Meets the brake performance requirements of SAE J1153 and J1154 testing, providing reliability and qualityPressure tested to ensure safe and confident brakingTrivalent coated bleeder screws provide extra protection and added durabilityCast iron and aluminum specifications; no extra stress on the brake boosting mounting
ACDelco Professional Drum Brake Wheel Cylinders use both aluminum and iron castings making them the high quality replacement ideal for many vehicles on the road today. These wheel cylinders contain both Ethylene Propylene (EPDM) and Styrene Butadiene (SBR) rubber components to provide superior resistance to heat, corrosion, and leakage. Formulated with a smooth bore finish, these cylinders have a quality seal to help increase the life of rubber components. ACDelco Professional Drum Brake Wheel Cylinders are ready to bench bleed and install right out of the box - no assembly required. These premium aftermarket replacement drum brake wheel cylinders are manufactured to meet your expectations for fit, form, and function.