HomeBrake > Hardware, Fasteners and FittingsDorman W40952 Drum Brake Wheel Cylinder - Front Left or Front Right
Part #: W40952

Dorman W40952 Drum Brake Wheel Cylinder - Front Left or Front Right

Front Right
38 vehicles fit this part
Select your vehicle to confirm fitment
Verify this part fits before purchasing — free returns if it doesn't
$29.07Free Shipping
Free ShippingNo Cost to Continental U.S.
Free Returns*Wrong fit? No cost
60-Day ReturnsMoney back guarantee
*Free return shipping only qualifies if our fitment verification tool is used.
In Stock · Ready To Ship Most orders ship same-day if ordered before 1pm CST.
OE Direct Replacement — Bolt-on fit, no modifications needed
Fitment: Jeep, Ford, Mercury, and Dodge, CJ5, CJ7, P-350, Maverick, CJ6, Comet, Mustang, Cougar, W100 Pickup, Ranchero, Torino, Cyclone, Montego, Fairlane, Falcon, and Falcon Sedan Delivery
Easy Returns — Return within 60 days for a full refund
Fast Shipping — Most orders ship same business day before 1pm CST

Reliable Drum Brake Wheel Cylinder for Ford, Jeep, and Mercury

The Dorman W40952 drum brake wheel cylinder is engineered to restore proper braking function for select Ford, Jeep, and Mercury vehicles. Designed with durable cast iron construction and precise specifications, this wheel cylinder ensures consistent hydraulic pressure for safe and effective drum brake operation.

  • Includes bleeder screw for easy brake bleeding
  • Constructed from cast iron for strength and durability
  • 1.125 inch bore diameter for accurate fitment
  • Brake component inlet thread size: 3/8-24 UNF
  • Thread diameter: 3/8 inch
  • Package contains one drum brake wheel cylinder

Durable Construction and Precise Specifications

The Dorman W40952 wheel cylinder features a cast iron casting material that provides long-lasting resistance to wear and corrosion. Its 1.125 inch bore diameter is designed to match original equipment specifications, ensuring proper hydraulic pressure within the drum brake system. The included bleeder screw simplifies maintenance by allowing trapped air to be released during brake servicing. Thread sizes of 3/8-24 UNF for the brake component inlet and 3/8 inch for the thread diameter ensure compatibility with the brake lines and fittings on compatible vehicles.

Compatible Vehicles and Applications

This drum brake wheel cylinder is compatible with various Ford, Jeep, and Mercury models, including the Jeep CJ5 and CJ7, Ford Mustang, Mercury Cougar, and Mercury Montego. The part number W40952 corresponds specifically to these applications, making it a suitable replacement for restoring braking performance on these vehicles.

Common Issues Addressed by This Wheel Cylinder

  • Brake fluid leaks from worn or damaged wheel cylinders
  • Reduced braking efficiency due to internal cylinder wear
  • Spongy or soft brake pedal caused by air in the brake lines
  • Uneven brake shoe wear resulting from inconsistent hydraulic pressure
  • Brake drag or sticking caused by seized wheel cylinder pistons

Installation Notes and Tips

When installing the Dorman W40952 wheel cylinder, ensure the brake system is properly bled using the included bleeder screw to remove any air pockets. Verify thread compatibility with existing brake lines and fittings before installation. It is recommended to inspect brake shoes and hardware during replacement to maintain optimal braking performance. Use appropriate tools to avoid damaging the cast iron cylinder during installation.

Quality Assurance and Warranty

Dorman parts are manufactured to meet or exceed OEM standards for fit, form, and function. The W40952 drum brake wheel cylinder undergoes rigorous quality control to ensure reliable performance. While specific warranty details may vary, Dorman typically offers limited warranties covering defects in material and workmanship. Consult product documentation for exact warranty terms.

