Description Model Year Cyl. Bore Size Sleeve Description Thinckness O.D. Sleeve Lenght Type 175 hp 60 Deg.Optimax 2.5L (153 C.I.)2507cc 99-04 6 3.500"(89mm) Straight sleeve, with ports cut in. Same ports as LA146OB, but without exhaust port relief notch 3/32" 3.693" 5.275" RS Installation Instructions
Mercury 6 Cyl. 135 HP Optimax 60 Degree 2.5L 99-04 Replacement Cylinder Sleeve $141.95 Add to Cart Compare
Mercury 3 Cyl. 75 Hp Optimax (93 C.I. Cylinder) Replacement Cylinder Sleeve $141.95 Add to Cart Compare
Mercury 6 Cyl. 135 HP Optimax 60 Degree 2.5L 99-04 Replacement Cylinder Sleeve $141.95 Add to Cart Compare
Mercury 3 Cyl. 75 Hp Optimax (93 C.I. Cylinder) Replacement Cylinder Sleeve $141.95 Add to Cart Compare