Briggs & Stratton Carburettor Gaskets
Keep your engine running smoothly with our comprehensive selection of carburettor gaskets for Briggs & Stratton engines. We stock complete carburetor gaskets including float bowl gaskets, mounting gaskets, insulator gaskets, and O-rings for small engine carburettor gaskets applications. Our inventory features paper, fibre, and rubber lawn mower carburettor gaskets in various configurations suitable for walk-behind mowers, riding equipment, and small engine applications. Whether you need individual Briggs & Stratton carburettor gaskets or complete rebuild kits with all necessary seals, we hold genuine manufacturer-approved Briggs & Stratton carburetor gaskets in stock and sell worldwide for leak-free performance.
Available Briggs & Stratton Carburettor Gaskets
Set, Carburetor Gasket
694931
Briggs & Stratton
£13.65
Available
Intake Gasket
794306
Briggs & Stratton
£4.80
In Stock
Engine Gasket Set
299577
Briggs & Stratton
£38.50
In Stock
Gasket Intake
272554S
Briggs & Stratton
£3.55
In Stock
Gasket Intake
270345S
Briggs & Stratton
£4.30
In Stock
Gasket Set Valve
796189
Briggs & Stratton
£58.80
In Stock
Gasket Intake
272199S
Briggs & Stratton
£4.05
In Stock
Gasket Air Cleaner
692087
Briggs & Stratton
£7.35
In Stock
Gasket Air Cleaner
272296
Briggs & Stratton
£3.45
In Stock
Gasket Float Bowl
694920
Briggs & Stratton
£8.50
In Stock
Gasket Crankcase
272124
Briggs & Stratton
£11.40
In Stock
Gasket Set
495992
Briggs & Stratton
£48.90
In Stock
Frequently Asked Questions
How do I know if my carburettor gasket is leaking petrol?
Petrol dripping from the bottom of the carburettor indicates a failed bowl gasket—the most common leak point. You'll often see fuel stains on the engine or smell petrol around the mower. A leaking bowl gasket also causes flooding, making the engine difficult to start or preventing it from running properly. Check for wet spots or fuel residue around where the bowl attaches to the carburettor body. Bowl gaskets dry out and crack over time, especially with ethanol fuel, so replacement every few years prevents leaks.
What symptoms suggest an air leak from a carburettor gasket?
The engine will idle roughly or race at high RPM when a mounting gasket leaks air. Hard starting, particularly when cold, is another telltale sign. The engine may hunt—revving up and down on its own—or hesitate and pop during acceleration. Air leaks create a lean fuel mixture that makes the engine run poorly and overheat. You might notice the idle speed screw won't adjust properly. Spraying carburettor cleaner around the base whilst running can confirm leaks—the engine speed will change when cleaner gets sucked into the leak.
Should I buy individual gaskets or a complete rebuild kit?
Purchase a complete rebuild kit when cleaning or rebuilding the carburettor—it's better value and ensures all gaskets are fresh. Kits include bowl gaskets, mounting gaskets, O-rings, and often needle valve components that wear together. If you're only replacing a leaking bowl gasket and the carburettor otherwise works perfectly, buying the individual gasket is fine. However, once you've dismantled the carburettor, fitting all new gaskets prevents having to repeat the work shortly after when another old gasket fails.
Can I reuse carburettor gaskets or make temporary repairs?
Never reuse carburettor gaskets—they're designed for single use and won't seal properly once removed. Attempting repairs with sealant or RTV causes serious problems as these materials break down in petrol and clog jets and passages, requiring complete carburettor cleaning. Paper and fibre gaskets compress permanently when tightened, so they won't create proper seals when reinstalled. Always have new gaskets ready before starting any carburettor work. The small cost of gaskets prevents expensive repairs caused by debris from failed temporary fixes.
Why does petrol leak after I've replaced the bowl gasket?
Check you've installed the gasket correctly—some designs have specific orientation or require placement in a groove. Over-tightening the bowl bolt crushes the gasket and prevents proper sealing, whilst under-tightening leaves gaps. The bowl mounting surface may be warped or damaged, preventing the gasket from sealing flat. Ensure the mating surfaces are completely clean—even tiny bits of old gasket or dirt prevent sealing. If leaks persist with a new gasket, the needle valve may be stuck open, overfilling the bowl and forcing petrol past even a good gasket.