NAPA Gold 1085 vs Donaldson P502015: Oil Filter Compatibility
Compare NAPA Gold 1085 and Donaldson P502015 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 1085 and Donaldson P502015 specifications
How matching is scored| Specification | NAPA Gold 1085 | Donaldson P502015 |
|---|---|---|
| Thread size | 3/4-16 | 3/4-16 |
| Gasket OD | 63 mm | 63.2 mm |
| Gasket ID | 55.1 mm | 55.5 mm |
| Can OD | 93 mm | 65 mm |
| Height | 97.43 mm | 74 mm |
| Internal bypass valve | Yes | Yes |
| Bypass PSID | 8 - 11 | 12 - 15 |
| Anti-drainback valve | Yes | Yes |
What matters in this specific comparison
Thread size matches: both are 3/4-16.
Gasket OD differs by 0.2 mm (NAPA Gold 1085: 63 mm, Donaldson P502015: 63.2 mm).
Gasket ID differs by 0.4 mm (NAPA Gold 1085: 55.1 mm, Donaldson P502015: 55.5 mm).
NAPA Gold 1085 is 23.4 mm taller (NAPA Gold 1085: 97.43 mm, Donaldson P502015: 74 mm) -- check clearance before substituting.
Can OD differs by 28 mm (NAPA Gold 1085: 93 mm, Donaldson P502015: 65 mm).
Both open their bypass valve in a comparable range: NAPA Gold 1085 at 8-11 psi, Donaldson P502015 at 12-15 psi -- these ranges do not overlap.
Open related filters
Before substituting, verify thread fit, gasket sealing dimensions, height clearance, bypass behavior, and anti-drainback requirements for your specific application.