Dorman - First Stop Drum Brake Wheel Cylinder W37017
Dorman - First Stop Drum Brake Wheel Cylinder W37017 - view 2
Dorman - First Stop Drum Brake Wheel Cylinder W37017 - view 3
Dorman - First Stop Drum Brake Wheel Cylinder W37017
Dorman - First Stop Drum Brake Wheel Cylinder W37017 - view 2
Dorman - First Stop Drum Brake Wheel Cylinder W37017 - view 3

Dorman - First Stop Drum Brake Wheel Cylinder P/N:W37017

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$53.99
MPN: W37017
Item Package Quantity: 1
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Dorman - First Stop Drum Brake Wheel Cylinder P/N:W37017
Dorman - First Stop Drum Brake Wheel Cylinder P/N:W37017
$53.99

Turn brake-pedal effort into shoe movement with the Dorman First Stop Drum Brake Wheel Cylinder W37017 — the hydraulic cylinder that pushes your drum brake shoes outward against the drum when you apply the pedal. It drops in at the front-left and rear-left drum brake positions on the 1962-1966 Buick Electra, 1962-1963 Buick Invicta, 1962-1966 Buick LeSabre, 1963-1967 and 1967-1969 Buick Riviera, and 1963-1966 Buick Wildcat (all engines).

  • Cast-iron body: Features a 1.125 in inside diameter bore and a 7/16-20 UNF inlet thread.
  • EPDM rubber cups and boots: Made with high-quality EPDM rubber cups and boots.
  • Surface-tested bore: The cylinder bore is surface-tested to provide an optimum sealing surface for the pressure cups.
  • Bleeder screw included: Ships with a bleeder screw; a bleeder screw cap is not included.

Engineered as a direct-fit match for the original wheel cylinder's fit, function and performance on the listed vehicles, it's manufactured and tested for quality assurance. Replacing the cylinder while you service the drum brakes is a quick, dependable way to keep the hydraulic side working as intended. Package contains one drum brake wheel cylinder. Country of origin: China.

Interchange: 84-36019 · 8436019 · 84-50019 · 8450019 · W906203 · 101-1464 · 1011464 · W-82019 · W82019 · 33351 · 134.62019 · 13462019 · WC257010 · 375-45003 · 37545003 · 5461056 · 5461333 · 5465042 · WC37017 · F38076 · WC38076. Manufacturer part number W37017.

This part cross-references / interchanges with the following part numbers:

84-36019, 84-50019, W906203, 101-1464, W-82019, 33351, 134.62019, WC257010, 375-45003, 5461056, 5461333, 5465042, WC37017, F38076, WC38076

Frequently Asked Questions

What does this wheel cylinder do?

It's the hydraulic cylinder in a drum brake that converts brake-fluid pressure into force, pushing the brake shoes outward against the drum when you press the pedal.

What vehicles does it fit?

The front-left and rear-left positions on the 1962-1966 Buick Electra, 1962-1963 Invicta, 1962-1966 LeSabre, 1963-1967 and 1967-1969 Riviera, and 1963-1966 Wildcat (all engines). See the Buyer's Guide tab.

What are the bore and thread sizes?

It has a 1.125 in inside diameter (bore) and a 7/16-20 UNF brake-component inlet thread, with a 7/16 in thread diameter.

Is a bleeder screw included?

Yes, a bleeder screw is included. A bleeder screw cap is not included.

What are signs this wheel cylinder may need replacing?

Signs may include a soft or sinking brake pedal and brake fluid leaking at the wheel or onto the backing plate. Diagnose the cause before replacing, as other parts can produce similar symptoms.

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