Baldwin B218 vs Baldwin BT347: Oil Filter Compatibility
Compare Baldwin B218 and Baldwin BT347 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 -78.6 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.
Baldwin B218 and Baldwin BT347 specifications
How matching is scored| Specification | Baldwin B218 | Baldwin BT347 |
|---|---|---|
| Thread size | 3/4-16 | 3/4-16 |
| Gasket OD | 71.4 mm | 71.4 mm |
| Gasket ID | 62.7 mm | 62.7 mm |
| Can OD | 108 mm | 108 mm |
| Height | 265.1 mm | 186.5 mm |
| Internal bypass valve | Yes | Yes |
| Bypass PSID | 30 | 30 |
| Anti-drainback valve | Yes | Yes |
What matters in this specific comparison
Thread size matches: both are 3/4-16.
Gasket OD is identical at 71.4 mm.
Gasket ID is identical at 62.7 mm.
Baldwin B218 is 78.6 mm taller (Baldwin B218: 265.1 mm, Baldwin BT347: 186.5 mm) -- check clearance before substituting.
Can OD is identical at 108 mm.
Both open their bypass valve in a comparable range: Baldwin B218 at 30-30 psi, Baldwin BT347 at 30-30 psi.
Open related filters
Before substituting, verify thread fit, gasket sealing dimensions, height clearance, bypass behavior, and anti-drainback requirements for your specific application.