WIX WL7098 vs MAHLE OC 981: Oil Filter Compatibility
Compare WIX WL7098 and MAHLE OC 981 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.
WIX WL7098 and MAHLE OC 981 specifications
How matching is scored| Specification | WIX WL7098 | MAHLE OC 981 |
|---|---|---|
| Thread size | 3/4-16 | 3/4-16 |
| Gasket OD | 69.85 mm | 72 mm |
| Gasket ID | 61.98 mm | 62 mm |
| Can OD | 76.96 mm | 76.2 mm |
| Height | 84.99 mm | 89.66 mm |
| Internal bypass valve | Yes | Yes |
| Bypass PSID | 14 | 18 |
| Anti-drainback valve | Yes | Yes |
What matters in this specific comparison
Thread size matches: both are 3/4-16.
Gasket OD differs by 2.2 mm (WIX WL7098: 69.85 mm, MAHLE OC 981: 72 mm).
Gasket ID is identical at 61.98 mm.
MAHLE OC 981 is 4.7 mm taller (WIX WL7098: 84.99 mm, MAHLE OC 981: 89.66 mm) -- check clearance before substituting.
Can OD differs by 0.8 mm (WIX WL7098: 76.96 mm, MAHLE OC 981: 76.2 mm).
Both open their bypass valve in a comparable range: WIX WL7098 at 14-14 psi, MAHLE OC 981 at 18-18 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.