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ACDelco 14PB4048 - Power Brake Booster
Product Overview
The ACDelco 14PB4048 Power Brake Booster is designed to enhance your vehicle's braking performance by providing reliable hydraulic assistance. This essential component ensures that your brake pedal responds efficiently, promoting safety and control during driving. With OE-level quality and a perfect fit for a variety of Cadillac, Chevrolet, GMC, and Hummer models, you can trust ACDelco for its durability and performance. Choose ACDelco 14PB4048 for dependable performance and peace of mind every time you service your vehicle.
Cross Reference Numbers
This ACDelco 14PB4048 is equivalent to or replaces the following part numbers:
Vehicle Compatibility
- Cadillac 2002 Escalade 5.3 V8
- Cadillac 2002 Escalade 6.0 V8
- Cadillac 2002 Escalade EXT 6.0 V8
- Chevrolet 1999-2000 Silverado 2500 5.3 V8
- Chevrolet 1999-2002 Silverado 2500 6.0 V8
- Chevrolet 2000-2002 Silverado 1500 4.3 V6
- Chevrolet 2000-2002 Silverado 1500 4.8 V8
- Chevrolet 2000-2002 Silverado 1500 5.3 V8
- Chevrolet 2000-2002 Suburban 1500 5.3 V8
- Chevrolet 2000-2002 Tahoe 4.8 V8
This also fits other applications. Please use the vehicle selector tool to verify fitment.
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Frequently Asked Questions
What is the function of the ACDelco 14PB4048 Power Brake Booster?
The ACDelco 14PB4048 Power Brake Booster enhances braking efficiency by using hydraulic pressure to amplify the force applied to the brake pedal, ensuring optimal response and safety.
Will the ACDelco 14PB4048 fit my vehicle?
To determine fitment, please refer to the vehicle compatibility list or use the vehicle selector tool. The ACDelco 14PB4048 is designed to fit a range of Cadillac, Chevrolet, GMC, and Hummer models.
What happens if the Power Brake Booster fails?
If the ACDelco 14PB4048 Power Brake Booster fails, you may experience decreased braking performance, increased pedal effort, or a spongy brake pedal. It's important to replace it promptly to maintain vehicle safety.
Are there any common issues associated with the ACDelco 14PB4048?
Common issues may include air leaks, which can lead to hard brake pedal feel, or hydraulic fluid leaks. Regular inspections can help identify these problems early.
Where can I purchase the ACDelco 14PB4048?
You can order the ACDelco 14PB4048 directly from Newparts.com for a factory-correct replacement that restores safety and performance. Order ACDelco 14PB4048 today!
- BrandACDelco
- ManufacturerACDelco
- MPN14PB4048
- FeaturesBooster Type : Hydraulic
Brake Pedal Rod Extension Included : Yes
Brake Service Grade : Performance
Master Cylinder Included : No
Mounting Bracket Included : Yes
Mounting Hardware Included : No - Part TypePower Brake Booster
- Fitment
- Fitment TypeVehicle Specific
| Year | Make | Model | Submodel | Notes |
|---|---|---|---|---|
| 2002 | Cadillac | Escalade | Base (6.0 V8 GAS) | Notes: without Master Cylinder, , with Hydro-Boost, |
| 2002 | Cadillac | Escalade | Base (5.3 V8 GAS) | Notes: without Master Cylinder, , with Hydro-Boost, |
| 2002 | Chevrolet | Avalanche 1500 | Base (5.3 V8 GAS) | Notes: without Master Cylinder, , with Hydro-Boost, |
| 2002 | Chevrolet | Avalanche 1500 | North Face (5.3 V8 GAS) | Notes: without Master Cylinder, , with Hydro-Boost, |
| 2002 | Chevrolet | Avalanche 1500 | On Road Edition (5.3 V8 GAS) | Notes: without Master Cylinder, , with Hydro-Boost, |
| 2002 | Chevrolet | Avalanche 1500 | Z71 (5.3 V8 GAS) | Notes: without Master Cylinder, , with Hydro-Boost, |
