What does a brake wheel cylinder do?

The brake wheel cylinder is a key part of your rear drum brake system. When you apply the brakes, hydraulic pressure pushes fluid into the cylinder, forcing pistons outward. These pistons then push the brake shoes against the drum to slow your vehicle.

What are the symptoms of a bad brake wheel cylinder?

Common signs of a failing wheel cylinder include a spongy or soft brake pedal, reduced braking effectiveness, and brake fluid leaks around the rear wheel area. You might also notice uneven braking on the rear axle.

Does this wheel cylinder come with brake shoes or hardware?

This DFC brake wheel cylinder is sold individually and includes the cylinder itself. It does not come with brake shoes, springs, or other related hardware, which would need to be purchased separately if required.

DFC 77-80 Mazda RX-4 Rear-R Brake Wheel Cylinder

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Specifications

Brand: DFC
Part #: 375-80004
UPC: 190920403989

DFC 77-80 Mazda RX-4 Rear-R Brake Wheel Cylinder

Name: DFC 77-80 Mazda RX-4 Rear-R Brake Wheel Cylinder
Brand: DFC
Price: 17.03 USD
Availability: InStock

$17.03

On Backorder

Order now to reserve yours — we'll ship as soon as stock arrives. Full refund if we're unable to fulfill.

Fits 1979-1980 Mazda 626. This DFC rear brake wheel cylinder is essential for proper rear brake function.

Key Features

Fits 1979-1980 Mazda 626 and 1977-1978 Mazda RX-4.
Features a durable cast iron housing for reliable performance.
Located on the rear passenger side of the braking system.
Essential component for hydraulic rear drum brake operation.
Prop 65 warning applies to this product.

⚠️ CA WARNING: This product can expose you to chemicals known to the State of California to cause cancer and/or birth defects or other reproductive harm. Learn more

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Fits these vehicles

Mazda 626 1979-1980
Mazda RX-4 1977-1978

Product Details

This DFC brake wheel cylinder is built with a cast iron housing, a material known for its strength and durability in braking systems. It's designed to fit the rear passenger side of your 1979 or 1980 Mazda 626, or the 1977-1978 Mazda RX-4. This part is crucial because it houses the brake shoes and pistons, pushing them outward against the drum when you apply the brakes to slow your vehicle.

When you press the brake pedal, hydraulic pressure forces fluid into this cylinder, which in turn pushes the pistons outward. These pistons then force the brake shoes to expand and make contact with the inside of the brake drum, creating the friction needed to stop your car. If this cylinder is leaking or sticking, you'll notice a spongy brake pedal, reduced braking performance, or uneven braking on the rear axle. Replacing it ensures your rear brakes can do their job effectively.