Overview
The Baer Brakes 31520-020 is a front Claw performance rotor set for the 2003–2009 Toyota 4Runner, the 2005–2023 Toyota Tacoma with six lugs and the 2007–2014 Toyota FJ Cruiser. The listed 4Runner entry is tied to trucks with 12.56 inch front rotors, so check that detail before fitting.
Toyota 4×4 owners who spend time on rough trails or long descents often look for a front rotor that resists fade. The slotted and drilled face on this set is meant to release gas and dust from between the pad and rotor, and the rotors are one-piece, full cast and vented. The zinc-plated finish gives them a bright look behind open-center wheels.
Key features
- Slotted and drilled friction surface that moves gas and dust away from the pad face
- Vane structure and premium materials designed for cooling and durability
- Mill balanced, direct replacement rotor design
- Chamfered cross-drilled holes to minimize stress cracking
- Zinc-plated finish for a bright appearance in open-center wheels
Trail use and brake heat
Four-wheel-drive Toyota trucks often carry extra weight and spend time on descents and rough terrain, which raises brake temperature. Front rotors take most of the stopping force, so the surface and vanes play a large part in how the brakes hold up over repeated use.
Pads should match the rotor face and the driving you do. Bed new pads in gently, and avoid long dragging on the brake pedal, which can glaze pads and rotors. When replacing front brakes, check the caliper slides and the hub bearing for play, since a loose hub can cause the rotor to wobble.
Keep the existing tone ring in place and inspect it for damage, since this kit does not include one. Clean rust from the hub face before mounting, and tighten the lug nuts in a star pattern once the wheels are on.
Specifications
| Brand | Baer Brakes |
|---|---|
| Part number | 31520-020 |
| UPC | 844165051312 |
| Sold as | Set (pair) |
| Rotor construction | One-piece |
| Construction | One-piece, full cast |
| Axle | Front |
| Solid or vented | Vented |
| Brake surface | Directional |
| Surface type | Slotted x drilled |
| Material | Cast iron |
| Disc finish | Zinc plated |
| Grade type | Premium |
| Stud/lug hole quantity | 6 |
| Mounting bolt hole circle diameter | 140 |
| Outside diameter | 318.77 |
| Overall height | 67.5 |
| Discard thickness | 26 |
| ABS tone ring included | No |
| Emission code | 6 |
| Country of origin | CN |
Vehicle fitment
The manufacturer fitment list has three front rotor entries: the 2003–2009 Toyota 4Runner with 12.56 inch front rotors, the 2005–2023 Toyota Tacoma with six lugs and the 2007–2014 Toyota FJ Cruiser. Each entry is for the front axle.
Trucks with other front rotor sizes on the 4Runner, and Tacoma models that are not six-lug, are not covered by the listed entries. Confirm your vehicle’s year, model and trim before ordering.
Installation notes
The kit does not include an ABS tone ring, so keep the existing tone ring in place when mounting. Confirm the 12.56 inch rotor qualifier for the 4Runner before fitting, and check the 140 bolt hole circle against your hub.
What’s included
A pair of front rotors, sold as a set.
Not included: ABS tone ring.
