This procedure covers removal and replacement of the rear wheel cylinder on a 2014-2019 Toyota Corolla with 1.8L engine, including drum removal and brake system bleeding.

Warnings

Tools required

Parts

• Wheel cylinder assembly × 1 — 47550-02120 or equivalent
• Brake fluid × 1 — DOT 3
• Brake hardware kit (if needed) × 1 — Use OEM specification

Fluids

• DOT 3 Brake Fluid — 0.5 qt

Preparation

1. Park vehicle on level surface and engage parking brake
2. Loosen rear wheel lug nuts while vehicle is on ground
3. Raise rear of vehicle and support securely on jack stands
4. Place wheel chocks in front of front tires
5. Remove rear wheel completely
6. Release parking brake before drum removal

Procedure

1. 1

   Remove brake drum
   Remove the two retaining screws (if equipped) from the brake drum face. Pull the drum straight off the hub. If drum is stuck, use a rubber mallet to tap around the outer edge, or thread 8mm bolts into the threaded holes on the drum face to force it off. Do not strike the drum face directly.
2. 2

   Inspect brake system
   Visually inspect brake shoes, springs, and hardware for excessive wear or damage. Take a photo of the brake assembly for reference during reassembly. Note the position of all springs and hardware components.
3. 3

   Clean brake assembly
   Spray brake cleaner on the backing plate and brake components to remove dust and debris. Allow to dry. Do not use compressed air to blow out brake dust. Wipe clean with a rag if necessary.
4. 4

   Remove brake line
   Place a drain pan beneath the wheel cylinder. Using a 10mm brake line wrench, carefully loosen and remove the brake line fitting from the rear of the wheel cylinder. Immediately plug the brake line with a rubber cap or wrap with plastic to minimize fluid loss and contamination. Allow fluid to drain into pan.
   ⚠Brake fluid will drain from the line. Keep away from paint and electrical components.
5. 5

   Remove wheel cylinder mounting bolts
   Using a 10mm wrench or socket, remove the two bolts securing the wheel cylinder to the backing plate. The bolts are accessible from the rear of the backing plate. Support the wheel cylinder as you remove the second bolt.
6. 6

   Remove wheel cylinder
   Carefully pull the wheel cylinder assembly away from the backing plate. Note the position of brake shoes in the wheel cylinder slots. The shoes may need to be compressed slightly to clear the cylinder.
7. 7

   Clean mounting surface
   Use a wire brush to clean the wheel cylinder mounting surface on the backing plate. Remove any rust, old brake fluid residue, or debris. Wipe clean with brake cleaner.
8. 8

   Install new wheel cylinder
   Position the new wheel cylinder onto the backing plate, ensuring brake shoe ends engage properly in the cylinder pistons. Align the mounting holes. Hand-thread both mounting bolts before tightening to avoid cross-threading.
9. 9

   Torque wheel cylinder bolts
   Using a torque wrench and 10mm socket, tighten the wheel cylinder mounting bolts to specification. Tighten in a cross pattern to ensure even seating.
   Torque spec

   Mounting Bolts26 Nm (19 lb-ft)
10. 10

    Connect brake line
    Remove the cap or plastic from the brake line. Thread the brake line fitting into the wheel cylinder by hand first to avoid cross-threading. Use a 10mm brake line wrench to tighten the fitting snugly, but do not overtighten as this can damage the fitting or line.
11. 11

    Reinstall brake drum
    Clean the drum interior and hub mating surface with brake cleaner. Slide the drum over the hub and brake shoes. If drum does not fit, the parking brake may be engaged or shoes may need slight adjustment. Install retaining screws if equipped.
12. 12

    Reinstall wheel
    Mount the wheel onto the hub and hand-thread all lug nuts. Tighten lug nuts in a star pattern with a torque wrench to specification.
    Torque spec

    Wheel Lug Nuts140 Nm (103 lb-ft)
13. 13

    Bleed brake system
    Fill the master cylinder reservoir with fresh DOT 3 brake fluid to the MAX line. Attach a clear hose to the wheel cylinder bleeder screw and place the other end in a container with clean brake fluid. Have an assistant pump the brake pedal 3-5 times and hold. Open the bleeder screw with a 10mm wrench to release fluid and air. Close the bleeder before pedal reaches floor. Repeat until no air bubbles appear in the fluid. Torque bleeder screw to specification.
    ⚠Never let the master cylinder reservoir run dry during bleeding or air will enter the system.
    Torque spec

    Bleeder Screw10 Nm (7 lb-ft)
14. 14

    Final torque check and lower vehicle
    Check master cylinder fluid level and top off to MAX line with DOT 3 fluid. Verify all fasteners are torqued. Lower vehicle from jack stands and perform final lug nut torque check with vehicle on ground in star pattern.
    Torque spec

    Wheel Lug Nuts140 Nm (103 lb-ft)

Reassembly

1. Ensure brake drum is properly seated and rotates freely
2. Verify brake line connection is secure with no leaks
3. Check that parking brake engages and releases properly
4. Top off master cylinder reservoir to MAX line with DOT 3 brake fluid

Verification

• Pump brake pedal several times; pedal should become firm and not sink to floor
• Start engine and verify brake pedal remains firm with no excessive travel
• Check for brake fluid leaks at wheel cylinder and brake line connection
• Test drive in safe area at low speed to verify proper brake function
• Check for pulling to one side during braking
• Recheck master cylinder fluid level after test drive
• Verify parking brake holds vehicle on incline

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