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          Bosch 0204777573 - Power Brake Booster

          MPN: 0204777573
          0.0
          Vehicle Specific
          Check if this part fits your vehicle.
          • $207.95
          In stock

          Product Overview

          The Bosch 0204777573 Power Brake Booster ensures optimal braking performance by enhancing the force applied to the brake pedal. Designed with OE-level quality and reliability, this power brake booster guarantees a perfect fit for a range of Chevrolet and GMC vehicles. Trust in Bosch’s reputation for excellence and choose this component to maintain your vehicle's braking efficiency. Choose Bosch 0204777573 for dependable performance and peace of mind every time you service your vehicle.

          Cross Reference Numbers

          This Bosch 0204777573 is equivalent to or replaces the following part numbers: 15854059.

          Vehicle Compatibility

          • Chevrolet Silverado 2500 (2003-2004) 6.0 V8
          • Chevrolet Silverado 2500 HD (2003-2005) 6.0 V8
          • Chevrolet Avalanche 2500 (2003-2006) 8.1 V8
          • Chevrolet Silverado 1500 HD (2003-2006) 6.0 V8
          • Chevrolet Silverado 2500 HD (2003-2006) 6.6 V8
          • Chevrolet Silverado 2500 HD (2003-2006) 8.1 V8
          • Chevrolet Silverado 3500 (2003-2006) 6.0 V8
          • Chevrolet Silverado 3500 (2003-2006) 6.6 V8
          • Chevrolet Silverado 3500 (2003-2006) 8.1 V8
          • Chevrolet Suburban 2500 (2003-2006) 6.0 V8

          This also fits other applications. Please use the vehicle selector tool to verify fitment.

          Why Choose Newparts.com?

          • Trusted by DIYers and pros for over 15 years
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          Frequently Asked Questions

          What is a power brake booster and how does it work?

          A power brake booster enhances the braking power of your vehicle by using vacuum pressure to multiply the force applied to the brake pedal, making it easier to stop your vehicle.

          What symptoms indicate a failing power brake booster?

          Common symptoms include a hard brake pedal, longer stopping distances, and hissing noises when the brake pedal is pressed. If you suspect issues with your braking system, consider replacing it with Bosch 0204777573.

          What vehicles is the Bosch 0204777573 compatible with?

          This part is compatible with various Chevrolet and GMC models from 2003 to 2007, including Silverado and Sierra models with V8 engines.

          What should I do if my brake warning light is on?

          If your brake warning light is illuminated, it may indicate a problem with your braking system, such as a failing brake booster. Inspect the system and consider ordering Bosch 0204777573 for a factory-correct replacement.

          Where can I find more parts for my vehicle?

          To find additional parts for your vehicle, visit our website and use the vehicle selector tool for accurate fitment.

          Order Bosch 0204777573 today for a factory-correct replacement that restores safety and performance.