| 2002 | Chevrolet | Silverado 3500 | Base (6.6 V8 DIESEL) | Notes: with Hydro-Boost, , without Master Cylinder, |
| 2002 | Chevrolet | Silverado 3500 | Base (6.0 V8 GAS) | Notes: with Hydro-Boost, , without Master Cylinder, |
| 2002 | Chevrolet | Silverado 3500 | Base (8.1 V8 GAS) | Notes: with Hydro-Boost, , without Master Cylinder, |
| 2002 | Chevrolet | Silverado 3500 | LS (6.0 V8 GAS) | Notes: with Hydro-Boost, , without Master Cylinder, |
| 2002 | Chevrolet | Silverado 3500 | LS (8.1 V8 GAS) | Notes: with Hydro-Boost, , without Master Cylinder, |
| 2002 | Chevrolet | Silverado 3500 | LS (6.6 V8 DIESEL) | Notes: with Hydro-Boost, , without Master Cylinder, |
| 2002 | Chevrolet | Silverado 3500 | LT (6.6 V8 DIESEL) | Notes: with Hydro-Boost, , without Master Cylinder, |
| 2002 | Chevrolet | Silverado 3500 | LT (6.0 V8 GAS) | Notes: with Hydro-Boost, , without Master Cylinder, |
| 2002 | Chevrolet | Silverado 3500 | LT (8.1 V8 GAS) | Notes: with Hydro-Boost, , without Master Cylinder, |
| 2002 | Chevrolet | Suburban 1500 | LS (5.3 V8 GAS) | Notes: without Master Cylinder, , with Hydro-Boost, |
| 2002 | Chevrolet | Suburban 1500 | LT (5.3 V8 GAS) | Notes: without Master Cylinder, , with Hydro-Boost, |
| 2002 | Chevrolet | Suburban 1500 | Z71 (5.3 V8 GAS) | Notes: without Master Cylinder, , with Hydro-Boost, |
| 2002 | Chevrolet | Suburban 2500 | LS (6.0 V8 GAS) | Notes: with Hydro-Boost, , without Master Cylinder, |
| 2002 | Chevrolet | Suburban 2500 | LS (8.1 V8 GAS) | Notes: with Hydro-Boost, , without Master Cylinder, |
| 2002 | Chevrolet | Suburban 2500 | LT (6.0 V8 GAS) | Notes: with Hydro-Boost, , without Master Cylinder, |
| 2002 | Chevrolet | Suburban 2500 | LT (8.1 V8 GAS) | Notes: with Hydro-Boost, , without Master Cylinder, |
| 2002 | Chevrolet | Tahoe | LS (5.3 V8 GAS) | Notes: without Master Cylinder, , with Hydro-Boost, |
| 2002 | Chevrolet | Tahoe | LS (4.8 V8 GAS) | Notes: without Master Cylinder, , with Hydro-Boost, |
| 2002 | Chevrolet | Tahoe | LT (5.3 V8 GAS) | Notes: without Master Cylinder, , with Hydro-Boost, |
| 2002 | Chevrolet | Tahoe | LT (4.8 V8 GAS) | Notes: without Master Cylinder, , with Hydro-Boost, |
| 2002 | Chevrolet | Tahoe | Z71 (5.3 V8 GAS) | Notes: without Master Cylinder, , with Hydro-Boost, |
| 2002 | GMC | Sierra 1500 | Base (5.3 V8 GAS) | Notes: without Master Cylinder, , with Hydro-Boost, |
| 2002 | GMC | Sierra 1500 | Base (4.8 V8 GAS) | Notes: without Master Cylinder, , with Hydro-Boost, |
| 2002 | GMC | Sierra 1500 | Base (4.3 V6 GAS) | Notes: without Master Cylinder, , with Hydro-Boost, |
| 2002 | GMC | Sierra 1500 | Denali (6.0 V8 GAS) | Notes: without Master Cylinder, , with Hydro-Boost, |
| 2002 | GMC | Sierra 1500 | HT (5.3 V8 GAS) | Notes: without Master Cylinder, , with Hydro-Boost, |
| 2002 | GMC | Sierra 1500 | HT (4.3 V6 GAS) | Notes: without Master Cylinder, , with Hydro-Boost, |
| 2002 | GMC | Sierra 1500 | HT (4.8 V8 GAS) | Notes: without Master Cylinder, , with Hydro-Boost, |
| 2002 | GMC | Sierra 1500 | SL (5.3 V8 GAS) | Notes: without Master Cylinder, , with Hydro-Boost, |
| 2002 | GMC | Sierra 1500 | SL (4.8 V8 GAS) | Notes: without Master Cylinder, , with Hydro-Boost, |
| 2002 | GMC | Sierra 1500 | SL (4.3 V6 GAS) | Notes: without Master Cylinder, , with Hydro-Boost, |
| 2002 | GMC | Sierra 1500 | SLE (5.3 V8 GAS) | Notes: without Master Cylinder, , with Hydro-Boost, |
| 2002 | GMC | Sierra 1500 | SLE (4.3 V6 GAS) | Notes: without Master Cylinder, , with Hydro-Boost, |
