This replacement shock absorber, OEM #665698, is designed for heavy-duty applications and provides long-lasting, dependable performance even in the worst temperature conditions. The nitrogen gas-charged shock minimizes hydraulic fluid aeration for a more responsive performance, while specially designed concave bushings keep the bushing in place and prevent bushing walkout. Precision robotic welded eye rings provide superior durability, and a reinforced seal and mirror-finished hard chrome OE style piston rod offer superior corrosion resistance and leak-free sealing. This shock absorber is sold individually and fits OEM #665698, with a Gabriel crossover part number of 85911.