Aftermarket replacement part
Dual-Diaphragm Vacuum Brake Booster for Chevrolet and GMC C2500, K2500 1997-2000, Brake Code JB6/JB7
Free shipping within the US. Orders ship within 1 business day and arrive in 1 to 3 business days.
- Part type
- Brakes
Product overview
A dual-diaphragm vacuum brake booster without a master cylinder for the Cadillac, Chevrolet and GMC trucks and SUVs listed below. It uses engine vacuum to reduce the pedal effort needed for braking. A hard brake pedal or reduced braking assist can indicate a failing booster.
Vehicle Fitment
- Cadillac Escalade 1999-2000
- Chevrolet C1500 1997-1999, brake code JB5/JB6
- Chevrolet C1500 Suburban 1997-1999, brake code JB5/JB6/JB7
- Chevrolet C2500 1997-2000, brake code JB6/JB7
- Chevrolet C2500 Suburban 1997-1999, brake code JB5/JB6/JB7
- Chevrolet K1500 1997-1999, brake code JB5/JB6
- Chevrolet K1500 Suburban 1997-1999, brake code JB5/JB6/JB7
- Chevrolet K2500 1997-2000, brake code JB6/JB7
- Chevrolet K2500 Suburban 1997-1999, brake code JB5/JB6/JB7
- Chevrolet Sonora 2000-2001, with vacuum booster
- Chevrolet Tahoe 1997-1999, with vacuum booster; 2000, with vacuum booster and brake code JB5/JB6
- GMC C1500 1997-1999, brake code JB5/JB6
- GMC C1500 Suburban 1997-1999, brake code JB5/JB6/JB7
- GMC C2500 1997-2000, brake code JB6/JB7
- GMC C2500 Suburban 1997-1999, brake code JB5/JB6/JB7
- GMC K1500 1997-1999, brake code JB5/JB6
- GMC K1500 Suburban 1997-1999, brake code JB5/JB6/JB7
- GMC K2500 1997-2000, brake code JB6/JB7
- GMC K2500 Suburban 1997-1999, brake code JB5/JB6/JB7
- GMC Yukon 1997-1999, with vacuum booster; 2000, with vacuum booster and brake code JB5/JB6
Replaces Part Numbers
54-71085, 5471085, 18029873, 18029874, 18047682
Specifications
- Diaphragm style: dual
- Diaphragm diameter: 10.40 in / 264.16 mm
- Master cylinder: not included
- Master cylinder stud thread: M10x1.5
- Material: steel
What's Included
- 1 x vacuum brake booster
Before You Order
Match the part number above with the one on your old brake booster, or send us your VIN and we will confirm fitment for you. Verify the exact brake code before ordering; the master cylinder is not included.
Shipping & Returns
Ships within the United States. Orders are processed within 1 business day. 30-day returns with free return shipping and no restocking fee. Questions? Email info@getorvexa.com or text +1 (252) 705-1212.
Vehicle applications
Listed applicationsVehicles this part is listed for. Match your engine and original part number, or send us your VIN and we will confirm fitment for you.
| Make | Model | Years | Engine / notes |
|---|---|---|---|
| Cadillac | Escalade | 1999–2000 | - |
| Chevrolet | C1500 | 1997–1999 | brake code JB5/JB6 |
| Chevrolet | C1500 Suburban | 1997–1999 | brake code JB5/JB6/JB7 |
| Chevrolet | C2500 | 1997–2000 | brake code JB6/JB7 |
| Chevrolet | C2500 Suburban | 1997–1999 | brake code JB5/JB6/JB7 |
| Chevrolet | K1500 | 1997–1999 | brake code JB5/JB6 |
| Chevrolet | K1500 Suburban | 1997–1999 | brake code JB5/JB6/JB7 |
| Chevrolet | K2500 | 1997–2000 | brake code JB6/JB7 |
| Chevrolet | K2500 Suburban | 1997–1999 | brake code JB5/JB6/JB7 |
| Chevrolet | Sonora | 2000–2001 | with vacuum booster |
| Chevrolet | Tahoe | 1997–1999 | with vacuum booster |
| Chevrolet | Tahoe | 2000 | with vacuum booster and brake code JB5/JB6 |
| GMC | C1500 | 1997–1999 | brake code JB5/JB6 |
| GMC | C1500 Suburban | 1997–1999 | brake code JB5/JB6/JB7 |
| GMC | C2500 | 1997–2000 | brake code JB6/JB7 |
| GMC | C2500 Suburban | 1997–1999 | brake code JB5/JB6/JB7 |
| GMC | K1500 | 1997–1999 | brake code JB5/JB6 |
| GMC | K1500 Suburban | 1997–1999 | brake code JB5/JB6/JB7 |
| GMC | K2500 | 1997–2000 | brake code JB6/JB7 |
| GMC | K2500 Suburban | 1997–1999 | brake code JB5/JB6/JB7 |
| GMC | Yukon | 1997–1999 | with vacuum booster |
| GMC | Yukon | 2000 | with vacuum booster and brake code JB5/JB6 |
Scroll to see all application details
Fitment verification is the buyer's responsibility. A matching year and model alone does not confirm compatibility.
Before installation
Before installation
Professional installation is recommended. Confirm the part, engine code and installation requirements before work begins.
Parts-only liability
Liability is limited to the price paid for the part. Labor, towing, rental vehicles and engine damage are excluded.
Free US shipping
Free shipping within the US. Orders ship within 1 business day and arrive in 1 to 3 business days.