| 2002 | GMC | Sierra 1500 | SLE (4.8 V8 GAS) | Notes: without Master Cylinder, , with Hydro-Boost, |
| 2002 | GMC | Sierra 1500 | SLT (4.3 V6 GAS) | Notes: without Master Cylinder, , with Hydro-Boost, |
| 2002 | GMC | Sierra 1500 | SLT (5.3 V8 GAS) | Notes: without Master Cylinder, , with Hydro-Boost, |
| 2002 | GMC | Sierra 1500 | SLT (4.8 V8 GAS) | Notes: without Master Cylinder, , with Hydro-Boost, |
| 2002 | GMC | Sierra 1500 | WT (4.8 V8 GAS) | Notes: without Master Cylinder, , with Hydro-Boost, |
| 2002 | GMC | Sierra 1500 | WT (4.3 V6 GAS) | Notes: without Master Cylinder, , with Hydro-Boost, |
| 2002 | GMC | Sierra 1500 | WT (5.3 V8 GAS) | Notes: without Master Cylinder, , with Hydro-Boost, |
| 2002 | GMC | Sierra 1500 HD | SLE (6.0 V8 GAS) | Notes: without Master Cylinder, , with Hydro-Boost, |
| 2002 | GMC | Sierra 1500 HD | SLT (6.0 V8 GAS) | Notes: without Master Cylinder, , with Hydro-Boost, |
| 2002 | GMC | Sierra 2500 | Base (6.0 V8 CNG) | Notes: without Master Cylinder, , with Hydro-Boost, |
| 2002 | GMC | Sierra 2500 | Base (6.0 V8 GAS) | Notes: without Master Cylinder, , with Hydro-Boost, |
| 2002 | GMC | Sierra 2500 | Base (6.0 V8 BI-FUEL) | Notes: without Master Cylinder, , with Hydro-Boost, |
| 2002 | GMC | Sierra 2500 | SL (6.0 V8 CNG) | Notes: without Master Cylinder, , with Hydro-Boost, |
| 2002 | GMC | Sierra 2500 | SL (6.0 V8 GAS) | |
| 2000 | Chevrolet | Suburban 1500 | Base (5.3 V8 GAS) | Notes: without Master Cylinder, , with Hydro-Boost, |
| 2000 | Chevrolet | Suburban 1500 | LS (5.3 V8 GAS) | Notes: without Master Cylinder, , with Hydro-Boost, |
| 2000 | Chevrolet | Suburban 1500 | LT (5.3 V8 GAS) | Notes: without Master Cylinder, , with Hydro-Boost, |
| 2000 | Chevrolet | Suburban 2500 | Base (6.0 V8 GAS) | Notes: without Master Cylinder, , with Hydro-Boost, |
| 2000 | Chevrolet | Suburban 2500 | LS (6.0 V8 GAS) | Notes: without Master Cylinder, , with Hydro-Boost, |
| 2000 | Chevrolet | Suburban 2500 | LT (6.0 V8 GAS) | Notes: without Master Cylinder, , with Hydro-Boost, |
| 2000 | Chevrolet | Tahoe | LS (4.8 V8 GAS) | Notes: GM Brake Codes are on the "Service Parts Identification" sticker., , GM Brake Code JH6, , with Brake Code JH5, , without Master Cylinder, , with Hydro-Boost, |
| 2000 | Chevrolet | Tahoe | LS (5.3 V8 GAS) | Notes: GM Brake Codes are on the "Service Parts Identification" sticker., , GM Brake Code JH6, , with Brake Code JH5, , without Master Cylinder, , with Hydro-Boost, |
| 2000 | Chevrolet | Tahoe | Base (4.8 V8 GAS) | Notes: GM Brake Codes are on the "Service Parts Identification" sticker., , GM Brake Code JH6, , with Brake Code JH5, , without Master Cylinder, , with Hydro-Boost, |
| 2000 | Chevrolet | Tahoe | Base (5.3 V8 GAS) | Notes: GM Brake Codes are on the "Service Parts Identification" sticker., , GM Brake Code JH6, , with Brake Code JH5, , without Master Cylinder, , with Hydro-Boost, |
| 2000 | Chevrolet | Tahoe | LT (5.3 V8 GAS) | Notes: GM Brake Codes are on the "Service Parts Identification" sticker., , GM Brake Code JH6, , with Brake Code JH5, , without Master Cylinder, , with Hydro-Boost, |
| 2000 | Chevrolet | Tahoe | LT (4.8 V8 GAS) | Notes: GM Brake Codes are on the "Service Parts Identification" sticker., , GM Brake Code JH6, , with Brake Code JH5, , without Master Cylinder, , with Hydro-Boost, |
| 2000 | GMC | Sierra 1500 | SL (4.3 V6 GAS) | Notes: with Hydro-Boost, , without Master Cylinder, |
| 2000 | GMC | Sierra 1500 | SL (4.8 V8 GAS) | Notes: with Hydro-Boost, , without Master Cylinder, |
| 2000 | GMC | Sierra 1500 | SL (5.3 V8 GAS) | Notes: with Hydro-Boost, , without Master Cylinder, |
