Donaldson P550335 vs Mobil 1 (ExxonMobil / Mann+Hummel) M1-103A: Oil Filter Compatibility
Compare Donaldson P550335 and Mobil 1 (ExxonMobil / Mann+Hummel) M1-103A 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
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 P550335 and Mobil 1 (ExxonMobil / Mann+Hummel) M1-103A specifications
How matching is scored| Specification | Donaldson P550335 | Mobil 1 (ExxonMobil / Mann+Hummel) M1-103A |
|---|---|---|
| Thread size | 3/4-16 | 3/4-16 |
| Gasket OD | 70 mm | 70 mm |
| Gasket ID | 60 mm | 62 mm |
| Can OD | 76 mm | 68.33 mm |
| Height | 86 mm | 75.69 mm |
| Internal bypass valve | No | Yes |
| Bypass PSID | Not applicable | 8 - 11 |
| Anti-drainback valve | No | Yes |
What matters in this specific comparison
Thread size matches: both are 3/4-16.
Gasket OD is identical at 70 mm.
Gasket ID differs by 2 mm (Donaldson P550335: 60 mm, Mobil 1 (ExxonMobil / Mann+Hummel) M1-103A: 62 mm).
Donaldson P550335 is 10.3 mm taller (Donaldson P550335: 86 mm, Mobil 1 (ExxonMobil / Mann+Hummel) M1-103A: 75.69 mm) -- check clearance before substituting.
Can OD differs by 7.7 mm (Donaldson P550335: 76 mm, Mobil 1 (ExxonMobil / Mann+Hummel) M1-103A: 68.33 mm).
Bypass valve presence differs: Mobil 1 (ExxonMobil / Mann+Hummel) M1-103A has one, Donaldson P550335 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.