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CP Pistons single replacement piston for Ford XR6 I6 4.0L lists a 3.634 in. bore and a 9.0:1 compression ratio and is offered individually for one-cylinder service or phased rebuilds. It matches the dimensions used across the XR6 inline-six family and is intended for cases where single-piston replacement is needed during engine repair or when matching existing pistons in a rebuild.
CP Piston Ford XR6 I6 4.0L - Bore 3.634in - CR 9.0:1- Single
