Need 2003 Chevy Silverado 1500 brake pads, rotors, or hardware? 2003 is a GMT800 Silverado 1500 (1999–2006). This page is only that 1500 pickup. It is not Silverado 2500/3500 HD, and it is not a van.
Crew vs extended cab, hybrid, and 4-wheel-steering packages change pad and rotor numbers on this generation. 4WD vs RWD still changes the front hoses. A growl or pedal pulsation is usually a rotor. A squeal on the first stop is often glazed pads or missing hardware clips.
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Jump to: Shop notes · Works Kit · Front · Rear · Fitment notes
GMT800 Silverado 1500 (1999–2006) brake shop notes — 2003
2003 Chevy Silverado 1500 brake — GMT800 shop focus
Model-year 2003 sits in the GMT800 Chevy Silverado 1500 window (1999–2006). It is not 2500/3500 HD.
Catalog applications for GMT800 (1999–2006) often repeat the same SKUs across adjacent years in this generation — that is expected. This URL stays year-specific for 2003 with a self-canonical and year-locked heading/links. On-page catalog SKUs called out here include Wagner brake, WAGNER BD125654E, WAGNER BD125655E, WAGNER QC7851, WAGNER ZD7851, WAGNER H5645, WAGNER BH145206, WAGNER QC792B — use only these rows (and the lists below), not torque charts we do not publish. Cross-shop the same model year: 2003 Chevy Silverado 1500 suspension parts · 2003 Chevy Silverado 1500 shock parts.
These are brake shop notes for the GMT800 Chevy Silverado 1500 that includes 2003. Crew/extended cab, hybrid, and 4-wheel-steering packages can change pad and rotor numbers. They are not for Silverado 2500/3500 HD or 2007+ GMT900.
What usually brings people here
- Pedal pulsation or a growl that rises with road speed → rotor (BD125654E / BD125655E). Confirm stud count and diameter against the Front/Rear lists before ordering.
- Squeal on the first stop or after a short drive → glazed pads (QC7851 / ZD7851) or missing/worn abutment clips (H5645). ThermoQuiet boxes that say “hardware in the box” still deserve a visual check of the old clips.
- Soft or sinking pedal after a visual leak check → inspect the flexible hoses on this page (e.g. BH145206) for cracks, bulges, or wet fittings, then bleed with the correct fluid. This page does not list master cylinders or ABS modulators — stay with the SKUs shown.
ThermoQuiet vs QuickStop
Front pads on this page: ThermoQuiet QC7851 vs QuickStop ZD7851. ThermoQuiet is the quieter ceramic / OE-style path (often with hardware in the box); QuickStop is the value ceramic alternative — same application, different line. Rear pads: ThermoQuiet QC792B vs QuickStop ZD792B.
Hose / drivetrain fitment forks
- Left, 4WD: BH145206
- Left, AWD: BH145206
- Left, RWD , 4WD , AWD: BH145207
- Right, RWD: BH142763
- Rear disc hardware kit, Except 9-1/2″ Ring Gear, 4-wheel steering: H5645
- ThermoQuiet ceramic (hardware in the box), except sport package: QC792B
- QuickStop ceramic, except sport package: ZD792B
While you’re in there
While the calipers are off, inspect hose fittings for wetness and make sure the guide pins slide freely. Fresh abutment clips (H5645) are cheap insurance when the old ones are rusty or missing. If the truck also clunks or wanders, see 2003 Chevy Silverado 1500 suspension parts for ball-joint / tie-rod notes before you button the knuckle back up.
Shop notes only — not a service manual. Use the factory procedure or a Haynes/Chilton manual for wrench work, torque, and safety steps. Leave a comment with 4×2 vs 4×4, coil vs air (if equipped), and the symptom if you want a part-number check.
Works Kit — 2003 Chevy Silverado 1500 front brake job (GMT800 · not GMT900 2007+ · confirm 4×4 vs 4×2 hub · order it all once, do it right)
Wagner stack already Amazon-linked for 2003: QC7851 + BD125654E ×2 + H5645. Confirm stud count and rotor diameter callouts on this 2003 list before checkout. order it all once, do it right. Canonical to 2003 vs 2012-honda-civic-brake-parts.
1. Front pad + rotor kit
2. Soft-pedal hose add-on (only if hoses look cracked/bulged)
3. Rear job (if doing both axles)
Search Amazon for 2003 Chevy Silverado 1500 Wagner brakes · Full lists are below.
2003 Chevy Silverado 1500 front brakes
Pads
Rotors
- 304 mm, E-coat: BD125654E
Hardware
- Front disc hardware kit (OE abutment clips): H5645
Hoses (4×2 vs 4×4)
- Left, 4WD: BH145206
- Left, AWD: BH145206
- Left, RWD Right, 4WD Right, AWD: BH145207
- Right, RWD: BH142763
2003 Chevy Silverado 1500 rear brakes
Pads
- ThermoQuiet ceramic (hardware in the box), except sport package: QC792B
- QuickStop ceramic, except sport package: ZD792B
- ThermoQuiet ceramic, sport package: QC9751
- QuickStop ceramic, sport package: ZD9751
Rotors
Parking brake shoes and hardware
- Parking brake shoe: Z781
- Parking brake hardware kit: H7256
- Rear disc hardware kit, Except 9-1/2″ Ring Gear, 4-wheel steering: H5645
Fitment notes
These Wagner numbers come from the WC900 1995–2019 catalog (Federal-Mogul 2019), Chevrolet Silverado 1500 (GMT800) rows whose year range covers 03 (2003). Confirm 2WD/4WD and brake package before ordering. Superscript footnotes on the pad/rotor columns (1 hardware in the box, 2 OE semi-metallic, 4 optional ceramic, 8 E-coat, 9 OE abutment clips, 11 wear sensor) are not part of the SKU.
Do not use Silverado 2500/3500 HD pads, 1500 Classic-only numbers, or 2014+ K2XX rotors on this GMT800 1500.
Related: 2003 Chevy Silverado 1500 suspension parts. Diagrams for the truck are on the Silverado 1500 catalog kits. Brake diagnosis steps: brake system repair manual.
Leave a comment with 4×2 vs 4×4, cab style, and confirm 1500 (not 2500/3500) if you want a part-number check. #HAPPYMOTORING