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The JE single piston for Yamaha YZ450F is a replacement piston specified at a 13.5:1 compression ratio to support correct combustion and engine operation. Supplied as a single unit for top-end rebuilds and repairs, it matches the listed specification so technicians can restore compression and consistent running characteristics in YZ450F applications when refreshing the engine’s top end.
JE Pistons Yamaha YZ 450F 13.5 to 1 Piston Single
