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Dorman W37785 Rear Drum Brake Wheel Cylinder Compatible with Select Chevrolet / GMC Models

  • Based on 396 reviews
Condition: New
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Availability: In Stock.
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Arrives Friday, Jul 3
Order within 6 hours and 41 minutes
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Features

  • Ideal replacement - specifically engineered to be direct match for original drum brake wheel cylinder on particular vehicles.Material:Cast Iron
  • Cost-effective fix - replacement of cylinder while servicing drum brakes is fastest, surest way to ensure brake performance
  • Quality materials - made with high-quality EPDM rubber cups and boots for long-lasting performance
  • Professionally tested - wheel cylinder bores are surface-tested to ensure an optimum sealing surface for the pressure cups
  • Ensure fit - to make sure this part fits your exact vehicle, input your make, model and trim level into the garage tool

Description

This direct replacement drum brake wheel cylinder was specifically engineered to match the fit, function and performance of the original wheel cylinder on particular vehicles. It is manufactured and tested for quality assurance. This part is compatible with the following vehicles. Before purchasing, enter your vehicle trim in the garage tool to confirm fitment. [Chevrolet Blazer: 1992, 1993, 1994] - [Chevrolet C10 Pickup: 1974, 1975, 1976, 1977, 1978] - [Chevrolet C10: 1975, 1976, 1977, 1978, 1979, 1980, 1981, 1982, 1983, 1984, 1986, 1987] - [Chevrolet C1500: 1988, 1989, 1990, 1991, 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999] - [Chevrolet C2500: 2000] - [Chevrolet K1500 Suburban: 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999] - [Chevrolet K1500: 1988, 1989, 1990, 1991, 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999] - [Chevrolet Silverado: 1995, 1996, 1997, 1998, 1999] - [Chevrolet Sonora: 2000] - [Chevrolet Suburban 1500: 2000] - [Chevrolet Tahoe: 1995, 1996, 1997, 1998, 1999, 2000] - [GMC C15/C1500 Pickup: 1974] - [GMC C15: 1975, 1976, 1977, 1978] - [GMC C1500: 1988, 1989, 1990, 1991, 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999] - [GMC C2500: 2000] - [GMC K1500 Suburban: 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999] - [GMC K1500: 1988, 1989, 1990, 1991, 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999] - [GMC Yukon: 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999, 2000]

Manufacturer: ‎Dorman Products


Brand: ‎Dorman


Model: ‎W37785


Item Weight: ‎1.6 ounces


Product Dimensions: ‎4.1 x 3.1 x 2.5 inches


Item model number: ‎W37785


Is Discontinued By Manufacturer: ‎No


Exterior: ‎Machined


Manufacturer Part Number: ‎W37785


OEM Part Number: ‎116224; 134.66018; 135.66018; 172-1514; 18E1234; 18E296; 2037785; 33961; 784-44018; 84-44018; F116224; W-86018; W906625; WC116224; WC13961; WC370189; WC37785; 18013956; 18018788; 18060167; 19213347


Position: ‎Rear


Date First Available: October 10, 2007


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Friday, Jul 3

Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

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  • Financing through Apple Pay
Leasing options through Acima may also be available during checkout.

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Top Amazon Reviews


  • A+
Easy to install and worked great
Reviewed in the United States on May 5, 2026 by HvacClan

  • Seems to work well
Good price seems to work as it should
Reviewed in the United States on February 3, 2026 by WENDY KRAJENKA

  • Good 👍
This fit perfectly in my ‘91 GMC pickup 2WD. The bleeder screw was really tight out of the box. So expect that small issue. Great price and great fit.
Reviewed in the United States on November 8, 2024 by mike Spears

  • Solved my leaking rear brake issue.
Fast shipment. Good packaging. Quality part
Reviewed in the United States on September 5, 2025 by BeachLover

  • Good product good price
Needed for my 1979 chevy Scottsdale. Does exactly what you'd expect it to do, pretty much identical to the ones removed. Would recommend
Reviewed in the United States on November 4, 2025 by Dakota

  • Good value
Works good
Reviewed in the United States on September 3, 2023 by jorge roman

  • 1988 c1500
Put on a 1988 chevy 1500. Works like it should.
Reviewed in the United States on October 11, 2025 by michael goodman

  • Good price
Fit as it should
Reviewed in the United States on October 27, 2025 by teddy

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