Mahle MS piston set for Audi S4, six-cylinder set of six with 81.50mm bore, 86.4mm stroke and 154mm rod length. These pistons feature a 21mm pin, -7cc dish and are specified for a 9.0:1 compression ratio; material designation shown as 4032. Supplied as a matched six-cylinder set, they carry the precise dimensions needed for rebuilds that require the listed bore, stroke and rod specifications.
Mahle MS Piston Set Audi S4 81.50mm Bore 86.4mm Stroke 154mm Rod 21mm Pin -7cc 9.0 CR Set of 6