NAPA Gold 1516 vs WIX 51515MP: Oil Filter Compatibility
Compare NAPA Gold 1516 and WIX 51515MP 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.
NAPA Gold 1516 and WIX 51515MP specifications
How matching is scored| Specification | NAPA Gold 1516 | WIX 51515MP |
|---|---|---|
| Thread size | 3/4-16 | 3/4-16 |
| Gasket OD | 69 mm | 71.98 mm |
| Gasket ID | 62 mm | 62.53 mm |
| Can OD | 74.19 mm | 93 mm |
| Height | 122.6 mm | 132 mm |
| Internal bypass valve | Yes | Yes |
| Bypass PSID | 8 - 11 | 8 - 11 |
| Anti-drainback valve | Yes | Yes |
What matters in this specific comparison
Thread size matches: both are 3/4-16.
Gasket OD differs by 3 mm (NAPA Gold 1516: 69 mm, WIX 51515MP: 71.98 mm).
Gasket ID differs by 0.5 mm (NAPA Gold 1516: 62 mm, WIX 51515MP: 62.53 mm).
WIX 51515MP is 9.4 mm taller (NAPA Gold 1516: 122.6 mm, WIX 51515MP: 132 mm) -- check clearance before substituting.
Can OD differs by 18.8 mm (NAPA Gold 1516: 74.19 mm, WIX 51515MP: 93 mm).
Both open their bypass valve in a comparable range: NAPA Gold 1516 at 8-11 psi, WIX 51515MP at 8-11 psi.
Open related filters
Before substituting, verify thread fit, gasket sealing dimensions, height clearance, bypass behavior, and anti-drainback requirements for your specific application.