Centric 134.34003 Drum Brake Wheel Cylinder - Rear

Overview of Centric Premium Wheel Cylinders for BMW 320i

The Centric Premium Wheel Cylinder 134.34003 is designed specifically for BMW 320i models, providing reliable drum brake hydraulic performance. Engineered with precision, this bolted wheel cylinder ensures consistent braking response and durability.

• Attachment Type: Bolted with 2 mounting bolts
• Includes bleeder screw with 6mm thread diameter and 1.0 thread pitch
• Dual slotted pistons for balanced hydraulic pressure
• Bore diameter of 19mm (0.748 inches) for optimal fluid flow
• Bubble flare type inlet fitting with 10mm thread diameter
• Compatible with left and right wheel positions
• Lightweight design at 0.7 lbs (0.32 kgs)

Detailed Product Features and Specifications

This Centric Premium Wheel Cylinder (part number 134.34003) is built to meet the exact specifications required for BMW 320i drum brake systems. The unit mounts securely using two bolts, ensuring a stable fitment. It features two slotted pistons that provide even hydraulic pressure distribution, enhancing braking efficiency. The bore diameter measures 19mm, which is critical for maintaining proper brake fluid flow and pressure. The included bleeder screw simplifies brake system maintenance and bleeding, with a 6mm thread diameter and 1.0 thread pitch. The inlet fitting uses a bubble flare type with a 10mm thread diameter and 1.0 pitch, compatible with standard brake lines. This wheel cylinder is designed for use on both left and right sides of the vehicle, making it a versatile replacement part.

About Centric Premium Wheel Cylinders

The Centric Premium Wheel Cylinders line focuses on delivering high-quality brake hydraulics components that meet or exceed OEM standards. This product line emphasizes precise fitment, durable materials, and reliable performance for vehicles like the BMW 320i. Each wheel cylinder in this line undergoes rigorous testing to ensure consistent operation and longevity in demanding braking conditions.

Common Applications and Problem Resolution

• Restores proper hydraulic pressure in drum brake systems
• Eliminates brake fluid leaks caused by worn or damaged wheel cylinders
• Resolves uneven or spongy brake pedal feel
• Prevents brake drag due to piston sticking or corrosion
• Ensures balanced braking on both left and right rear wheels

Installation Notes and Tips

• Verify compatibility with BMW 320i before installation
• Use proper torque specifications for the two mounting bolts to avoid leaks
• Bleed the brake system thoroughly using the included bleeder screw
• Inspect brake lines and fittings for wear or damage during installation
• Replace both wheel cylinders simultaneously for balanced braking performance

Quality Assurance and Warranty

Centric Premium Wheel Cylinders are manufactured to meet strict quality control standards, ensuring reliable performance and durability. The 134.34003 wheel cylinder is constructed from corrosion-resistant materials and precision-machined components. While specific warranty details are not provided here, Centric products typically come with a limited warranty covering defects in materials and workmanship.