MAHLE OC 49 vs Baldwin B113: Oil Filter Compatibility

Compare MAHLE OC 49 and Baldwin B113 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.

Quick verdict

COMPATIBLEScore: 82

Large gasket OD variation · Large gasket ID variation

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.

MAHLE OC 49 and Baldwin B113 specifications

Specification	MAHLE OC 49	Baldwin B113 View on Amazon
Thread size	3/4-16	3/4-16
Gasket OD	72 mm	71.98 mm
Gasket ID	62 mm	62.53 mm
Can OD	77.47 mm	77 mm
Height	116.08 mm	103.2 mm
Internal bypass valve	Yes	No
Bypass PSID	32	Unknown
Anti-drainback valve	Yes	Yes

What matters most in this comparison?

Thread match: A direct spin-on substitute starts with the same thread size. If the threads differ, the comparison stops there.

Gasket fit: Even when thread size matches, the gasket outside diameter and inside diameter still control whether the filter seals safely against the mounting surface.

Height difference: Small height differences may be acceptable, but longer filters can create clearance problems in tighter installations.

Valve behavior: Bypass and anti-drainback differences can matter in real-world service, especially on cold start or in applications sensitive to oil drain-back.

Related filter pages

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