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Mahle MS single piston for Audi S4 with 81.50mm bore, 86.4mm stroke and 154mm rod. The single piston specification includes a 21mm pin, approximately -7.2cc dish, a mass near 295g and a 9.0:1 compression ratio; material code noted as 4032. Sold individually for piston-by-piston replacement or custom rebuilds using the documented dimensions and specifications.
Mahle MS Piston Audi S4 81.50mm Bore 86.4mm Stroke 154mm Rod 21mm Pin -7cc (Singe Piston)
