Raybestos WC370266 Drum Brake Wheel Cylinder - Rear

Reliable Drum Brake Wheel Cylinder for Select GM Vehicles

The Raybestos Element3 Drum Brake Wheel Cylinder WC370266 is engineered to restore precise braking performance in various Buick, Cadillac, Chevrolet, Oldsmobile, and Pontiac models. Designed with a 0.938-inch cylinder bore diameter, this component ensures consistent hydraulic pressure for safe and effective drum brake operation.

• Cylinder bore diameter: 0.938 inches for accurate fit and function
• Compatible with multiple GM makes including Buick, Cadillac, Chevrolet, Oldsmobile, and Pontiac
• Fits models such as Buick LeSabre, Cadillac DeVille, Chevrolet Lumina APV, Pontiac Bonneville, and more
• Part number WC370266 for precise identification and replacement
• Part of the Raybestos Element3 product line, known for quality brake hydraulics

About the Raybestos Element3 Product Line

The Element3 line by Raybestos focuses on delivering dependable brake hydraulics components that meet or exceed OEM specifications. This drum brake wheel cylinder is manufactured to provide consistent hydraulic pressure and durability, supporting safe braking performance across a range of GM vehicles. Element3 parts are designed to integrate seamlessly with existing brake systems, ensuring reliable operation and longevity.

Detailed Product Description

This drum brake wheel cylinder features a 0.938-inch bore diameter, a critical dimension that ensures proper piston movement and hydraulic pressure within the drum brake assembly. The precise bore size helps maintain even brake shoe contact and consistent braking force. The WC370266 is compatible with a variety of GM vehicles, including Buick 88 and LeSabre, Cadillac 98, DeVille, and Fleetwood, Chevrolet Lumina APV, Montana, and Silhouette, as well as Pontiac Bonneville and Trans Sport models. This compatibility makes it a versatile replacement part for maintaining drum brake systems on these vehicles.

Common Applications and Issues Addressed

• Restores hydraulic pressure in drum brake systems
• Eliminates brake fluid leaks from worn or damaged wheel cylinders
• Prevents uneven brake shoe wear caused by cylinder malfunction
• Improves brake pedal feel and responsiveness
• Addresses brake drag or sticking issues related to cylinder failure

Installation Notes and Tips

• Ensure the cylinder bore diameter matches the original equipment specification (0.938 inches)
• Inspect brake shoes and hardware for wear during installation
• Bleed the brake system thoroughly to remove air after installation
• Use proper brake fluid compatible with the vehicle manufacturer’s recommendations
• Verify compatibility with the specific make and model before installation

Quality Assurance and Warranty

Raybestos Element3 brake hydraulics are manufactured to meet stringent quality standards, ensuring reliable performance and durability. The WC370266 drum brake wheel cylinder undergoes rigorous testing to comply with OEM specifications. Warranty coverage details should be confirmed with the supplier or manufacturer, as they may vary.