Overview
The Baer Brakes 6911227 is a left-side, 12 inch, 1-piece replacement brake rotor with slots, drilled holes and zinc plating, made for select Baer Brake systems. It is a vented full cast iron rotor with a drum in hat design, sold one at a time.
The stud pattern is 5 studs on a 5 inch hole circle, with a 3.055 inch center hole. The rotor is directional, made for the left side, and uses curved vanes for cooling with dynamic balancing for smoother operation. Confirm fit for your vehicle’s year, model and trim before ordering.
Key features
- Slotted and drilled friction surface with zinc plating
- One-piece full cast body in cast iron
- Curved vanes in a vented layout for cooling
- Directional face built for the left side only
- Dynamic balanced for smoother operation
- Drum in hat design.
- Five studs on a 5 inch hole circle
Drum in hat rotor basics
A drum in hat rotor combines the disc braking face with an integral drum for the parking brake. Because the drum sits inside the hat, the parking brake shoes and hardware are close to the rotor and are usually inspected at the same time. Clean the hub and mounting face before fitting, and make sure the rotor sits flat so the braking face runs true.
Care is mostly about inspection. Check the friction surface for scoring and heat cracks, look inside the drum area for worn shoes or contamination, and replace parts that show wear. Keep the wheel bearings and seals in good condition, since a leak can contaminate both the rotor face and the pads. Choose pads sized for this rotor and bed them in after installation.
- Inspect parking brake shoes when the rotor is off
- Keep grease and brake fluid off the friction face
- Replace seals if the bearings leak
Specifications
| Brand | Baer Brakes |
|---|---|
| Part number | 6911227 |
| UPC | 90127961360 |
| Material | Cast iron |
| Construction | Full cast, one piece |
| Surface type | Slotted, drilled and zinc plated |
| Outside diameter | 12 in |
| Nominal thickness | 1.02 in |
| Overall height | 2.4 in |
| Center hole diameter | 3.055 in |
| Stud/lug quantity | 5 |
| Stud/lug hole circle diameter | 5 in |
| Rotor type | Vented |
| Brake surface | Directional |
| Axle side | Left |
| Drum in hat | Yes |
| ABS tone ring included | No |
| Emission code | 6 |
| Sold as | Each |
| Country of origin | USA |
Vehicle fitment
Select Baer Brake systems are the intended applications here.
A rotor with another stud count or hole circle will not match this 5 stud, 5 inch pattern, even within the same Baer line. Confirm your vehicle’s year, model and trim before ordering.
Installation notes
The rotor is directional and made for the left side, so check the side before mounting it. The drum in hat design is part of this casting, so it changes how the rotor sits compared with a plain hat rotor. The ABS tone ring is not included. Rotors are sold individually. Support the vehicle on stands rather than a jack alone.
What’s included
One left-side replacement rotor, sold as each.
Not included: ABS tone ring.
