Briggs Stratton 261409 Muffler Locknut

Product Description

The BRIGGS STRATTON 261409 is a muffler locknut designed to secure the muffler assembly on small gasoline engines. This fastener maintains a tight connection between the muffler and the engine block, resisting vibration and heat that are common during normal engine operation. It is a direct OEM replacement part sourced from Briggs and Stratton, a manufacturer of small engines used across lawn and garden power equipment. Technicians and equipment service professionals rely on OEM fasteners like this one to maintain proper torque retention and exhaust sealing over the service life of the engine.

This locknut is suited for use in lawn and garden equipment applications where Briggs and Stratton engines are installed. Typical use cases include walk-behind lawn mowers, riding mowers, and other outdoor power equipment powered by Briggs and Stratton small engines. It is intended for replacement during muffler service, exhaust system repair, or any maintenance procedure that requires removal and reinstallation of the muffler.

Key Features

• OEM Briggs and Stratton replacement part for muffler mounting
• Designed to resist loosening under engine vibration and heat cycles
• Direct fitment as a factory-spec fastener for small engine exhaust systems
• Supports proper muffler seating and exhaust containment

Compatibility

Designed as an OEM-style replacement muffler locknut for Briggs and Stratton small engines used in lawn and garden power equipment applications.

Installation Notes

Installation should be performed by a qualified small engine technician or experienced service professional. Allow the engine to cool completely before removing or installing exhaust components to avoid burns. Disable the ignition and disconnect the spark plug wire before beginning any service work on the exhaust system. Follow the equipment manufacturer's service manual for proper fastener seating and exhaust assembly procedures.

Technical Specifications

• Part Type: Muffler Locknut
• Application: Small Engine Exhaust System

Standard Information

• Brand: BRIGGS STRATTON
• Manufacturer Part Number: 261409