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How to change front brake discs on TOYOTA 4Runner Off-Road (N210) – replacement guide
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Recommended replacement interval for the part category Brake disc : 50000 km
Important!
This replacement procedure can be used for:
TOYOTA 4 RUNNER (UZN21_, KZN21_, GRN21_) 4.0 (GRN210), TOYOTA 4 RUNNER (UZN21_, KZN21_, GRN21_) 4.7 4WD (UZN215) … View more
The steps may slightly vary depending on the car design.
TOYOTA 4 RUNNER (UZN21_, KZN21_, GRN21_) 4.0 (GRN210), TOYOTA 4 RUNNER (UZN21_, KZN21_, GRN21_) 4.7 4WD (UZN215) … View more
The steps may slightly vary depending on the car design.
This video shows the replacement procedure of a similar car part on another vehicle
All the parts you need to replace – Brake Discs for 4 RUNNER (UZN21_, KZN21_, GRN21_) and other TOYOTA models
Alternative products

Wire brush
WD-40 spray
Brake cleaner
Copper grease
Drive socket # 12
Drive socket # 17
Wheel impact socket #21
Ratchet wrench
Torque wrench
Flat Screwdriver
Pin punch
Tap wrench
Rubber mallet
Crow bar
Wheel chock
Replacement: brake discs – TOYOTA 4 RUNNER (UZN21_, KZN21_, GRN21_). AUTODOC experts recommend:
- Replace the brake disks on the car TOYOTA 4 RUNNER (UZN21_, KZN21_, GRN21_) in complete set for each axis. Regardless of the state of components. This will ensure even braking.
- The replacement procedure is identical for both brake disks on the same axle.
- When changing the brake discs, always replace the brake pads.
- All work should be done with the engine stopped.
Replacement: brake discs – TOYOTA 4 RUNNER (UZN21_, KZN21_, GRN21_). Use the following procedure:
- Step 1Open the bonnet. Unscrew the brake fluid reservoir cap.Step 2
Secure the wheels with chocks. - Step 3
Loosen the wheel mounting bolts. Use wheel impact socket #21. - Step 4Raise the front of the car and secure on supports.Step 5
Unscrew the wheel bolts.AUTODOC recommends:Important! Hold the wheel while unscrewing the fastening bolts. TOYOTA 4 RUNNER (UZN21_, KZN21_, GRN21_) - Step 6
Remove the wheel. - Step 7
Clean the brake pads fasteners. Use a wire brush. Use a brake cleaner.Replacement: brake discs – TOYOTA 4 RUNNER (UZN21_, KZN21_, GRN21_). Tip:After applying the spray, wait a few minutes. - Step 8
Remove the brake pads retaining clips. Use a crowbar. Use a flat screwdriver. - Step 9
Remove the retainer of the brake pads. Use a pin punch. Use a rubber mallet. - Step 10
Remove the retaining spring of the brake pads. - Step 11
Spread the brake pads. Use a crowbar. - Step 12
Remove the brake pads. - Step 13
Clean the brake hose bracket fasteners. Use a wire brush. Use WD-40 spray. - Step 14
Disconnect the brake hose mounting bracket. Use a drive socket #12. Use a ratchet wrench. - Step 15
Clean the brake caliper fasteners. Use a wire brush. Use WD-40 spray. - Step 16
Unscrew the brake caliper fastening. Use a drive socket #17. Use a tap wrench. - Step 17
Remove the brake caliper.AUTODOC recommends:Tie the caliper to the suspension or to the body with a wire without disconnecting from the brake hose to prevent depressurization of the brake system.Make sure that the brake caliper is not hanging on the brake hose.Don't press the brake pedal after the brake caliper has been removed. As a result, the piston can fall out from the brake cylinder, and brake fluid leakage and depressurization of the system may occur. - Step 18
Clean the brake disk surface. Use WD-40 spray. - Step 19
Remove the brake disc. Use a rubber mallet. - Step 20
Clean the hub. Use a wire brush. Treat the contacting surface. Use copper grease. - Step 21
Install the brake disc.
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