A-Premium Rear Drum Brake Wheel Cylinder for Toyota — 1.00in Bore, Cast Iron with Bleeder Screw

The A-Premium Rear Drum Brake Wheel Cylinder is a cast-iron replacement wheel cylinder with a 1-inch bore designed to restore reliable rear drum braking on compatible Toyota trucks and SUVs.

If your vehicle shows signs of rear drum brake fluid seepage, weak pedal feel, or uneven braking and you own a compatible Toyota Tundra, 4Runner, T100, or Land Cruiser model year listed, this A-Premium wheel cylinder is engineered to match factory fit and function. Built from durable cast iron and tested under high pressure and temperature, it arrives ready to install with the bleeder screw included so you can bleed and tune the rear brakes without extra purchases.

Which Toyota models and years will this cylinder fit?

This wheel cylinder fits specific Toyota models and model years that used 16-inch wheel configurations or the listed heavy-duty variants. Confirm your exact year, drivetrain and wheel size with the vehicle selector on the product page before ordering to ensure compatibility.

• Tundra: 2000–2007 rear drum applications
• 4Runner: 1996 (4WD with 16" wheels) and 1997–2000 (with 16" wheels)
• Land Cruiser: 1981–1995 rear drum models
• T100: 1993 one-ton and 1995 One-Ton DLX models

How does the cylinder match OEM specifications and help braking performance?

The A-Premium unit is produced to match the key dimensional and thread specifications needed for direct replacement. Proper bore size and thread compatibility help restore correct hydraulic pressure and pedal feel when installed and bled correctly.

• Inside diameter: 1.00 inch bore for correct piston travel
• Brake inlet thread size: M10 x 1.0 to match brake line fittings
• Thread diameter: 10 mm for secure mounting and hydraulic connection
• Material: cast iron for strength and long service life under load

What quality controls and tests does this part undergo?

A-Premium subjects this wheel cylinder to rigorous pressure and thermal tests to reduce the risk of leaks and premature failure. These checks are intended to validate sealing integrity and material performance under real-world conditions.

• Pressure testing range: 0.2 MPa to 20 MPa for seal and bore integrity
• High-temperature exposure: tested at 120°C to confirm material stability
• Bleeder screw supplied to facilitate effective air removal during installation
• Reference numbers included for cross-checking fitment (e.g., W37690, 4755035210)

What comes in the box and what should I check before installation?

The cylinder is supplied ready for rear-wheel assembly work, with the bleeder screw included for system bleeding; however, the bleeder screw cap is not included. Inspect the component for shipping damage and confirm thread and bore dimensions against the vehicle’s service manual before fitting.

• Included: wheel cylinder assembled and bleeder screw
• Not included: bleeder screw cap (purchase separately if required)
• Check: match part numbers and vehicle selector information before ordering
• Tip: flush and refill brake fluid after installation, then bleed wheels per manufacturer procedure

Who is this for: This A-Premium rear drum wheel cylinder is intended for DIY mechanics and professional technicians restoring or repairing rear drum brakes on the listed Toyota Tundra, 4Runner, Land Cruiser and T100 models. It suits owners who prefer a cast-iron replacement built to match original thread and bore specifications, with factory-style testing and a one-year unlimited-mileage guarantee for added peace of mind.