Overview
The Baer Brakes 4301019GB Extreme front brake kit in Grabber Blue fits 1999–2023 GM 1500 trucks and 2000–2023 GM 1500 SUVs, including the Chevrolet Silverado 1500 and GMC Sierra 1500. It pairs a 15 inch vented one-piece rotor with a 6-piston 6S caliper.
Factory hoses are re-used, and the caliper is matched to D1247 pads with a rotor thickness of 1.18. Application lines run 99-25 for trucks and 00-20 for SUVs. The kit suits wheels 19 inch or larger.
Key features
- One-piece Monoblock 6-piston 6S caliper made in Phoenix, Arizona
- Caliper body CNC machined from 2618 aluminum forging, sourced in the U.S.
- Powder coated finish in Grabber Blue
- Stainless steel pistons, abutments and noise suppression clips
- Staggered pistons to reduce uneven pad wear
- Dual seals for dust, weather and pressure
- Slotted, drilled and zinc-plated one-piece rotor
Hoses and wheel clearance
Brake hoses are the part of a front brake job that often gets overlooked. Rubber hoses soften and crack with age and heat, and a hose that looks sound from the outside can still swell under pressure. When hoses are re-used, inspect them for cracks, bulges, leaks at the fittings and chafing against suspension parts before the caliper is bolted back on. Replacing a hose during the job costs little compared with a second teardown.
Wheel clearance deserves the same attention. A larger rotor and a 6-piston caliper take up more room inside the wheel, and offset changes can bring the wheel closer to the caliper body. Confirm clearance with the template before mounting tires, and check again after new tires or suspension changes. Fresh brake fluid and a fully bled system give the firmest pedal before the first drive.
- Inspect hoses for cracks and bulges
- Check fittings for seepage after bleeding
- Re-check lug nut torque after the first drive
Specifications
| Brand | Baer Brakes |
|---|---|
| Part number | 4301019GB |
| UPC | 90127939307 |
| Axle | Front |
| Sold as | Kit |
| Caliper | 6S Monoblock, 1-piece, 6 pistons, fixed |
| Caliper color | Grabber Blue |
| 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
It fits 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). Confirm fit for your vehicle’s year, model and trim before ordering.
Not on the list: Silverado and Sierra heavy-duty 2500 and 3500 models, and Escalade, Tahoe or Yukon years outside the ranges shown. Confirm your vehicle’s year, model and trim before ordering.
Installation notes
The original hoses are re-used, so plan to inspect them when the caliper and rotor are swapped. Measure wheel clearance against template N070U before fitting 19 inch or larger wheels. Brake work should be verified by a qualified technician before the vehicle is driven.
What’s included
The kit includes the 6S Monoblock caliper, the 15 inch one-piece rotor, and all mounting brackets and hardware.
Not included: new brake hoses; the kit works with your existing hoses.














