Wiseco SK1306 Top End Kit - 0.50mm Oversize to 73.50mm fuel-air-carburetors-accessories 1991 Polaris Trail Boss 250

1991 Polaris Trail Boss 250

2014-2021 Husqvarna FC250

Cures ethanol problems

2015 Polaris Ranger Diesel HST Deluxe

Wiseco SK1306 Top End Kit - 0.50mm Oversize to 73.50mm fuel-air-carburetors-accessories 1991 Polaris Trail Boss 250Bore: 73. 50mm Sizing: 0. 50mm Oversize Cylinder sleeves must be purchased separately. Pro Lite. Cast Iron Bore. Contains all the necessary components for overboring or rebuilding your top end. Feature forged pistons, rings, wrist pins, circlips and top end gasket set. Vehicle Fitment: 2003 2004 Polaris 550 Classic 1999 2004 Polaris Sport Touring 1999 2003 Polaris Super Sport 1999 2008 Polaris Trail RMK 2000 Polaris Trail Touring 2003 2006 Polaris