NAPA Gold 1393 vs Mobil 1 (ExxonMobil / Mann+Hummel) M1-209A: Oil Filter Compatibility

Compare NAPA Gold 1393 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.

NAPA Gold 1393 and Mobil 1 (ExxonMobil / Mann+Hummel) M1-209A specifications

How matching is scored

Specification	NAPA Gold 1393 View on Amazon	Mobil 1 (ExxonMobil / Mann+Hummel) M1-209A View on Amazon
Thread size	3/4-16	3/4-16
Gasket OD	69 mm	71 mm
Gasket ID	62 mm	62 mm
Can OD	76.7 mm	74.19 mm
Height	122 mm	120.65 mm
Internal bypass valve	Yes	Yes
Bypass PSID	13 - 19	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 2 mm (NAPA Gold 1393: 69 mm, Mobil 1 (ExxonMobil / Mann+Hummel) M1-209A: 71 mm).

Gasket ID is identical at 62 mm.

NAPA Gold 1393 is 1.3 mm taller (NAPA Gold 1393: 122 mm, Mobil 1 (ExxonMobil / Mann+Hummel) M1-209A: 120.65 mm) -- check clearance before substituting.

Can OD differs by 2.5 mm (NAPA Gold 1393: 76.7 mm, Mobil 1 (ExxonMobil / Mann+Hummel) M1-209A: 74.19 mm).

Both open their bypass valve in a comparable range: NAPA Gold 1393 at 13-19 psi, Mobil 1 (ExxonMobil / Mann+Hummel) M1-209A at 8-11 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.