Briggs & Stratton Mufflers & Exhausts
Briggs & Stratton mufflers and exhausts are critical noise reduction and emission control components for small engines. Our comprehensive selection includes lawn mower muffler assemblies, engine exhaust systems, small engine muffler replacements, Briggs & Stratton muffler units, and Briggs & Stratton exhaust components including manifolds, gaskets, and mounting hardware. These genuine OEM parts reduce engine noise, filter exhaust gases, and maintain proper back pressure for optimal performance. Available for push mowers, riding tractors, generators, pressure washers, and all Briggs & Stratton engine applications in vertical and horizontal shaft configurations. We hold stock worldwide.
Available Briggs & Stratton Mufflers & Exhausts
Muffler
692307
Briggs & Stratton
£21.65
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Muffler
692038
Briggs & Stratton
£22.30
In Stock
Muffler Guard
593875
Briggs & Stratton
£28.50
In Stock
Muffler
692304
Briggs & Stratton
£35.75
In Stock
Deflector Muffler
795036
Briggs & Stratton
£8.45
In Stock
Guard Muffler
790743
Briggs & Stratton
£24.20
In Stock
Deflector Muffler
795038
Briggs & Stratton
£11.00
In Stock
Muffler
591018
Briggs & Stratton
£73.60
In Stock
Muffler
796000
Briggs & Stratton
£46.15
In Stock
Deflector Muffler
796956
Briggs & Stratton
£6.70
In Stock
Exhaust Muffler
795997
Briggs & Stratton
£92.55
In Stock
Muffler
394569S
Briggs & Stratton
£13.60
In Stock
Frequently Asked Questions
What's the correct procedure for installing a new muffler?
Always work on a completely cool engine with the spark plug disconnected. For bolt-mounted mufflers, bend back locking tabs, remove mounting bolts, and detach the old unit. Apply anti-seize compound to new mounting bolt threads before installation. Position the new muffler ensuring any thermostat arms align correctly with air vane hooks. Torque mounting bolts to 7.5 foot-pounds using a torque wrench—avoid over-tightening. Bend locking tabs back against bolt heads to prevent loosening. For threaded pipe mufflers, use slip-joint pliers to unscrew counterclockwise, then hand-thread the new muffler clockwise until snug.
Can I remove a seized or rusted muffler without damaging the engine?
Heat the engine by running it briefly under load, then immediately attempt removal with a pipe wrench on the threaded section while still warm. Soak the connection for several days with penetrating oil if cold removal fails. For extremely seized mufflers, carefully tap the lock ring counterclockwise with a hammer and punch, or use a cold chisel to crack it for removal. If the muffler breaks during removal leaving threads in the block, grasp the remaining pipe with locking pliers and unscrew. Very rusty mufflers may collapse—this is acceptable provided you don't damage engine threads.
Why is my engine suddenly much louder after the muffler was serviced?
Check that all muffler mounting bolts are properly tightened—loose connections cause exhaust leaks and excessive noise. Verify the exhaust gasket was replaced during installation as deteriorated gaskets allow gas escape. Ensure any thermostat components behind the muffler are correctly repositioned and aligned with their linkages—improper alignment affects both starting and sound. Confirm the new muffler matches original specifications as incorrect sizing changes back pressure and noise levels. Internal baffles must be intact—damaged internals from shipping or installation eliminate noise suppression effectiveness.
How can I prevent rust and extend my muffler's lifespan?
Clean grass clippings and debris from the muffler exterior after each use as accumulated material traps moisture promoting rust formation. Store equipment in dry, covered locations protecting exhaust components from rain and humidity. Consider applying high-temperature exhaust paint designed for temperatures exceeding 1200°F to slow surface oxidation. Brush the area regularly to prevent dried grass from igniting on hot surfaces. Run the engine periodically during storage to burn off internal moisture. Despite preventive measures, mufflers naturally rust from heat cycles and combustion byproducts—replacement every few seasons maintains optimal performance and noise control.
How do I know when my muffler needs replacing?
Remove the cold muffler and shake it—excessive rattling or debris indicates internal deterioration requiring replacement. Inspect the exterior for rust, holes, cracks, or dents restricting exhaust flow. Listen for sudden increases in engine noise levels compared to normal operation. Check for visible smoke or soot accumulation around exhaust connections. Mufflers typically deteriorate after 2-3 seasons of regular use from heat exposure and moisture. If tapping the muffler releases large quantities of internal soot that won't dislodge, replacement is necessary for proper performance and noise reduction.