            • Newparts SKU
              5115338
            • Weight
              15.763 lbs
            • Dimensions (L x W x H)
              17.0079 x 8.5039 x 7.9134 in
            • Barcode
              77212245390
            • Manufacturer Part #
              0204777573
          • Brand
            Bosch
          • Manufacturer
            Bosch
          • MPN
            0204777573
          • Features
            Booster Type : Hydraulic
            Gasket Or Seal Included : No
            Master Cylinder Included : No
            Mounting Bracket Included : Yes
            Mounting Hardware Included : No
            Prop 65 Warning Label Required? : No
          • OE Part Numbers
            15854059
          • Part Type
            Power Brake Booster
          • Fitment
            • Fitment Type
              Vehicle Specific
          YearMakeModelSubmodelNotes
          2007GMCSierra 3500 ClassicSL (6.0 V8 GAS)
          2007GMCSierra 3500 ClassicSLE (6.0 V8 GAS)
          2007GMCSierra 3500 ClassicSLT (6.0 V8 GAS)
          2007GMCSierra 3500 ClassicWT (6.0 V8 GAS)
          2007GMCSierra 2500 HD ClassicSL (6.0 V8 GAS)
          2007GMCSierra 2500 HD ClassicSLE (6.0 V8 GAS)
          2007GMCSierra 2500 HD ClassicSLT (6.0 V8 GAS)
          2007GMCSierra 2500 HD ClassicWT (6.0 V8 GAS)
          2007ChevroletSilverado 1500 HD ClassicLT (6.0 V8 GAS)
          2007ChevroletSilverado 3500 ClassicLS (6.0 V8 GAS)
          2007ChevroletSilverado 3500 ClassicLT (6.0 V8 GAS)
          2007ChevroletSilverado 3500 ClassicWT (6.0 V8 GAS)
          2007ChevroletSilverado 3500 ClassicLS (8.1 V8 GAS)
          2007ChevroletSilverado 3500 ClassicLT (8.1 V8 GAS)
          2007ChevroletSilverado 3500 ClassicWT (8.1 V8 GAS)
          2007ChevroletSilverado 2500 HD ClassicLS (8.1 V8 GAS)
          2007ChevroletSilverado 2500 HD ClassicLT (8.1 V8 GAS)
          2007ChevroletSilverado 2500 HD ClassicWT (8.1 V8 GAS)
          2006GMCSierra 3500SL (6.0 V8 GAS)
          2006GMCSierra 3500SLE (6.0 V8 GAS)
          2006GMCSierra 3500SLT (6.0 V8 GAS)
          2006GMCSierra 3500WT (6.0 V8 GAS)
          2006GMCSierra 2500 HDSL (6.0 V8 GAS)
          2006GMCSierra 2500 HDSLE (6.0 V8 GAS)
          2006GMCSierra 2500 HDSLT (6.0 V8 GAS)
          2006GMCSierra 2500 HDWT (6.0 V8 GAS)
          2006ChevroletSuburban 2500LS (8.1 V8 GAS)
          2006ChevroletSuburban 2500LT (8.1 V8 GAS)
          2006ChevroletSuburban 2500LS (6.0 V8 GAS)
          2006ChevroletSuburban 2500LT (6.0 V8 GAS)
          2006ChevroletSilverado 3500LS (6.0 V8 GAS)
          2006ChevroletSilverado 3500LT (6.0 V8 GAS)
          2006ChevroletSilverado 3500WT (6.0 V8 GAS)
          2006ChevroletSilverado 3500LS (8.1 V8 GAS)
          2006ChevroletSilverado 3500LT (8.1 V8 GAS)
          2006ChevroletSilverado 3500WT (8.1 V8 GAS)
          2006ChevroletSilverado 1500 HDLT (6.0 V8 GAS)
          2006ChevroletAvalanche 2500LS (8.1 V8 GAS)
          2006ChevroletAvalanche 2500LT (8.1 V8 GAS)
          2006ChevroletSilverado 2500 HDLS (8.1 V8 GAS)
          2006ChevroletSilverado 2500 HDLT (8.1 V8 GAS)
          2006ChevroletSilverado 2500 HDWT (8.1 V8 GAS)
          2003ChevroletSuburban 2500LS (8.1 V8 GAS)
          2003ChevroletSuburban 2500LT (8.1 V8 GAS)
          2003ChevroletSilverado 2500 HDBase (6.0 V8 GAS)
          2003ChevroletSilverado 2500 HDBase (6.0 V8 CNG)
