Keep your rear drum brakes applying even hydraulic force with the Dorman - First Stop Drum Brake Wheel Cylinder W3396. Inside the drum, this cylinder converts brake-line pressure into outward motion, pushing its internal cups and pistons to press the brake shoes against the drum. It installs as a direct-fit replacement for the 1946-1950 Chevrolet Fleetline and 1946-1948 Chevrolet Fleetmaster (All engines), in the rear position.
- Direct-fit design: engineered to match the fit, function and performance of the original rear wheel cylinder on the listed applications; manufactured and tested for quality assurance.
- Quality materials: built with high-quality EPDM rubber cups and boots for long-lasting performance.
- Professionally tested: the bore is surface-tested to provide an optimum sealing surface for the pressure cups.
- Specs: cast-iron body with a 1.188 in bore and a 1/2-20 inlet thread; bleeder screw included (bleeder screw cap not included).
Signs this cylinder may need replacing include brake fluid weeping at the backing plate, fluid-soaked shoes, or a spongy pedal — if a leaking wheel cylinder is the cause, this replaces it. Each listed application uses two; this listing is for one cylinder, so order two and replace both sides together for balanced braking. Country of origin: China.
Interchange: W906003 · 101-1662 · 1011662 · 134.66032 · WC252230 · 375-47081 · 37547081 · 5300866 · WC3396 · F3396 · Manufacturer part number W3396
This part cross-references / interchanges with the following part numbers:
Frequently Asked Questions
What vehicles does the W3396 wheel cylinder fit?
It's a direct-fit rear wheel cylinder for the 1946-1950 Chevrolet Fleetline and 1946-1948 Chevrolet Fleetmaster (All engines). Each listed application uses two.
What does a drum brake wheel cylinder do?
It converts hydraulic brake-line pressure into outward motion, pushing its pistons and cups to press the brake shoes against the drum when you apply the brakes.
Is the bleeder screw included?
Yes, the bleeder screw is included. The bleeder screw cap is not included.
What are the bore and thread specifications?
It has a 1.188 in inside bore diameter and a 1/2-20 inlet thread, with a cast-iron body and EPDM rubber cups and boots.
Should I replace both wheel cylinders at once?
This listing is for one cylinder, and the listed applications use two. Replacing both sides together as a matched pair is recommended for even, balanced braking.
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