| 2000 | GMC | Sierra 1500 | SLE (4.3 V6 GAS) | Notes: with Hydro-Boost, , without Master Cylinder, |
| 2000 | GMC | Sierra 1500 | SLE (4.8 V8 GAS) | Notes: with Hydro-Boost, , without Master Cylinder, |
| 2000 | GMC | Sierra 1500 | SLE (5.3 V8 GAS) | Notes: with Hydro-Boost, , without Master Cylinder, |
| 2000 | GMC | Sierra 1500 | SLT (5.3 V8 GAS) | Notes: with Hydro-Boost, , without Master Cylinder, |
| 2000 | GMC | Sierra 1500 | SLT (4.8 V8 GAS) | Notes: with Hydro-Boost, , without Master Cylinder, |
| 2000 | GMC | Sierra 1500 | SLT (4.3 V6 GAS) | Notes: with Hydro-Boost, , without Master Cylinder, |
| 2001 | Chevrolet | Suburban 1500 | Base (5.3 V8 GAS) | Notes: without Master Cylinder, , with Hydro-Boost, |
| 2001 | Chevrolet | Suburban 1500 | LS (5.3 V8 GAS) | Notes: without Master Cylinder, , with Hydro-Boost, |
| 2001 | Chevrolet | Suburban 1500 | LT (5.3 V8 GAS) | Notes: without Master Cylinder, , with Hydro-Boost, |
| 2001 | Chevrolet | Suburban 2500 | Base (6.0 V8 GAS) | Notes: without Master Cylinder, , with Hydro-Boost, |
| 2001 | Chevrolet | Suburban 2500 | Base (8.1 V8 GAS) | Notes: without Master Cylinder, , with Hydro-Boost, |
| 2001 | Chevrolet | Suburban 2500 | LS (6.0 V8 GAS) | Notes: without Master Cylinder, , with Hydro-Boost, |
| 2001 | Chevrolet | Suburban 2500 | LS (8.1 V8 GAS) | Notes: without Master Cylinder, , with Hydro-Boost, |
| 2001 | Chevrolet | Suburban 2500 | LT (6.0 V8 GAS) | Notes: without Master Cylinder, , with Hydro-Boost, |
| 2001 | Chevrolet | Suburban 2500 | LT (8.1 V8 GAS) | Notes: without Master Cylinder, , with Hydro-Boost, |
| 2001 | Chevrolet | Tahoe | Base (4.8 V8 GAS) | Notes: with Hydro-Boost, , without Master Cylinder, |
| 2001 | Chevrolet | Tahoe | Base (5.3 V8 GAS) | Notes: with Hydro-Boost, , without Master Cylinder, |
| 2001 | Chevrolet | Tahoe | LS (4.8 V8 GAS) | Notes: with Hydro-Boost, , without Master Cylinder, |
| 2001 | Chevrolet | Tahoe | LS (5.3 V8 GAS) | Notes: with Hydro-Boost, , without Master Cylinder, |
| 2001 | Chevrolet | Tahoe | LT (4.8 V8 GAS) | Notes: with Hydro-Boost, , without Master Cylinder, |
| 2001 | Chevrolet | Tahoe | LT (5.3 V8 GAS) | Notes: with Hydro-Boost, , without Master Cylinder, |
| 2001 | GMC | Sierra 1500 | C3 (6.0 V8 GAS) | Notes: with Hydro-Boost, , without Master Cylinder, |
| 2001 | GMC | Sierra 1500 | SL (4.3 V6 GAS) | Notes: with Hydro-Boost, , without Master Cylinder, |
| 2001 | GMC | Sierra 1500 | SL (4.8 V8 GAS) | Notes: with Hydro-Boost, , without Master Cylinder, |
| 2001 | GMC | Sierra 1500 | SL (5.3 V8 GAS) | Notes: with Hydro-Boost, , without Master Cylinder, |
| 2001 | GMC | Sierra 1500 | SLE (4.8 V8 GAS) | Notes: with Hydro-Boost, , without Master Cylinder, |
| 2001 | GMC | Sierra 1500 | SLE (4.3 V6 GAS) | Notes: with Hydro-Boost, , without Master Cylinder, |
| 2001 | GMC | Sierra 1500 | SLE (5.3 V8 GAS) | Notes: with Hydro-Boost, , without Master Cylinder, |
| 2001 | GMC | Sierra 1500 | SLT (4.8 V8 GAS) | Notes: with Hydro-Boost, , without Master Cylinder, |
| 2001 | GMC | Sierra 1500 | SLT (4.3 V6 GAS) | Notes: with Hydro-Boost, , without Master Cylinder, |
| 2001 | GMC | Sierra 1500 | SLT (5.3 V8 GAS) | Notes: with Hydro-Boost, , without Master Cylinder, |
| 2001 | GMC | Sierra 1500 HD | SLE (6.0 V8 GAS) | Notes: without Master Cylinder, , with Hydro-Boost, |
Warranty Overview
At Newparts, we stand behind the quality of the products we sell. Every part we offer is backed by a warranty designed to give you peace of mind and protect your investment.
