Rear Left Drum Brake Wheel Cylinder for 1981-1985 Mazda RX-7 - Dorman W37548

Bring firm, even rear drum braking back to your Mazda with the Dorman - First Stop Drum Brake Wheel Cylinder (W37548). It drops in as a direct-fit replacement in the rear-left position on the 1981-1985 Mazda RX-7 [All], where hydraulic pressure from the brake fluid pushes the internal cups and pistons outward to force the brake shoes against the drum.

• Cast iron body: a cast iron cylinder with a 0.75 in inside-diameter bore that is surface-tested to provide an optimum sealing surface for the pressure cups.
• EPDM rubber cups and boots: made with high-quality EPDM rubber cups and boots for long-lasting performance.
• Twin M10 x 1.0 inlets: two M10 x 1.0 brake-line inlet threads for connecting the hydraulic lines.
• Built and tested: dimensionally engineered to install and operate like the original unit on the listed vehicles, then quality-tested before shipping.

The bleeder screw and bleeder screw cap are not included; consult the vehicle service information for the correct parts. Signs the original may need replacing include brake fluid seeping onto the backing plate or tire, a soft or spongy pedal, and uneven braking — if a leaking wheel cylinder is the cause, this replaces it. Country of origin: Taiwan.

Interchange: 18E186 · 84-14105 · 8414105 · W906501 · W-53105 · W53105 · 072-8110 · 0728110 · 33855 · 134.45105 · WC13855 · 375-80009 · 37580009 · FA0126710 · WC37548 · F107450 · WC107450 · Manufacturer part number W37548.