5
Strong dimensional fit. Verify application-specific requirements before substituting.
WIX 51581 oil filter matches
Compare WIX 51581 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.
Best equivalent matches
Select up to 4 filters, then click Compare to view their specs next to the searched filter. How matching is scored.
18 compatible options
| Specification | Searched filter WIX 51581 Reference filter | NAPA Gold 1581Best Match SAFE | SAFE | COMPATIBLE Strong dimensional fit. Verify application-specific requirements before substituting. | COMPATIBLE Strong dimensional fit. 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 | 71.98 mm | 69 mm | 71.4 mm | 71.98 mm | 72.64 mm |
| Gasket ID | 62.53 mm | 62 mm | 62.7 mm | 62.53 mm | 62.36 mm |
| Can OD | 92.96 mm | 92.96 mm | 93.7 mm | 92.96 mm | 74.9 mm |
| Height | 131.5 mm | 131.5 mm | 136.5 mm | 110.2 mm | 110 mm |
| Internal bypass valve | Yes | Yes | Yes | Yes | Yes |
| Bypass PSID | 8 - 11 | 8 - 11 | 8 | 12 - 15 | 8 - 11 |
| Anti-drainback valve | Yes | Yes | No | Yes | Yes |
Other suitable matches
Sorted best-fit first. Dot rating summarizes relative fit without exposing the raw score.
6
Strong dimensional fit. Verify application-specific requirements before substituting.
7
Strong dimensional fit. Verify application-specific requirements before substituting.
8
Strong dimensional fit. Verify application-specific requirements before substituting.
9
Strong dimensional fit. Verify application-specific requirements before substituting.
10
Large bypass PSI mismatch: 12.5 psi
11
Large bypass PSI mismatch: 10.5 psi · Candidate removes ADBV
12
Large bypass PSI mismatch: 6.5 psi
13
Large bypass PSI mismatch: 6.5 psi
14
Large bypass PSI mismatch: 6.5 psi
15
Bypass presence unknown on one or both filters
16
Bypass presence unknown on one or both filters
17
Bypass presence unknown on one or both filters · ADBV unknown on one or both filters
18
Bypass presence unknown on one or both filters · ADBV unknown on one or both filters