Overview
The Baer Brakes 6910331 is a 1-piece plain-finish replacement brake rotor for the left side of select Baer Brake systems. Its 12.000 Inch outside diameter, 1.100 Inch thickness and 5 x 4.50 Inch bolt pattern define its footprint, and the tall hat design carries a 2.781 Inch center hole.
The rotor is cast from cast iron as one piece. The plain surface means no slots are cut into the friction face, and the directional design is intended for the left hub only, so each entry covers a single rotor.
Key features
- Plain surface with no slots cut into the friction face.
- Curved vane design that Baer Brakes says aids cooling.
- Dynamic balanced to reduce vibration, per the brand.
- Purpose built castings that the brand describes as premium material.
- Directional design for the left hub only.
- Tall hat with a 2.781 Inch center hole.
Choosing slotted or plain
Plain friction faces are simpler in construction and are common on daily-driven vehicles where smooth pad contact is the priority. Slotted faces are often chosen where clearing debris and gases from the pad surface matters more, though they can wear pads faster under heavy use. Match the finish to the service you need, and avoid mixing finishes on the same axle without checking the setup.
Care for a plain rotor is straightforward. Clean the hat and friction face of grease before installation, tighten the lug hardware in a star pattern, and inspect the surface for hard spots or blue discoloration after heavy stops. Glazed pads can be lightly scuffed to restore bite, and the rotor should be replaced once wear reaches the limit in the service manual.
- Clean the hub face before mounting
- Check pad thickness at each brake service
- Use anti-seize sparingly, and only on the hub
Specifications
| Brand | Baer Brakes |
|---|---|
| Part number | 6910331 |
| UPC | 844165035114 |
| Axle side | Left |
| Rotor type | 1-piece, full cast, vented |
| Surface type | Plain |
| Directional brake surface | Yes |
| Outside diameter | 12.000 Inch |
| Nominal thickness | 1.100 Inch |
| Center hole diameter | 2.781 Inch |
| Stud/lug hole circle diameter | 4.50 Inch |
| Stud/lug hole quantity | 5 |
| Overall height | 2.228 |
| Material | Cast iron |
| Grade type | Performance |
| Drum in hat | No |
| ABS tone ring included | No |
| Emission code | 6 |
| Country of origin | USA |
Vehicle fitment
No vehicle is named for this rotor, so no year, make, model or chassis is confirmed. Baer Brakes presents it as a replacement for select Baer Brake systems.
Confirm your vehicle’s year, model and trim before ordering. A plain-finish rotor and a slotted rotor carry different part numbers, so match the finish to the Baer specification.
Installation notes
Mount this rotor on the left hub only. Check the 5 x 4.50 Inch bolt pattern and 2.781 Inch center hole against your hub first. Support the vehicle on stands before removing the old rotor.
What’s included
One 1-piece plain-finish replacement rotor for the left side.
Not included: the ABS tone ring and the right-side rotor.
