Donaldson P551352 vs Baldwin BT371-MPG: Oil Filter Compatibility
Compare Donaldson P551352 and Baldwin BT371-MPG 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 11/2-16 thread.
Quick verdict
Both use a 11/2-16 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.
Donaldson P551352 and Baldwin BT371-MPG specifications
How matching is scored| Specification | Donaldson P551352 | Baldwin BT371-MPG |
|---|---|---|
| Thread size | 11/2-16 | 11/2-16 |
| Gasket OD | 71.4 mm | 71.4 mm |
| Gasket ID | 62.7 mm | 62.7 mm |
| Can OD | 94 mm | 96.8 mm |
| Height | 140 mm | 137.3 mm |
| Internal bypass valve | No | No |
| Bypass PSID | Not applicable | Not applicable |
| Anti-drainback valve | No | No |
What matters in this specific comparison
Thread size matches: both are 11/2-16.
Gasket OD is identical at 71.4 mm.
Gasket ID is identical at 62.7 mm.
Donaldson P551352 is 2.7 mm taller (Donaldson P551352: 140 mm, Baldwin BT371-MPG: 137.3 mm) -- check clearance before substituting.
Can OD differs by 2.8 mm (Donaldson P551352: 94 mm, Baldwin BT371-MPG: 96.8 mm).
Open related filters
Before substituting, verify thread fit, gasket sealing dimensions, height clearance, bypass behavior, and anti-drainback requirements for your specific application.