Mahle MS single forged piston for Subaru 2.5L engines, 99.75mm bore, 79.0mm stroke, 130.5mm rod and 23mm pin. This single piston is listed at roughly 401g with a -19.3cc dish and 8.5:1 compression ratio, constructed as a 4032 alloy item. It’s supplied as an individual piston for rebuilds or custom engine assemblies matching these exact bore and stroke dimensions.
Mahle MS Piston Subaru 2.5L 99.75mm Bore 79mm Stroke 130.4mm Rod 23mm Pin -22cc 8.5 CR - Single