【OEM Part NumbeAULINK (OEM Parts) 4 PCS Hydraulic Roller Valve Lifter Fits 1984-1998 Harley Davidson Evo 1340cc r】18523-86 CY18523-86B 【Fitment】Compatible with 1984-1999 Evolution Big Twin models and 1987-1990 Sportster and Buell models 【Strict Quality Control】Hydraulic roller valve lifter manufactured in TS16949 certified facilities, undergone material validation and functional testing to ensure its performance. 【Better Performance】The Hydraulic Roller Lifters are made of high-quality metal materials, which are wear-resistant and durable, not easy to damage, and have a long service life. Precise valve timing and lift control greatly Improve fuel economy and enhance engine performance. 【Warranty】This hydraulic roller valve lifter kit provides a 1-year replacement or 50000km promise. If you have any problems with the AULINK product, please feel free to contact us via Amazon message. Engine Lifter