Mobil 1 (ExxonMobil / Mann+Hummel) M1-103A vs WIX WL7503: Oil Filter Compatibility
Compare Mobil 1 (ExxonMobil / Mann+Hummel) M1-103A and WIX WL7503 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.
Mobil 1 (ExxonMobil / Mann+Hummel) M1-103A and WIX WL7503 specifications
How matching is scored| Specification | Mobil 1 (ExxonMobil / Mann+Hummel) M1-103A | WIX WL7503 |
|---|---|---|
| Thread size | 3/4-16 | 3/4-16 |
| Gasket OD | 70 mm | 70.99 mm |
| Gasket ID | 62 mm | 61.98 mm |
| Can OD | 68.33 mm | 77 mm |
| Height | 75.69 mm | 78 mm |
| Internal bypass valve | Yes | Yes |
| Bypass PSID | 8 - 11 | 14 |
| Anti-drainback valve | Yes | Yes |
What matters in this specific comparison
Thread size matches: both are 3/4-16.
Gasket OD differs by 1 mm (Mobil 1 (ExxonMobil / Mann+Hummel) M1-103A: 70 mm, WIX WL7503: 70.99 mm).
Gasket ID is identical at 62 mm.
WIX WL7503 is 2.3 mm taller (Mobil 1 (ExxonMobil / Mann+Hummel) M1-103A: 75.69 mm, WIX WL7503: 78 mm) -- check clearance before substituting.
Can OD differs by 8.7 mm (Mobil 1 (ExxonMobil / Mann+Hummel) M1-103A: 68.33 mm, WIX WL7503: 77 mm).
Both open their bypass valve in a comparable range: Mobil 1 (ExxonMobil / Mann+Hummel) M1-103A at 8-11 psi, WIX WL7503 at 14-14 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.