Overview
The Baer Brakes 4301019MG is an Extreme front disc brake kit in Monster Green for 1999–2023 GM C/K 1500 trucks and 2000–2023 GM C/K 1500 SUVs, built around a 15 inch vented one-piece rotor and a 6-piston 6S Monoblock caliper.
The application lines cover 99-25 for trucks and 00-20 for SUVs, and the fitment runs through 2023 models. The caliper is a one-piece Monoblock design made in Phoenix, Arizona, and the kit is matched to the D1247 pad type. The system fits most wheels 19 inch or larger.
Key features
- One-piece Monoblock 6-piston 6S caliper, CNC machined from a 2618 aluminum forging
- Powder coated caliper finish in Monster Green
- Stainless steel pistons with abutments and noise suppression clips
- Staggered pistons aimed at more even pad wear
- Dual seals against dust, weather and pressure
- One-piece slotted, drilled, zinc-plated vented rotor
- Designed for the D1247 pad type
- Mounting brackets and hardware included
Towing and heavy loads
Trucks that tow or haul put more heat into the front brakes than daily driving does. A larger rotor and a Monoblock caliper handle that heat better, but pad compound, fluid type and driving habits still determine how the system performs under load. Long downhill runs with a trailer are where brake fade shows up first, so keep the fluid fresh and avoid riding the pedal.
Off-road use adds water, mud and grit. After deep crossings, check the hub seals and dust caps for moisture and inspect the rotor for scoring. Gravel and sand can wear pads faster than paved roads, so a brief look at the pad thickness after each trip is a simple habit that prevents uneven wear.
- Use brake fluid suited to high-temperature use
- Check the rear brakes for matching wear and adjustment
- Inspect hub seals after deep water crossings
- Watch pad thickness after sandy or gravel trips
Specifications
| Brand | Baer Brakes |
|---|---|
| Part number | 4301019MG |
| UPC | 90127939345 |
| Axle | Front |
| Sold as | Kit |
| Caliper | 6S Monoblock, 1-piece, 6 pistons, fixed |
| Caliper color | Monster Green |
| 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
The manufacturer fitment list covers 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 heavy-duty 2500 and 3500 models, and any Escalade, Tahoe or Yukon outside the years shown. Confirm your vehicle’s year, model and trim before ordering.
Installation notes
The kit re-uses your factory brake hoses, so inspect them during the install. Before mounting wheels, check clearance with template N070U, and remember the minimum wheel size is 19.0 inch. Brake changes affect stopping, so have a qualified technician verify the work before the truck is driven on public roads.
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; the kit re-uses your original hoses.
