Overview
The Baer Brakes 6919184 is a left-side, 12-inch plain-finish replacement brake rotor for select Baer Brake systems, specifically early Big Bearing Systems. It is a one-piece vented rotor made of cast iron.
The rotor uses a curved vane design that Baer Brakes says aids cooling, and it is dynamically balanced to run smoothly. Its drum-in-hat construction and directional design mean it is made only for the left side of the vehicle, and a single part number covers one rotor.
Key features
- Left-side directional rotor for the left side of the vehicle only
- Plain surface finish
- Curved vane pattern for cooling
- Dynamic balanced for smooth, vibration-free running
- Purpose-built one-piece full cast construction
- Drum in hat with a modified drum lip for early Big Bearing Systems
Working with a left-side rotor
Rotors of this design are fitted on the braking side that matches their axle position, so the left-side unit belongs on the left only. The directional brake surface and drum-in-hat construction mean the rotor works best when it runs true against a clean hub face. Before mounting, wipe the hub surface, check for rust or debris, and confirm the rotor sits flat against the hub.
On the road, a rotor that is worn, warped or heat-damaged can cause pulsation through the pedal and a longer stopping distance. Off road, the same wear shows up as vibration during heavy braking. Inspect the rotor whenever the pads are replaced, look for grooves, heat spots and uneven wear, and keep the rest of the brake assembly in good condition so the new rotor is not stressed unevenly.
Specifications
| Brand | Baer Brakes |
|---|---|
| Part number | 6919184 |
| UPC | 90127961506 |
| Axle position | Left |
| Brake surface | Directional |
| Surface type | Plain |
| Rotor type | Vented, one piece |
| Construction | Full cast, one piece |
| Material | Cast iron |
| Outside diameter | 12 in |
| Nominal thickness | 1.02 in |
| Overall height | 2.406 in |
| Center hole diameter | 2.78 in |
| Stud/lug hole circle diameter | 4.50 in and 4.75 in |
| Stud/lug hole quantity | 5 |
| Drum in hat | Yes |
| ABS tone ring included | No |
| Grade type | Performance |
| Emission code | 6 |
| Notes | Machined specific for Big Bearing Systems |
| Country of origin | USA |
Vehicle fitment
This rotor is made for select Baer Brake systems, specifically early Big Bearing Systems. Match your hub and bearing setup to that configuration, and confirm your vehicle’s year, model and trim before ordering.
Confirm your vehicle’s year, model and trim before ordering.
Installation notes
Install this rotor on the left side only, since it is directional and side-specific. Because each part number is one rotor, a pair means ordering the right-side rotor separately. Baer Brakes machined it for Big Bearing Systems, so verify your hub and bearing setup matches before fitting. Given the safety role of brake rotors, a qualified technician should check fit before the vehicle returns to the road.
What’s included
A single left-side replacement rotor.
Not included: The right-side rotor and an ABS tone ring are not included.












