Overview
Part number 31204-020 from Baer Brakes is a front pair of cross-drilled and slotted Claw performance rotors for the 1995-2002 Toyota 4Runner and the 2004 Toyota Tacoma. The set includes two direct replacement rotors for the front axle.
Cross-drilled and slotted friction faces let gases and dust escape from between the pad and rotor during braking. That design supports a steadier pedal feel and less brake fade. The rotors are cast iron with a zinc-plated finish, sold as a set of two front rotors for the 4Runner and the 6-lug Vdc Tacoma.
Key features
- Cross-drilled and slotted friction surface that lets gases and dust escape between pad and rotor
- Chamfered cross-drilled holes, which Baer says help minimize stress cracking
- Enhanced vane structure that Baer describes for cooling and durability
- Zinc-plated finish for a bright look behind open-center wheels
- Mill balanced, direct replacement design
- One-piece, full cast vented rotor in premium grade
Before you buy
Front rotors and pads wear as a pair, so the pads you choose should be rated for the same use as the rotors. Heavy towing and steep grades place more heat into the front brakes, and a rotor with slots and drilled holes handles that heat differently from a plain disc.
Cast iron rotors are the common choice for these trucks because they absorb heat well and cost less to replace than many alloy options. Check the hub face and wheel bearings during the same job, since runout or a loose bearing will shorten the life of new rotors.
Rotor thickness should be measured before you install anything. Compare the reading with the discard thickness for this part and replace the rotor if it is at or below that figure.
- Replace front pads at the same time as the rotors
- Clean the hub face and remove any rust before mounting
- Torque lug nuts in a star pattern and recheck them after the first drive
Specifications
| Brand | Baer Brakes |
|---|---|
| Part number | 31204-020 |
| UPC | 844165002505 |
| Packaging | Set of two rotors |
| Axle | Front |
| Drive | 2WD, 4WD |
| Rotor construction | One-piece, full cast |
| Material | Cast iron |
| Disc finish | Zinc plated |
| Surface type | Slotted and cross-drilled |
| Solid or vented | Vented |
| Brake surface | Directional |
| Grade | Premium |
| Outside diameter | 318.52 |
| Overall height | 70.6 |
| Discard thickness | 20.1 |
| Mounting bolt hole circle diameter | 140 |
| Stud/lug hole quantity | 6 |
| ABS tone ring included | No |
| Emission code | 6 |
| Country of origin | CN |
Vehicle fitment
The manufacturer fitment list covers the front position on two applications: the 1995-2002 Toyota 4Runner, with RWD and 4WD drive and 12.56-inch front rotors, and the 2004 Toyota Tacoma, with RWD and 4WD drive and 6-lug Vdc trucks that use 318.5 mm front rotors.
Not covered: 4Runner models from 2003 onward and Tacoma model years other than 2004, including 2005 and later Tacoma trucks. Confirm your vehicle’s year, model and trim before ordering.
Installation notes
The braking surface is directional, so orient each rotor the way Baer intends for its slots and drilled holes. Brake pads are not part of this set, so plan to fit compatible pads at the same time.
What’s included
Two front Claw performance rotors, one for each side.
Not included: Brake pads are not part of this set, and Baer lists no ABS tone ring with the rotors.
