Overview
The Baer Brakes 6921227 is a right-side, 1-piece slot drilled and zinc-plated replacement brake rotor with a 12.000 inch outside diameter and a 1.020 inch nominal thickness. Baer Brakes offers it as a service part for select Baer Brake systems, sold one rotor at a time. The cast iron rotor is vented and directional, with a drum-in-hat design, a 3.055 inch center hole and a 5 x 5.00 inch bolt circle with five studs.
The overall height is 2.4 inches. The slotted and drilled surface with zinc plating is the main point of difference from plain-finish Baer rotors, so confirm the finish you need against the rotor you are replacing.
Key features
- Full cast, one-piece cast iron construction
- Curved vane design intended for optimum cooling
- Dynamic balanced for vibration-free performance
- Slot drilled surface with a zinc-plated finish
- Drum in hat design on a directional right-side rotor
- Vented performance grade rotor
Drum in hat and hub fit
A drum in hat rotor has an integrated hat section that bolts to the hub, so the hub face and the rotor hat must sit flush. Rust, paint or debris between them can cause runout that shows up as pedal pulsation. Clean both surfaces thoroughly before mounting, and check that the studs seat properly in the hat holes.
Because this rotor is sold as one part, plan to replace the matching rotor on the other side at the same time for even braking. Inspect the hat section for cracks near the stud holes, and check the friction face for heat checking. Bed in new pads after installation and recheck lug torque after the first few stops.
- Clean the hub and hat mating faces
- Check stud condition before mounting
- Replace both sides together when possible
- Recheck lug torque after the first drive
Specifications
| Brand | Baer Brakes |
|---|---|
| Part number | 6921227 |
| UPC | 90127962213 |
| Axle position | Right |
| Outside diameter | 12.000 in |
| Nominal thickness | 1.020 in |
| Overall height | 2.4 in |
| Center hole diameter | 3.055 in |
| Bolt pattern (stud/lug hole circle) | 5 x 5.00 in |
| Stud/lug quantity | 5 |
| Material | Cast iron |
| Construction | Full cast, one piece |
| Rotor type | Vented |
| Brake surface | Directional |
| Surface type | Slotted, drilled and zinc plated |
| Drum in hat | Yes |
| ABS tone ring included | No |
| Grade type | Performance |
| Emission code | 6 |
| Country of origin | USA |
| Sold as | Each |
Vehicle fitment
It is a replacement rotor for select Baer Brake systems. Match it to the Baer system you own using the right-side position, the 3.055 inch center hole and the 5 x 5.00 inch bolt circle. Verify the fit for your vehicle’s year, model and trim before buying.
Because no vehicle is named, the rotor should not be assumed to fit a hub that only shares its diameter. Confirm your vehicle’s year, model and trim before ordering.
Installation notes
The drum-in-hat design and directional right-side orientation mean this rotor belongs only on the right hub, and a left-side rotor must be bought separately. Because rotors are sold individually, plan for two if you service an axle pair. Check the 5 x 5.00 inch bolt circle and 3.055 inch center hole against the hub, and have a qualified technician verify the completed installation.
What’s included
One right-side replacement rotor, sold as each.
Not included: the left-side rotor and other Baer Brake system parts.












