WIX 51372MP vs FRAM PH2: Oil Filter Compatibility

Compare WIX 51372MP and FRAM PH2 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

SAFEScore: 92

These filters may still be worth comparing, but thread fit, gasket sealing dimensions, height clearance, bypass behavior, and anti-drainback requirements should be reviewed before substitution.

  • 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 51372MP and FRAM PH2 specifications

Specification
WIX 51372MP
FRAM PH2
Thread sizeM22x1.5M22X1,5
Gasket OD71.98 mm71.1 mm
Gasket ID62.53 mm62.5 mm
Can OD93 mm92.862 mm
Height97.43 mm101.194 mm
Internal bypass valveYesYes
Bypass PSID13 - 1912
Anti-drainback valveYesYes

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.