Engine Parts Pistons With Rings Set STD 85.5mm Fit 3.2 L CALA CALB For A4 Avant B8 A5 A6 Q5 Van 3.2L FSI V6 GAS Piston set with rings designed for fitment on 3.2L FSI V6 engines with model designations CALA and CALB.Features standard size 85.5mm diameter pistons compatible with specified engine variants.Intended for use in select vehicle models including A4 Avant B8, A5, A6, and Q5 Van applications.Components are engineered for proper cylinder fitment and consistent compression performance.Includes full piston and ring assembly for complete replacement during engine rebuild or repair procedures.