Overview
Black rear brake kit 4302136B from Baer Brakes is built for GM 1500 trucks and GM 1500 SUVs that already have rear disc brakes and a manual park brake. The Extreme system centers on a six-piston monoblock caliper, the 6S, mounted to a 14-inch slotted, drilled rotor.
Stainless steel pistons, abutments and noise suppression clips make up the caliper design, and the powder coated body is CNC machined from 2618 aluminum forging in Phoenix, AZ. The kit covers 1999–2019 GM 1500 trucks and 2000–2020 GM 1500 SUVs with rear disc brakes.
Key features
- Black powder-coated 6S monoblock caliper with six pistons
- Pistons, abutments and noise clips are stainless steel
- Staggered pistons help limit uneven pad wear
- Dual seal design for dust, weather and pressure
- One-piece slotted and drilled 14-inch rotor, zinc plated
- Designed for the D1247 pad type
- Bracket and hardware kit included with the caliper
- Recommended for wheels 18 inches or larger
Choosing a rotor and pad set
Black calipers pair with the same rotor and pad specifications as other finishes, so color is a cosmetic choice rather than a fit decision. When replacing rear pads on GM trucks, pick a compound suited to how the vehicle is driven. Street driving usually favors a quieter, longer-wearing compound, while towing and frequent stops call for a pad that handles higher temperatures.
Rotor condition matters as much as the pad. A warped or thin rotor can make a new pad pulse under light braking, so measure thickness and runout before reinstalling. Replacing the rotor and pads together avoids mismatched wear and gives a more even bite across the axle.
- Match pad compound to driving habits
- Measure rotor thickness before reuse
- Clean caliper slide pins during service
- Replace worn hardware clips with new ones
Specifications
| Brand | Baer Brakes |
|---|---|
| Part number | 4302136B |
| UPC | 844165042655 |
| Sold as | Kit |
| Axle | Rear |
| Caliper | 6S, one-piece monoblock, six pistons, floating |
| Caliper color | Black |
| Caliper finish | Powder coated |
| Rotor outside diameter | 14.0 inches |
| Rotor thickness | 1.15 inch |
| Rotor type | 1-piece |
| Rotor style | Vented, slotted, drilled |
| Rotor material | Iron with aluminum hat, zinc plated |
| Pad type | D1247 (FMSI) |
| Wheel bolt pattern | 6×5.50 |
| Lug count | 6 lug |
| Minimum wheel diameter | 18.0 inches |
| Template | N228P |
| Emission code | 6 |
| Grade | Performance |
| Hose | Re-uses OE |
| Park brake | Manual park brake; park brake hardware not included |
| Country of origin | US |
Vehicle fitment
The kit covers 2002–2020 Cadillac Escalade, 2003–2020 Cadillac Escalade ESV, 2002–2013 Cadillac Escalade EXT, 2007–2013 Chevrolet Avalanche, 2002–2006 Chevrolet Avalanche 1500, 1999–2019 Chevrolet Silverado 1500, 2015–2020 Chevrolet Suburban, 2000–2014 Chevrolet Suburban 1500, 2000–2020 Chevrolet Tahoe, 1999–2019 GMC Sierra 1500, 2000–2020 GMC Yukon, 2015–2020 GMC Yukon XL and 2000–2014 GMC Yukon XL 1500.
Only rear disc brake applications with a manual park brake are covered, so front brake kits are a different part. Vehicles from 2021 onward are not on the list. Confirm your vehicle’s year, model and trim before ordering.
Installation notes
Use the N228P template to check the 14-inch rotor against your wheels, since the minimum wheel diameter is 18.0 inches. Factory hoses are re-used, and the park brake hardware is not supplied, so keep your original park brake parts in place.
What’s included
The kit includes the black 6S caliper, the 14-inch slotted and drilled rotor, brackets and hardware.
Not included: lug nuts and park brake hardware.
