The Dorman Heavy Duty Pressurized Coolant Reservoir for Sterling is ideal for a seamless installation in your Sterling vehicle. This heavy duty reservoir is designed to withstand the stresses of underhood heat and engine vibration. It is made of premium plastic material for maximum durability and long-lasting performance. It is designed to meet or exceed OE specifications. With its easy installation and reliable performance, this pressurized coolant reservoir is the perfect choice for your Sterling vehicle. FleetPride is your First Click in Heavy Duty®.