Engine Parts for Ride-On Mowers

Conrods

Flywheels

Gaskets

Governor Springs

Intake Parts

Pistons

Push Rods

Ring Sets

Internal engine components for Briggs & Stratton motors fitted to ride-on mowers, covering side valve and overhead valve models from around 5HP through to 31 series twins. The range includes conrods, pistons, ring sets, flywheels, gaskets and gasket sets, intake manifolds, and flywheel pullers.

Parts are listed against specific Briggs & Stratton part numbers and engine series (for example 10-18HP side valve, 16 & 18HP twin cylinder, or 31 series OHV), so check your engine's model and part number before ordering. Gaskets and seals are common wear items behind hard starting, reduced power or smoke, and are generally cheaper to replace than running a full engine rebuild or replacement.

Frequently asked questions

How do I find the right part for my Briggs & Stratton engine?

Check the engine series and model number stamped on the motor (for example 31 series or 16HP twin cylinder) and match it against the part numbers listed, as parts are specific to engine series and horsepower range.

What usually causes hard starting or smoke from a ride-on mower engine?

Worn gaskets, a faulty flywheel or a worn ring set are common causes of hard starting, reduced power or excessive smoke.

Is it cheaper to rebuild or replace a ride-on mower engine?

Rebuilding is usually cheaper, since it lets you replace only the worn parts, such as rings, gaskets or conrods, rather than the whole engine.

What parts should I check first if the engine is losing power?

Start with gaskets for leaks, the ring set for wear, and the conrod and intake manifold, as these are the parts most often linked to power loss.