WISECO Racer Elite Forged Piston for KAWASAKI KX 65 and SUZUKI RM 65 2000-2026

WISECO offers this piston kit for KAWASAKI KX 65 and SUZUKI RM 65 2000-2026. The piston slides in the cylinder and takes the force of the air-fuel combustion, passing it to the connecting rod and crankshaft.

Why choose a forged piston?

Instead of simply being cast, a forged piston is hot-pressed under very high pressure and then machined: its metal is denser and free of air pockets.

• Stronger when hot: it copes better with high revs, overheating and detonation.
• Lighter for the same strength: less stress on the connecting rod and bearings.
• Good to know: depending on the alloy, it expands a little more and is fitted with more clearance; slight noise when cold is normal.
• Why does it cost more? Forging tools, full machining and surface treatments cost more than simple casting.

Why choose WISECO?

Wiseco has forged its pistons in Mentor (Ohio, USA) since 1941 and controls the whole process, from aluminium bar to the friction-reducing ArmorGlide skirt coating. Its pistons are developed with Team Honda HRC in Supercross (450 class since 2018).

When should you replace the piston on your KAWASAKI KX 65?

Harder starting, loss of power, blue smoke, oil consumption or a knock when cold: these are the signs of a tired top end.

No manufacturer hour figure for this model. Cross-Mania guideline: compression check every 15 h in hard use and every 30 h for leisure.

Specifications and fitting tips

• Size : 44.50 mm
• Manufacturer part number: WRE919M04450

Spare parts and items to plan

• Piston rings : WOSSNER · PROX
• Piston pin clips : WISECO · WOSSNER
• Top-end gasket kit : ATHENA · PROX
• Small end needle bearing : WOSSNER · ATHENA
• Spark plug : NGK 6801 · NGK 3830
• Coolant : LIQUI MOLY 1 L · TWIN AIR
• 2-stroke oil : LIQUI MOLY 1 L · MOTUL 1 L

Compatibility

Check the exact model and year of your bike in the list below before ordering.

Fits:
KAWASAKI KX 65 2026
KAWASAKI KX 65 2025
KAWASAKI KX 65 2024
KAWASAKI KX 65 2023
KAWASAKI KX 65 2022
KAWASAKI KX 65 2021
KAWASAKI KX 65 2020
KAWASAKI KX 65 2019
KAWASAKI KX 65 2018
KAWASAKI KX 65 2017
KAWASAKI KX 65 2016
KAWASAKI KX 65 2015
KAWASAKI KX 65 2014
KAWASAKI KX 65 2013
KAWASAKI KX 65 2012
KAWASAKI KX 65 2011
KAWASAKI KX 65 2010
KAWASAKI KX 65 2009
KAWASAKI KX 65 2008
KAWASAKI KX 65 2007
KAWASAKI KX 65 2006
KAWASAKI KX 65 2005
KAWASAKI KX 65 2004
KAWASAKI KX 65 2003
KAWASAKI KX 65 2002
KAWASAKI KX 65 2001
KAWASAKI KX 65 2000
SUZUKI RM 65 2005
SUZUKI RM 65 2004
SUZUKI RM 65 2003