Baldwin B296 vs NAPA Gold 1051: Oil Filter Compatibility
Compare Baldwin B296 and NAPA Gold 1051 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 5/8-18 thread.
Quick verdict
Bypass presence unknown on one or both filters · ADBV unknown on one or both filters
- 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 B296 and NAPA Gold 1051 specifications
How matching is scored| Specification | Baldwin B296 | NAPA Gold 1051 |
|---|---|---|
| Thread size | 5/8-18 | 5/8-18 |
| Gasket OD | 71.4 mm | 70.1 mm |
| Gasket ID | 62.7 mm | 62.5 mm |
| Can OD | 93.7 mm | 92.96 mm |
| Height | 98.4 mm | 110.2 mm |
| Internal bypass valve | No | Unknown |
| Bypass PSID | Not applicable | Unknown |
| Anti-drainback valve | No | Unknown |
What matters in this specific comparison
Thread size matches: both are 5/8-18.
Gasket OD differs by 1.3 mm (Baldwin B296: 71.4 mm, NAPA Gold 1051: 70.1 mm).
Gasket ID differs by 0.2 mm (Baldwin B296: 62.7 mm, NAPA Gold 1051: 62.5 mm).
NAPA Gold 1051 is 11.8 mm taller (Baldwin B296: 98.4 mm, NAPA Gold 1051: 110.2 mm) -- check clearance before substituting.
Can OD differs by 0.7 mm (Baldwin B296: 93.7 mm, NAPA Gold 1051: 92.96 mm).
Open related filters
Before substituting, verify thread fit, gasket sealing dimensions, height clearance, bypass behavior, and anti-drainback requirements for your specific application.