          2003ChevroletSilverado 2500 HDLS (6.0 V8 CNG)
          2003ChevroletSilverado 2500 HDLS (6.0 V8 GAS)
          2003ChevroletSilverado 2500 HDLT (6.0 V8 GAS)
          2003ChevroletSilverado 2500 HDWT (6.0 V8 GAS)
          2003ChevroletSilverado 2500 HDWT (6.0 V8 CNG)
          2003ChevroletSilverado 1500 HDLS (6.0 V8 GAS)
          2003ChevroletSilverado 1500 HDLT (6.0 V8 GAS)
          2003ChevroletAvalanche 2500Base (8.1 V8 GAS)
          2004ChevroletSuburban 2500LS (8.1 V8 GAS)
          2004ChevroletSuburban 2500LT (8.1 V8 GAS)
          2004ChevroletSilverado 3500Base (6.0 V8 CNG)
          2004ChevroletSilverado 3500Base (6.0 V8 GAS)
          2004ChevroletSilverado 3500LS (6.0 V8 CNG)
          2004ChevroletSilverado 3500LS (6.0 V8 GAS)
          2004ChevroletSilverado 3500LT (6.0 V8 CNG)
          2004ChevroletSilverado 3500LT (6.0 V8 GAS)
          2004ChevroletSilverado 3500WT (6.0 V8 GAS)
          2004ChevroletSilverado 3500WT (6.0 V8 CNG)
          2004ChevroletSilverado 2500 HDBase (6.0 V8 CNG)
          2004ChevroletSilverado 2500 HDBase (6.0 V8 GAS)
          2004ChevroletSilverado 2500 HDLS (6.0 V8 GAS)
          2004ChevroletSilverado 2500 HDLS (6.0 V8 CNG)
          2004ChevroletSilverado 2500 HDLT (6.0 V8 GAS)
          2004ChevroletSilverado 2500 HDWT (6.0 V8 GAS)
          2004ChevroletSilverado 2500 HDWT (6.0 V8 CNG)
          2004ChevroletSilverado 2500Base (6.0 V8 GAS)
          2004ChevroletSilverado 2500LS (6.0 V8 GAS)
          2004ChevroletSilverado 2500LT (6.0 V8 GAS)
          2004ChevroletSilverado 2500WT (6.0 V8 GAS)
          2004ChevroletAvalanche 2500Base (8.1 V8 GAS)
          2005ChevroletSuburban 2500LS (8.1 V8 GAS)
          2005ChevroletSuburban 2500LT (8.1 V8 GAS)
          2005ChevroletSilverado 1500 HDBase (6.0 V8 GAS)
          2005ChevroletSilverado 1500 HDLS (6.0 V8 GAS)
          2005ChevroletSilverado 1500 HDLT (6.0 V8 GAS)
          2005ChevroletSilverado 2500 HDBase (6.0 V8 GAS)
          2005ChevroletSilverado 2500 HDBase (6.0 V8 CNG)
          2005ChevroletSilverado 2500 HDLS (6.0 V8 GAS)
          2005ChevroletSilverado 2500 HDLS (6.0 V8 CNG)
          2005ChevroletSilverado 2500 HDLT (6.0 V8 GAS)
          2005ChevroletSilverado 2500 HDWT (6.0 V8 GAS)
          2005ChevroletSilverado 2500 HDWT (6.0 V8 CNG)
          2005ChevroletSilverado 2500 HDBase (8.1 V8 GAS)
          2005ChevroletSilverado 2500 HDLS (8.1 V8 GAS)
          2005ChevroletSilverado 3500Base (6.0 V8 GAS)
          2005ChevroletSilverado 3500Base (6.0 V8 CNG)
          2005ChevroletSilverado 3500LS (6.0 V8 GAS)
          2005ChevroletSilverado 3500LS (6.0 V8 CNG)
          2005ChevroletSilverado 3500LT (6.0 V8 GAS)
          2005ChevroletSilverado 3500LT (6.0 V8 CNG)
          2005ChevroletSilverado 3500Base (8.1 V8 GAS)
          2005ChevroletSilverado 3500LS (8.1 V8 GAS)
          2005ChevroletSilverado 3500LT (8.1 V8 GAS)
          2005ChevroletAvalanche 2500LS (8.1 V8 GAS)
          There are more vehicles this part is compatible with. Check if it fits your vehicle.
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          We accept the following payment methods:

          Accepted payment methods

          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.

          Product questions

          No questions yet. Be the first to ask the question!