NAPA Gold 1100 vs NAPA Gold 1085: Oil Filter Compatibility
Compare NAPA Gold 1100 and NAPA Gold 1085 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
Candidate adds internal bypass; usually redundant with engine-mounted bypass · Candidate adds ADBV
- 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 1100 and NAPA Gold 1085 specifications
How matching is scored| Specification | NAPA Gold 1100 | NAPA Gold 1085 |
|---|---|---|
| Thread size | 3/4-16 | 3/4-16 |
| Gasket OD | 62 mm | 63 mm |
| Gasket ID | 56 mm | 55.1 mm |
| Can OD | 93 mm | 93 mm |
| Height | 131.5 mm | 97.43 mm |
| Internal bypass valve | No | Yes |
| Bypass PSID | Not applicable | 8 - 11 |
| Anti-drainback valve | No | Yes |
What matters in this specific comparison
Thread size matches: both are 3/4-16.
Gasket OD differs by 1 mm (NAPA Gold 1100: 62 mm, NAPA Gold 1085: 63 mm).
Gasket ID differs by 0.9 mm (NAPA Gold 1100: 56 mm, NAPA Gold 1085: 55.1 mm).
NAPA Gold 1100 is 34.1 mm taller (NAPA Gold 1100: 131.5 mm, NAPA Gold 1085: 97.43 mm) -- check clearance before substituting.
Can OD is identical at 93 mm.
Bypass valve presence differs: NAPA Gold 1085 has one, NAPA Gold 1100 does not.
Open related filters
Before substituting, verify thread fit, gasket sealing dimensions, height clearance, bypass behavior, and anti-drainback requirements for your specific application.