Turn hydraulic brake-fluid pressure into the shoe-spreading force your rear drum brakes depend on with the Dorman - First Stop Drum Brake Wheel Cylinder W37978. This rear right wheel cylinder is a direct replacement engineered to drop in like the original on the 1992-2000 Hyundai Elantra, 1994-1998 Hyundai Sonata, 1995-1999 Hyundai Accent and 1997-2001 Hyundai Tiburon (All engines).
- Aluminum body: with a 0.75 in. inside-diameter bore.
- EPDM rubber cups and boots: for long-lasting performance.
- Bleeder screw included: the bleeder screw cap is not included.
- M10 x 1.0 inlet thread: 10 mm thread diameter, 1.0 thread pitch.
- Surface-tested bores: checked for an optimal sealing surface for the pressure cups.
Replacing the wheel cylinder while you service the drum brakes is a fast, cost-effective way to keep the hydraulic side working as intended. If a leaking or seized cylinder is behind a spongy pedal or fluid seeping at the drum, this unit replaces it. Sold individually; replacing both sides as a matched set is good practice for balanced rear braking. Country of origin: China.
Interchange: 18E387 · 784-16015 · 78416015 · 84-16015 · 8416015 · W906720 · 101-1356 · 1011356 · P3406 · W-52015 · W52015 · 072-9096 · 0729096 · 34109 · 134.51015 · 135.51015 · WC14109 · WC257780 · 375-03010 · 37503010 · 4747028001 · 5838022000 · 5838028001 · 2037978 · WC37978 · F131445 · WC131445. Manufacturer part number W37978.
This part cross-references / interchanges with the following part numbers:
18E387, 784-16015, 84-16015, W906720, 101-1356, P3406, W-52015, 072-9096, 34109, 134.51015, 135.51015, WC14109, WC257780, 375-03010, 4747028001, 5838022000, 5838028001, 2037978, WC37978, F131445, WC131445
