Dorman - First Stop Drum Brake Wheel Cylinder P/N:W8266
Convert brake-line pressure into firm, even shoe force with the Dorman - First Stop Drum Brake Wheel Cylinder (W37976), the rear-left hydraulic actuator that pushes the drum-brake shoes outward against the drum. It drops in as a direct replacement for the 1998 Chevrolet Tracker, 1996-1997 Geo Tracker, 1991-1998 Suzuki Sidekick, and 1996-1998 Suzuki X-90 (all engines).
Replacing the cylinder while servicing drum brakes is a fast, cost-effective way to renew the hydraulic side of the job. If a leaking or seized wheel cylinder is behind a fluid weep at the drum, a soft pedal, or uneven rear braking, this part replaces it. Servicing both sides as a matched pair is recommended for balanced braking; this listing is for one rear-left unit. Country of origin: China.
Interchange: 172-2257 · 1722257 · 174-1092 · 1741092 · 18E385 · 84-10012 · 8410012 · W906718 · W-50012 · W50012 · 072-8965 · 0728965 · 34089 · 34227 · 134.48012 · 135.48012 · WC14089 · WC250410 · WC250430 · 91172683 · 91174801 · 91175624 · WC37976 · 5340256B60 · F129463 · WC129463. Manufacturer part number W37976.
This part cross-references / interchanges with the following part numbers:
What does this wheel cylinder do?
It's the rear-left drum-brake hydraulic actuator: brake-line pressure enters the bore and pushes the pistons and cups outward, forcing the brake shoes against the drum.
Which vehicles does it fit?
It's a direct-fit replacement for the 1998 Chevrolet Tracker, 1996-1997 Geo Tracker, 1991-1998 Suzuki Sidekick, and 1996-1998 Suzuki X-90 (all engines). See the Buyer's Guide tab to confirm.
Does it include a bleeder screw?
Yes, a bleeder screw is included. A bleeder screw cap is not included.
What are the bore size and inlet thread?
The bore inside diameter is 0.875 in., with an M10 x 1.0 (10 mm) inlet thread. The body is cast iron with EPDM rubber cups and boots.
Should I replace both sides at once?
Replacing the wheel cylinders on both sides as a matched pair is recommended for balanced rear braking. This listing is for one rear-left unit; order accordingly.
WARNING: These products can expose you to chemicals including lead and phthalates, which are known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.