Bosch 3330 vs NAPA Gold 1348: Oil Filter Compatibility
Compare Bosch 3330 and NAPA Gold 1348 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
Both use a 3/4-16 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.
Bosch 3330 and NAPA Gold 1348 specifications
How matching is scored| Specification | Bosch 3330 | NAPA Gold 1348 |
|---|---|---|
| Thread size | 3/4-16 | 3/4-16 |
| Gasket OD | 71 mm | 69.4 mm |
| Gasket ID | 62 mm | 61.7 mm |
| Can OD | 75.69 mm | 74.19 mm |
| Height | 85.34 mm | 86.46 mm |
| Internal bypass valve | Yes | Yes |
| Bypass PSID | 12 - 15 | 13 - 19 |
| Anti-drainback valve | Yes | Yes |
What matters in this specific comparison
Thread size matches: both are 3/4-16.
Gasket OD differs by 1.6 mm (Bosch 3330: 71 mm, NAPA Gold 1348: 69.4 mm).
Gasket ID differs by 0.3 mm (Bosch 3330: 62 mm, NAPA Gold 1348: 61.7 mm).
NAPA Gold 1348 is 1.1 mm taller (Bosch 3330: 85.34 mm, NAPA Gold 1348: 86.46 mm) -- check clearance before substituting.
Can OD differs by 1.5 mm (Bosch 3330: 75.69 mm, NAPA Gold 1348: 74.19 mm).
Both open their bypass valve in a comparable range: Bosch 3330 at 12-15 psi, NAPA Gold 1348 at 13-19 psi.
Open related filters
Before substituting, verify thread fit, gasket sealing dimensions, height clearance, bypass behavior, and anti-drainback requirements for your specific application.