MakeToyota

424310K120 DRUM SUB-ASSY, REAR BRAKE

Information

Rear Brake Drum Assembly for Toyota Vehicles

This OEM-grade rear drum keeps your stopping power consistent and quiet. Built from dense cast iron with a precision-machined friction surface, it maintains perfect roundness, heat capacity, and balance for everyday driving and heavy loads. Ideal for Toyota pickups and SUVs with rear drum brakes.

Why you need this part

The drum is the surface the shoes press against to slow the wheel. A fresh, true drum restores pedal feel, shortens braking distances, and improves parking brake hold on hills. It also prevents vibration and uneven shoe wear.

How it works

Press the pedal and the wheel cylinder pushes the shoes outward. The linings grip the inner drum surface, turning motion into heat. The drum acts as a heat sink and rotates with the hub. The handbrake uses the same shoes to lock the wheel when parked.

What happens if it’s damaged ⚠️

Warping or scoring causes pedal pulsation, squeal, and longer stops. Excess diameter reduces shoe contact and weakens the parking brake. Cracks can lead to sudden loss of braking, overheating, and accelerated shoe wear.

Fitment & install tips

  • Replace in pairs and bed new shoes properly.
  • Measure inside diameter; do not exceed service limit.
  • Clean hub face, set shoe adjustment to slight drag, then road-bed.
  • Torque lug nuts evenly; inspect bearings and cylinders.

Key features βœ…

  • High-carbon cast iron, precision-balanced.
  • Anti-corrosion coating for long life.
  • Smooth, stable braking and reduced noise.