Pistons

Part of S58 engine · about $2,400 to replace

What it is

Six forged pistons with cooling galleries.

What it does

Transmit combustion pressure to the crank through the connecting rods.

How it fails

Ring-land damage from detonation; low-quality fuel is the usual cause.

Material	Forged 2618 aluminium, coated skirts
Spec	Bore 84 mm
	compression height 30 mm
	380 g each

Inside this part

Individual units

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