Description Model/Year Cyl. Bore Size Sleeve Description Thickness O.D. Sleeve Length Type Brand Part No. 250 hp 3.3 litre 03-06 6 3.661"(93mm) HPDI with ports N/A 3.923" 6.350" RS Advanced 1184SB Cylinder Sleeve: Yamaha 250 Hp 3.3L HPDI 03-06 Straight .020 Over Yamaha 6 Cyl 3.660 Bore 3.3L HPDI 250 2003-2006