Donaldson P559128 vs WIX 51268: Oil Filter Compatibility
Compare Donaldson P559128 and WIX 51268 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 11/8-16 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.
Donaldson P559128 and WIX 51268 specifications
How matching is scored| Specification | Donaldson P559128 | WIX 51268 |
|---|---|---|
| Thread size | 11/8-16 | 11/8-16 |
| Gasket OD | 72 mm | 69.32 mm |
| Gasket ID | 62 mm | 61.34 mm |
| Can OD | 107 mm | 93.75 mm |
| Height | 147 mm | 132.5 mm |
| Internal bypass valve | No | Yes |
| Bypass PSID | Not applicable | Unknown |
| Anti-drainback valve | No | Yes |
What matters in this specific comparison
Thread size matches: both are 11/8-16.
Gasket OD differs by 2.7 mm (Donaldson P559128: 72 mm, WIX 51268: 69.32 mm).
Gasket ID differs by 0.7 mm (Donaldson P559128: 62 mm, WIX 51268: 61.34 mm).
Donaldson P559128 is 14.5 mm taller (Donaldson P559128: 147 mm, WIX 51268: 132.5 mm) -- check clearance before substituting.
Can OD differs by 13.3 mm (Donaldson P559128: 107 mm, WIX 51268: 93.75 mm).
Bypass valve presence differs: WIX 51268 has one, Donaldson P559128 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.