Overview
The Baer Brakes 6919237 is a left-side, one-piece full cast replacement rotor with a drum in hat, a slotted, drilled and zinc-plated surface and a 12 inch outside diameter, made for select Baer Brake systems. The rotor is 1.02 inch in nominal thickness and has a modified drum lip for early big bearing systems.
Unlike the two-piece rotors in this range, the friction ring and hub are cast as one piece. The mounting pattern is 5 holes on a 5 inch bolt circle, with a 2.78 inch center hole that the title describes as a register. No vehicle is named for part number 6919237, so verify the Baer Brake system and drum setup before fitting it.
Key features
- One-piece full cast construction
- Drum in hat design with a modified drum lip for early big bearing systems.
- Slotted, drilled and zinc-plated surface
- Vented, directional rotor for the left side
- Dynamic balanced for vibration-free running
- Cast iron construction.
Drum in hat considerations
A drum in hat rotor combines a rotor and a parking brake drum in one casting, so the parking brake shoes sit inside the hat when the rotor is mounted. Shoes, adjusters and the drum surface are wear items that are often serviced at the same time. Check the shoes for even contact and inspect the drum surface while the rotor is off the vehicle.
A one-piece casting is usually replaced as a whole when the friction face wears below its usable thickness. Inspect the hat for cracks, especially around the bolt holes and the register, and clean any rust from the register before mounting. Bearing play and hub condition affect runout, so check them before fitting the new rotor.
- Check the parking brake shoes when the drum is open
- Clean rust from the register before mounting
- Inspect the bolt holes for cracks or elongation
- Replace wheel bearings if they show play
Specifications
| Brand | Baer Brakes |
|---|---|
| Part number | 6919237 |
| UPC | 844165054528 |
| Axle position | Left |
| Construction | Full cast, one piece |
| Drum in hat | Yes |
| Surface type | Slotted, drilled and zinc plated |
| Brake surface | Directional |
| Rotor style | Vented |
| Material | Cast iron |
| Outside diameter | 12 inch |
| Nominal thickness | 1.02 inch |
| Center hole diameter | 2.78 inch |
| Overall height | 2.406 |
| Stud/lug hole circle diameter | 5 inch |
| Stud/lug hole quantity | 5 |
| Grade type | Performance |
| Emission code | 6 |
| ABS tone ring included | No |
| Country of origin | USA |
Vehicle fitment
Match the 5 hole, 5 inch bolt circle and the 2.78 inch center hole to your hub before fitting this rotor.
Installation notes
The 2.78 inch register is the centering diameter, so confirm it matches the hub before fitting the rotor. Check that the drum lip suits your early big bearing setup. The ABS tone ring is not included.
What’s included
One left-side, one-piece full cast rotor with a drum in hat, sold as a left-side replacement.
Not included: ABS tone ring.