Standard Warranty – Most Parts
Coverage: 2 years or 24,000 miles (whichever comes first) from purchase date.
Protection: Defects in materials or workmanship under normal personal use.
Eligibility: Applies only to the original purchaser and the vehicle where the part was first installed.
Exclusions:
Wear-and-tear items (brake pads, filters, bulbs, wipers, etc.)
Commercial, fleet, rideshare, off-road, or racing use
Improper installation, misuse, accidents, or modifications
Not Covered: Labor, shipping, towing, or incidental costs.
Bison Performance Warranty – Our House Brand
Coverage: Limited Lifetime Warranty for as long as you own your vehicle.
Applies To: All products sold under the Bison Performance label.
Premium Protection: Goes beyond our standard warranty — if it’s a Bison product, the 2-year/24k mile limit is replaced with lifetime coverage.
Exclusions: Same as the standard warranty (normal wear, commercial use, improper installation, etc.).
What’s Included: Replacement of the defective product (labor and shipping excluded).
Warranty Claim Requirements
To keep claims fast and fair, we require:
Proof of purchase (invoice or order confirmation).
Photos or videos showing the defective part, order number, date, VIN, and odometer reading.
Diagnostic reports or part returns for non-visible issues may be requested.
Claims must be truthful, properly documented, and reflect normal consumer use.
Buy With Confidence: We back our products because we believe in their quality, with a transparent, customer-first warranty process you can trust. And with Bison Performance products, you’ll enjoy Limited Lifetime protection—an assurance few brands can match.
For full details and exclusions, please see our complete Warranty Terms & Conditions.
This summary is for convenience only. For full warranty coverage details, exclusions, and requirements, see our official Warranty Terms & Conditions. In case of conflict, the full policy governs.
Return Policy Overview
Most parts can be returned within 30 days of delivery if unused, uninstalled, and in original packaging.
To start a return, use our Return Portal or contact support.
Restocking fee: Up to 20% may apply for certain orders (buyer’s remorse, order errors, or special-order items)
Refunds: Issued to your original payment method within 3–5 business days after inspection
Exchanges: Not automatic — please return and reorder
Replacements: May be approved for incorrect or defective items reported within 7 days
Not returnable:
Used or installed parts
Electrical components
Opened filter kits, gaskets, or contaminated items
Final sale or custom orders
Important Notes:
Return shipping is your responsibility unless we made a verified error
Fitment is the customer’s responsibility (we can assist, but do not guarantee)
Country of origin may vary and is not grounds for return
For complete details, please see our full Return Policy.
This Returns summary is provided for convenience only. All returns, refunds, and exchanges are subject to the complete Returns Policy. In the event of any conflict, the full policy governs.
Fast, Reliable Shipping — Straight to Your Door
We ship most orders the same day when placed before 2 PM CST (Monday–Friday). Our main warehouse is just east of Nashville, TN, and we also ship from multiple locations nationwide to get your order to you as quickly as possible.
We use trusted carriers like UPS, FedEx, and USPS.
Tracking info is emailed to you as soon as your order ships.
Delivery estimates at checkout are based on carrier data, but not guaranteed.
Need help with a shipment?
If your order is missing, damaged, or incorrect, just let us know within 5 days of delivery. We’ll walk you through the quick claim process — including a few photos to help us make things right.
For full details, please see our complete Shipping Policy.
This Shipping summary is provided for convenience only. Delivery times, carrier terms, fees, restrictions, risk of loss, and other details are governed by our complete Shipping Policy. In the event of any conflict, the full policy governs.












