for your specific application.