Nimiah Replacement Oil Seal 291675S for Briggs & Stratton Engines 251000-422000 (2 Pack)

Overview

The Nimiah Replacement Oil Seal 291675S is designed to fit Briggs & Stratton engines across the 251000, 252000, 401000, 421000, and 422000 series. This seal is built to replace several older part numbers and to support reliable sealing in typical lawn and garden engine applications. The result is a practical upgrade for maintenance and minor rebuilds where a precise, factory-style fit matters.

Engineered to suit common small-to-mid sized vertical engines, this seal aligns with engines in the 10–15 gross horsepower range (235,000 series 28 CID). The compact, purpose-built design helps ensure a snug seal in the critical oil path, contributing to smoother operation when installed as part of routine service.

Compatibility and what you get

• Replaces part numbers: 291675, 291675S, 49-047, 7-04056, 495-044
• Compatible engines: Briggs & Stratton 251000, 252000, 401000, 421000, 422000 series
• Engine type and reach: Fits most 10–15 HP vertical engines (235000 / 28 CID range)

• Seal size: 1-3/8" ID x 1-7/8" OD x 1/4" thick
• Material and fit: Precision-made to support proper sealing under typical operating conditions
• Practical upgrade: An approachable option for routine maintenance or rebuilds

Why choose Nimiah

Opting for the Nimiah oil seal means selecting a replacement that mirrors the intended geometry and tolerances of the original part. When installed with care, it can help maintain oil containment, support engine cleanliness, and contribute to steady performance during regular use in home or light-duty workshop settings.

Note that results depend on correct installation and overall engine condition. This description presents possibilities rather than guarantees, and proper service practices should be followed for best results.

Real-world use scenarios

• During routine maintenance when replacing worn seals on Briggs & Stratton vertical engines
• As part of a small engine rebuild or overhaul project in a home garage
• In projects involving compatible 251000–422000 series engines where a precise oil seal is needed

Installation tips

• Ensure the engine is cool and the area is clean before removing the old seal
• Check mating surfaces for damage and clean thoroughly prior to installation
• Install the new seal with proper orientation and use appropriate seating tools to avoid deformation