NAPA Gold 1049 vs Baldwin BT344-S: Oil Filter Compatibility
Compare NAPA Gold 1049 and Baldwin BT344-S 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.
NAPA Gold 1049 and Baldwin BT344-S specifications
How matching is scored| Specification | NAPA Gold 1049 | Baldwin BT344-S |
|---|---|---|
| Thread size | 13/16-16 | 13/16-16 |
| Gasket OD | 70.4 mm | 71.4 mm |
| Gasket ID | 62.2 mm | 62.7 mm |
| Can OD | 92.96 mm | 94.5 mm |
| Height | 131.5 mm | 113.5 mm |
| Internal bypass valve | Unknown | Yes |
| Bypass PSID | Unknown | 20 |
| Anti-drainback valve | Unknown | No |
What matters in this specific comparison
Thread size matches: both are 13/16-16.
Gasket OD differs by 1 mm (NAPA Gold 1049: 70.4 mm, Baldwin BT344-S: 71.4 mm).
Gasket ID differs by 0.5 mm (NAPA Gold 1049: 62.2 mm, Baldwin BT344-S: 62.7 mm).
NAPA Gold 1049 is 18 mm taller (NAPA Gold 1049: 131.5 mm, Baldwin BT344-S: 113.5 mm) -- check clearance before substituting.
Can OD differs by 1.5 mm (NAPA Gold 1049: 92.96 mm, Baldwin BT344-S: 94.5 mm).
Open related filters
Before substituting, verify thread fit, gasket sealing dimensions, height clearance, bypass behavior, and anti-drainback requirements for your specific application.