5
Bypass present on both, PSI unknown on one or both
Compare NAPA Gold 1581 against compatible oil filters from other brands. Review thread size, gasket dimensions, height, valve behavior, and fitment notes before substituting. This is a research tool, not an automatic guarantee of fitment.
Before substituting: verify filter style, thread size or cartridge dimensions, gasket dimensions, height and clearance, bypass behavior, and your engine or equipment requirements.
Select up to 4 filters, then click Compare to view their specs next to the searched filter. How matching is scored.
| Specification | Searched filter NAPA Gold 1581 Reference filter | WIX 51581Best Match SAFE | COMPATIBLE Candidate removes ADBV | COMPATIBLE Closest known dimensional difference: height -21.3 mm. Verify application-specific requirements before substituting. | COMPATIBLE Closest known dimensional difference: height -6.5 mm. Verify application-specific requirements before substituting. |
|---|---|---|---|---|---|
| Thread size | 13/16-16 | 13/16-16 | 13/16-16 | 13/16-16 | 13/16-16 |
| Gasket OD | 69 mm | 71.98 mm | 71.4 mm | 71.98 mm | 71 mm |
| Gasket ID | 62 mm | 62.53 mm | 62.7 mm | 62.53 mm | 61 mm |
| Can OD | 92.96 mm | 92.96 mm | 93.7 mm | 92.96 mm | 76 mm |
| Height | 131.5 mm | 131.5 mm | 136.5 mm | 110.2 mm | 125 mm |
| Internal bypass valve | Yes | Yes | Yes | Yes | Yes |
| Bypass PSID | 8 - 11 | 8 - 11 | 8 | 12 - 15 | 12 |
| Anti-drainback valve | Yes | Yes | No | Yes | Yes |
Sorted best-fit first. Dot rating summarizes relative fit without exposing the raw score. How matching is scored.