Overview
The Baer Brakes 4302421HO is an Extreme Plus rear brake kit for 1999-2019 GM C/K1500 trucks and 2000-2020 GM C/K1500 SUVs with OE rear disc brakes and a manual park brake. It pairs a 1-piece Monoblock 6-piston 6S caliper, finished in Hugger Orange, with a 15 inch 2-piece slotted, drilled, zinc-plated rotor on a 6×5.50 bolt pattern.
Baer’s rear package suits owners who want the six-piston Monoblock layout with an orange caliper. Rotors and brackets come pre-assembled with NAS high grade stainless hardware. The kit leaves the factory hoses and manual park brake in service, so it adds the caliper, rotors, brackets and hardware.
Key features
- 1-piece Monoblock six-piston 6S caliper, made in Phoenix, Arizona
- CNC machined from U.S.-sourced 2618 aluminum forging
- Powder coated Hugger Orange finish
- Staggered pistons to help minimize uneven pad wear
- Stainless steel pistons, abutments and noise suppression clips
- Dual seals for dust, weather and pressure
- Slotted, drilled, zinc-plated 2-piece rotor with billet aluminum hat
Caring for powder coated calipers
Powder coated calipers keep their color best when they are kept clean. Brake dust and road salt collect around the pads and bridge area, so rinsing the wheels and caliper with water during regular service helps prevent corrosion under the finish. Mild soap is the safer choice for cleaning, while harsh solvents and abrasive pads can dull or lift the coating.
Heat from braking can affect any painted surface, so avoid spraying cold water on hot brakes after a hard run. Minor chips can be touched up, and the caliper should be kept away from grit that could wear through the finish. A careful wash each season is a simple routine that keeps the caliper looking as it did when fitted.
- Rinse brake dust off during tire rotations
- Use a mild, non-abrasive cleaner rather than solvents
- Inspect for chips near the mounting bolts
- Let hot brakes cool before rinsing
Specifications
| Brand | Baer Brakes |
|---|---|
| Part number | 4302421HO |
| UPC | 90127943939 |
| Sold as | Kit |
| Caliper | 6S, 1-piece Monoblock, 6-piston, floating |
| Caliper color | Hugger Orange |
| Axle | Rear |
| Rotor outside diameter | 15.0 inch |
| Rotor construction | Vented, 2-piece, slotted, drilled, zinc plated |
| Rotor thickness | 1.25 |
| Pad FMSI | D1247 |
| Lug count | 6 lug |
| Wheel bolt pattern | 6×5.50 |
| Min wheel diameter | 19.0 inch |
| Hoses | Re-uses OE hoses |
| Park brake | Not included, re-uses OE park brake |
| Template | N228U |
| Emission code | 6 |
| Country of origin | USA |
Vehicle fitment
The vehicles this kit fits are 1500-series trucks and full-size SUVs with the model years listed below, each with OE rear disc brakes and a manual park brake:
- Cadillac Escalade, 2002-2020
- Cadillac Escalade ESV, 2003-2020
- Cadillac Escalade EXT, 2002-2013
- Chevrolet Avalanche, 2007-2013
- Chevrolet Avalanche 1500, 2002-2006
- Chevrolet Silverado 1500, 1999-2019
- Chevrolet Suburban, 2015-2020
- Chevrolet Suburban 1500, 2000-2014
- Chevrolet Tahoe, 2000-2020
- GMC Sierra 1500, 1999-2019
- GMC Yukon, 2000-2020
- GMC Yukon XL, 2015-2020
- GMC Yukon XL 1500, 2000-2014
Silverado and Sierra heavy-duty models are absent from the list, so they fall outside this kit. Confirm your vehicle’s year, model and trim before ordering.
Installation notes
Verify OE rear disc brakes and a manual park brake first, since this kit does not replace the factory hoses or park brake. Compare the 15 inch rotor with your wheels, which should be 19 inch or larger, using template N228U.
What’s included
The kit includes the Hugger Orange 6S caliper, 15.0 inch 2-piece rotors with NAS high grade stainless hardware, and all brackets and hardware.
Not included: factory hoses and the manual park brake assembly.
