Briggs & Stratton Gaskets & Seals
Maintain leak-free performance with our complete range of gaskets and seals for Briggs & Stratton engines. We stock engine gaskets including head gaskets, valve cover gaskets, carburettor gaskets, and crankcase small engine seals for walk-behind and riding applications. Our inventory features genuine lawn mower engine gaskets in paper, metal composite, and rubber materials, plus complete gasket sets for engine rebuilds. Whether you need individual Briggs & Stratton gaskets or complete Briggs & Stratton engine seals kits with oil seals and O-rings, we hold manufacturer-approved components in stock and sell worldwide for reliable, oil-tight performance.
Available Briggs & Stratton Gaskets & Seals
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
Gasket Fuel Tank
272409S
Briggs & Stratton
£3.35
In Stock
Gasket Cylinder Head
592358
Briggs & Stratton
£8.55
In Stock
Frequently Asked Questions
What causes oil seals to fail on crankshafts?
Oil seals naturally wear over years of crankshaft rotation against the rubber lip. Operating in dusty conditions accelerates wear when dirt gets past damaged air filters. Overfilling the engine oil creates excessive crankcase pressure that forces oil past seals. A worn seal may cut a groove into the crankshaft, causing new seals to leak immediately. Always inspect the crankshaft surface when replacing seals—grooves require special repair sleeves or crankshaft replacement for lasting repairs.
Why does oil leak from my valve cover after replacing the gasket?
Improper installation is usually the culprit. Over-tightening cover bolts crushes the gasket excessively or warps the cover, preventing a proper seal. Under-tightening leaves gaps for oil to escape. Always tighten bolts gradually in a criss-cross pattern to the specified torque. Ensure mating surfaces are completely clean—even tiny bits of old gasket prevent sealing. If the valve cover itself is warped from previous over-tightening, it must be flattened or replaced for leak-free operation.
Can I reuse gaskets when taking the engine apart?
Never reuse gaskets once they've been removed—they're designed for single use only. Even if a gasket looks perfect, removing it breaks the seal and it won't reseal properly when reinstalled. This applies to all gaskets: head gaskets, valve covers, carburettors, and oil pans. Attempting to reuse old gaskets causes oil leaks and air leaks that affect engine performance. Always buy new gaskets before starting any engine disassembly work to avoid having to take everything apart twice.
How do I know if my head gasket has failed?
Watch for excessive oil consumption—needing to top up frequently between mowings. White or blue smoke from the exhaust indicates oil burning in the combustion chamber. The engine may lose power under load or become hard to start. Oil leaking around where the cylinder head meets the engine block is another telltale sign. If oil blows from the dipstick tube whilst running, the head gasket has likely failed and is pressurising the crankcase. Address these symptoms quickly to prevent expensive engine damage.
Should I use gasket sealant when fitting new gaskets?
Most gaskets install dry without any sealant—clean, flat surfaces create proper seals. Never use sealant on carburettor gaskets as it can squeeze into passages and block jets. Head gaskets always fit dry following manufacturer torque specifications. You may use a thin coat of grease or aviation sealant on cork valve cover gaskets to aid installation and prevent future sticking. If surfaces are damaged or warped, repair them properly rather than relying on sealant to fill gaps.