Bosch 3312 vs Kubota 70000-74034: Oil Filter Compatibility

Compare Bosch 3312 and Kubota 70000-74034 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: 90

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.

Bosch 3312 and Kubota 70000-74034 specifications

Specification
Bosch 3312
Kubota 70000-74034
Thread sizeM20x1.5M20x1.5
Gasket OD63 mm64 mm
Gasket ID52 mm54 mm
Can OD80.01 mm76.2 mm
Height75.01 mm79.38 mm
Internal bypass valveYesYes
Bypass PSID12 - 1511 - 14
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.