Manufactured by SPI. Lower Left A-Arm. Made from 4130 chrome-moly steel for lightness and durability.. Designed to reduce weight and add strength. All ball-joints sold separately.. Replaces OEM # 505073039. Available in black.. Made in Taiwan.. Fits the following models:. 2011 SKI-DOO Summit 600ho Everest etec. 2011 SKI-DOO Summit 600ho x etec. 2011 SKI-DOO Summit 800R Everest etec. 2011 SKI-DOO Summit 800R Everest ptek. 2011 SKI-DOO Summit 800R SP ptek. 2011 SKI-DOO Summit 800R 600ho SP etec. 2013 SKI-DOO Summit 800R SP etec. 2013 SKI-DOO Summit 800R Sport ptek. 2013 SKI-DOO Summit 800R etec. 2014 SKI-DOO Summit 800R Sport ptek. 2014 SKI-DOO Summit 800R ptek. 2015 SKI-DOO Summit 800R