Aprilia Oil Seal Ring 12x22x6 - 1A017552 (ex 857127)

Aprilia Oil Seal 12x22x6 - 1A017552 (ex 857127) Compatible Aprilia Models: RSV4 1100 (All variants / Factory): 2019–2027 Tuono V4 (All variants / 1100 / ABS): 2011–2027 RS660 (All variants / Factory / Extrema): 2021–2027 Tuono 660 (All variants / Factory): 2021–2027 Tuareg 660 (All variants / Rally): 2022–2027 Note 1: Verification required for 2009–2016 model years. Engine builds from this era utilize three distinct seal dimensions. This specific listing features part 857127, which measures 12mm ID x 22mm OD x 8mm H. Alternatively, some configurations require part 847075 (12mm ID x 20mm OD x 8mm H). The final variation, part 857313 (10mm ID x 20mm OD x 8mm H), has been permanently discontinued by Aprilia. If your vehicle uses this obsolete 10mm configuration, the factory recommends updating your bike to the 2015-specification clutch casing (Factory or R-version). This retrofit requires purchasing the updated housing along with a new actuator shaft, an updated lower shaft bearing, and a matching modern seal. Related Fitment Parts: Clutch side cover with i.p. - 1A016742 Aprilia Clutch Cover Gasket - 857451 Aprilia Roller Cage 10x14x10 - B045225 Aprilia Roller Cage 12x8x12 - B045224