Baldwin B30 vs NAPA Gold 1045: Oil Filter Compatibility
Compare Baldwin B30 and NAPA Gold 1045 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 13/16-16 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 B30 and NAPA Gold 1045 specifications
How matching is scored| Specification | Baldwin B30 | NAPA Gold 1045 |
|---|---|---|
| Thread size | 13/16-16 | 13/16-16 |
| Gasket OD | 69.9 mm | 70.1 mm |
| Gasket ID | 60.9 mm | 62.5 mm |
| Can OD | 76.2 mm | 74.19 mm |
| Height | 130.2 mm | 122.6 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 13/16-16.
Gasket OD differs by 0.2 mm (Baldwin B30: 69.9 mm, NAPA Gold 1045: 70.1 mm).
Gasket ID differs by 1.6 mm (Baldwin B30: 60.9 mm, NAPA Gold 1045: 62.5 mm).
Baldwin B30 is 7.6 mm taller (Baldwin B30: 130.2 mm, NAPA Gold 1045: 122.6 mm) -- check clearance before substituting.
Can OD differs by 2 mm (Baldwin B30: 76.2 mm, NAPA Gold 1045: 74.19 mm).
Open related filters
Before substituting, verify thread fit, gasket sealing dimensions, height clearance, bypass behavior, and anti-drainback requirements for your specific application.