BrandDorman
Part NumberW40952
Bleeder Screw Cap IncludedNo
Bleeder Screw IncludedYes
Bore Diameter1.125
Brake Component Inlet Thread Size3/8-24 UNF
Casting MaterialCast Iron
Package Contents1 Drum Brake Wheel Cylinder
Thread Diameter3/8

This part fits 38 vehicles. Search below:

YearMakeModelLitersCylindersPositionNotes
1977JeepCJ5Front RightCompatible with drum brake systems with a 1.125" bore size.
1977JeepCJ7Front RightCompatible with drum brake systems with a 1.125" bore size.
1976JeepCJ5Front RightCompatible with drum brake systems with a 1.125" bore size.
1976JeepCJ7Front RightCompatible with drum brake systems with a 1.125" bore size.
1975JeepCJ5Front RightCompatible with drum brake systems with a 1.125" bore size.
1974JeepCJ5Front RightCompatible with drum brake systems with a 1.125" bore size.
1973FordMustangFront RightCompatible with drum brake systems with a 1.125" bore size.
1972FordMustangFront RightCompatible with drum brake systems with a 1.125" bore size.
1972MercuryCougarFront RightCompatible with drum brake systems with a 1.125" bore size.
1971FordMustangFront RightCompatible with drum brake systems with a 1.125" bore size.
1971MercuryCougarFront RightCompatible with drum brake systems with a 1.125" bore size.
1971MercuryMontegoFront RightCompatible with drum brake systems with a 1.125" bore size.
1970FordMustang4.1LL6Front RightCompatible with drum brake systems with a 1.125" bore size.
1970FordMustang5.0LV8Front RightCompatible with drum brake systems with a 1.125" bore size.
1970FordMustangFront RightCompatible with drum brake systems with a 1.125" bore size.
1970MercuryCougarFront RightCompatible with drum brake systems with a 1.125" bore size.
1970MercuryMontegoFront RightCompatible with drum brake systems with a 1.125" bore size.
1969FordMustang4.1LL6Front RightCompatible with drum brake systems with a 1.125" bore size.
1969FordMustang5.0LV8Front RightCompatible with drum brake systems with a 1.125" bore size.
1969FordMustangFront RightCompatible with drum brake systems with a 1.125" bore size.
1969MercuryMontego4.1LL6Front RightBore: 1.125 In.; Sedan; Coupe
1969MercuryMontego5.0LV8Front RightBore: 1.125 In.; Sedan; Coupe
1969MercuryMontegoFront RightBore: 1.125 In.; Sedan; Coupe
1968FordMustang5.0LV8Front RightCompatible with drum brake systems with a 1.125" bore size.
1968FordMustang4.7LV8Front RightCompatible with drum brake systems with a 1.125" bore size.
1968FordMustang7.0LV8Front RightCompatible with drum brake systems with a 1.125" bore size.
1968MercuryMontego7.0LV8Front RightCompatible with drum brake systems with a 1.125" bore size.
1968MercuryMontego5.0LV8Front RightCompatible with drum brake systems with a 1.125" bore size.
1968MercuryMontegoFront RightCompatible with drum brake systems with a 1.125" bore size.
1968MercuryMontego3.3LL6Front RightCompatible with drum brake systems with a 1.125" bore size.
1968MercuryMontego4.7LV8Front RightCompatible with drum brake systems with a 1.125" bore size.
1967FordMustang4.7LV8Front RightCompatible with drum brake systems with a 1.125" bore size.
1967FordMustang7.0LV8Front RightCompatible with drum brake systems with a 1.125" bore size.
1966FordMustang4.7LV8Front RightCompatible with drum brake systems with a 1.125" bore size.
1965FordMustang4.3LV8Front RightCompatible with drum brake systems with a 1.125" bore size.
1965FordMustang4.7LV8Front RightCompatible with drum brake systems with a 1.125" bore size.
1964FordMustang4.3LV8Front RightCompatible with drum brake systems with a 1.125" bore size.
1964FordMustang4.7LV8Front RightCompatible with drum brake systems with a 1.125" bore size.

* Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.

This part directly replaces or is cross-referenced with the following part numbers:

134.6101718E11892036018262067529539953361540952784-34017C20Z2061AF40952W-81017W906173WC13615

Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.