ATHENA Cast Piston for SUZUKI RM 125 2000-2003

ATHENA offers this piston kit for SUZUKI RM 125 2000-2003. The piston slides in the cylinder and takes the force of the air-fuel combustion, passing it to the connecting rod and crankshaft.

Why a cast piston?

A cast piston is moulded from a high-silicon aluminium alloy, then machined.

• Low expansion: it runs with a tight clearance, stays quiet when cold and warms up quickly.
• Durability: an excellent choice for a stock engine used for leisure or enduro.
• Price: more affordable than a forged piston.
• Good to know: it copes less well with overheating and extreme revs than a forged one.

Why choose ATHENA?

Athena, the Italian manufacturer founded in 1973, is an original-equipment supplier to manufacturers such as KTM and Ducati: the same standards for your replacement parts.

When should you replace the piston on your SUZUKI RM 125?

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 20 h in hard use and every 40 h for leisure.

Specifications and fitting tips

• Engine: 2-stroke
• Manufacturer part numbers: S4C05400005A (A), S4C05400005B (B), S4C05400005C (C), S4C05400005D (D)

Available in several sizes: choose the one that matches your cylinder (stamped size or measured bore). Diameters: A = 53.94 mm, B = 53.95 mm, C = 53.96 mm, D = 53.97 mm.

Spare parts and items to plan

• Piston rings : WOSSNER · VERTEX
• Piston pin : WOSSNER WP032 · WOSSNER CW15
• Piston pin clips : VERTEX · WOSSNER
• Top-end gasket kit : ATHENA · PROX
• Small end needle bearing : PROX · NTN
• Spark plug : NGK 4492 · NGK 3230
• Coolant : LIQUI MOLY 1 L · TWIN AIR
• 2-stroke oil : LIQUI MOLY 1 L · LIQUI MOLY 4 L

Compatibility

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

Fits:
SUZUKI RM 125 2003
SUZUKI RM 125 2002
SUZUKI RM 125 2001
SUZUKI RM 125 2000