The Mahle MS piston set for the 4B11T is a four-piece replacement specified with an 86.50mm bore, 86.0mm stroke and 143.75mm connecting rod. Each piston uses a 23mm wrist pin and is listed at -4.5cc volume with a 9.1:1 compression ratio in this configuration. The set is intended to match the dimensional needs of the 4B11T engine build or rebuild where these dimensions are required.
Mahle MS Piston Set 4B11T 86.50mm Bore 86.0mm Stroke 143.75mm Rod 23mm Pin -4.5vol 9.1 CR Set of 4