Overview
The Baer Brakes 4301019HO is an Extreme front disc brake kit in Hugger Orange for 1999–2023 GM 1500 trucks and 2000–2023 GM 1500 SUVs. It pairs a 15 inch vented one-piece rotor with a 6-piston 6S Monoblock caliper.
Application lines read 99-25 for C/K 1500 trucks and 00-20 for C/K 1500 SUVs. The rotor is one-piece, slotted, drilled and zinc plated, and the caliper is a fixed design with staggered pistons that help even out pad wear.
Key features
- One-piece Monoblock 6-piston 6S caliper assembled in Phoenix, AZ
- Caliper body machined from U.S.-sourced 2618 aluminum forging
- Powder coated finish in Hugger Orange
- Abutments, pistons and noise clips are stainless steel
- Staggered piston layout to reduce uneven pad wear
- Double seals guard against dust, weather and pressure
- Vented, slotted, drilled and zinc-plated one-piece rotor
- Matched to the D1247 pad type
Pad and rotor pairing
Pads and rotors wear as a pair, so the friction material should match the rotor surface and the way the truck is used. Pads matched to the D1247 type sit well with a slotted, drilled rotor, but a fresh pad surface needs time to seat before it reaches full bite. Heavy stops on uncured pads can glaze the surface and lead to noise or fade.
Drilled and slotted rotors help clear gas and debris from the pad face, though they also expose more edges to heat and moisture. Look for hairline cracks around the drilled holes during periodic inspection, and replace the rotor when grooves or cracks become deep. Keeping the caliper slides clean and lubricated lets the pads release evenly and extends pad life.
- Bed in new pads gradually before heavy use
- Clean and lubricate caliper slide pins during service
- Check drilled holes for hairline cracks
- Replace pads and rotors together when wear is uneven
Specifications
| Brand | Baer Brakes |
|---|---|
| Part number | 4301019HO |
| UPC | 90127939321 |
| Axle | Front |
| Sold as | Kit |
| Caliper | 6S Monoblock, 1-piece, 6 pistons, fixed |
| Caliper color | Hugger Orange |
| Rotor type | 1-piece, vented |
| Rotor outside diameter | 15.0 inch |
| Rotor thickness (in) | 1.18 |
| Rotor surface | Slotted, drilled and zinc plated |
| Pad FMSI number | D1247 |
| Hose material | Re-uses OE hoses |
| Lug count | 6 lug |
| Wheel bolt pattern | 6×5.50 |
| Minimum wheel diameter | 19.0 inch |
| Template | N070U |
| Emission code | 6 |
| Grade | Performance |
| Country of origin | USA |
Vehicle fitment
Listed vehicles include Cadillac Escalade (2002–2023), Escalade ESV (2003–2023), Escalade EXT (2002–2013), Chevrolet Avalanche (2007–2013), Avalanche 1500 (2002–2006), Silverado 1500 (1999–2023), Suburban (2015–2023), Suburban 1500 (2000–2014), Tahoe (2000–2023), GMC Sierra 1500 (1999–2023), Yukon (2000–2023), Yukon XL (2015–2023) and Yukon XL 1500 (2000–2014).
Not on the list: Silverado and Sierra 2500 or 3500 heavy-duty models, and Escalade, Tahoe or Yukon years outside the ranges shown. Confirm your vehicle’s year, model and trim before ordering.
Installation notes
The factory hoses are re-used, so the lines stay in place and should be inspected during the install. Use template N070U to confirm wheel clearance, since the minimum wheel diameter is 19.0 inch. Brake work affects stopping, so a qualified technician should verify the finished installation.
What’s included
The kit includes the 6S Monoblock caliper, the 15 inch one-piece rotor, and all mounting brackets and hardware.
Not included: brake hoses, because the factory hoses are re-used.
