WIX 51775 vs Mobil 1 (ExxonMobil / Mann+Hummel) M1-209A: Oil Filter Compatibility

Compare WIX 51775 and Mobil 1 (ExxonMobil / Mann+Hummel) M1-209A 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

RISKY

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 51775 and Mobil 1 (ExxonMobil / Mann+Hummel) M1-209A specifications

How matching is scored

Specification	WIX 51775 View on Amazon	Mobil 1 (ExxonMobil / Mann+Hummel) M1-209A View on Amazon
Thread size	3/4-16	3/4-16
Gasket OD	71.98 mm	71 mm
Gasket ID	62.53 mm	62 mm
Can OD	92.96 mm	74.19 mm
Height	131.5 mm	120.65 mm
Internal bypass valve	Yes	Yes
Bypass PSID	8 - 11	8 - 11
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 (WIX 51775: 71.98 mm, Mobil 1 (ExxonMobil / Mann+Hummel) M1-209A: 71 mm).

Gasket ID differs by 0.5 mm (WIX 51775: 62.53 mm, Mobil 1 (ExxonMobil / Mann+Hummel) M1-209A: 62 mm).

WIX 51775 is 10.8 mm taller (WIX 51775: 131.5 mm, Mobil 1 (ExxonMobil / Mann+Hummel) M1-209A: 120.65 mm) -- check clearance before substituting.

Can OD differs by 18.8 mm (WIX 51775: 92.96 mm, Mobil 1 (ExxonMobil / Mann+Hummel) M1-209A: 74.19 mm).

Both open their bypass valve in a comparable range: WIX 51775 at 8-11 psi, Mobil 1 (ExxonMobil / Mann+Hummel) M1-209A at 8-11 psi.

Open related filters

Before substituting, verify thread fit, gasket sealing dimensions, height clearance, bypass behavior, and anti-drainback requirements for your specific application.