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YAMAHA YZ125 2021

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Guaranteed to fit Exact year selected

Browse parts for your YAMAHA YZ125 2021. Find maintenance essentials and replacement parts matched to your selected bike, or filter by part type to find what you need.

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REAR SHOCK BEARING KIT (UPPER)
£28.37
A small bearing with a big say in how the rear end feels.
REAR SHOCK HEAD SEAL KIT
£51.93
Stops a small leak becoming a shock that needs a full rebuild.
COOLANT HOSE KIT
£78.77
Don't let a cracked hose cook the engine you just rebuilt.
SPROCKET BOLT SET
£11.70
Small bolts holding together a lot of power.
STEERING BEARING KIT
£41.77
Smooth, confident steering starts at the head bearings.
SPROCKET
£16.16
Never replace just one part of the drivetrain - it wrecks the rest fast.
SPROCKET
£38.48
Never replace just one part of the drivetrain - it wrecks the rest fast.
SPROCKET
£65.80
Never replace just one part of the drivetrain - it wrecks the rest fast.
HANDGUARDS
WAS £34.99 £25.00
Cheap protection for the parts you use every second of every ride.
PISTON KIT
£104.95
Restore your power in an afternoon.
SMALL END BEARING
£17.75
A small part that keeps the piston moving exactly as it should.
REED VALVE SYSTEM
£172.00
Instant throttle response, straight off the bottom.
CYLINDER HEAD
£285.35
The part that decides how efficiently every explosion happens.
CYLINDER HEAD INSERT
£65.45
Rescues a cylinder head that looked beyond saving.
O-RING KIT
£11.99
The part that decides how efficiently every explosion happens.
WATER PUMP KIT
£40.08
Don't cook your top-end rebuild - fix cooling first.
WHEEL BEARING KIT
£29.50
Smooth-running wheels are the foundation of confident handling.
WHEEL BEARING KIT
£34.42
Smooth-running wheels are the foundation of confident handling.
WHEEL SPACER KIT (FRONT)
£29.62
A small spacer with a big say in front wheel feel.
WHEEL SPACER KIT (REAR)
£32.69
A small spacer with a big say in rear wheel feel.
COMPLETE ENGINE REBUILD
£546.00
The kit serious rebuilders reach for first.
REAR SILENCER
£204.75
Frees up the power the rest of your build is chasing.
TRANSMISSION BEARING KIT
WAS £129.00 £109.00
The bearings that keep every gear change precise and quiet.
GASKET SET (TOP END)
£31.87
The seal that makes sure the rest of the job holds.
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