GM full-size brake booster and master cylinder combo by SSBC-USA, 9-inch booster with 1-inch bore for full-size GM trucks

GM Full-Size brake conversion Booster/Master Brake Cylinder Combo, 9", 1" Bore, GM Full Size – A28138-1

SKU- A28138-1

$309.00
/
Shipping calculated at checkout.

SSBC-USA A28138-1 9-inch booster/master cylinder combo for compatible GM full-size brake conversion applications.

  • SKU: A28138-1
  • 9-inch brake booster and master cylinder
  • 1-inch bore master cylinder
  • Replacement assembly for compatible SSBC-USA brake systems

Verify pedal, firewall, pushrod, clearance, and brake-system compatibility before ordering.

Manufacturing Information

The brake booster and master-cylinder components in this assembly are sourced by SSBC-USA and are not manufactured in-house at our Elma, New York facility. Contact Customer Service for confirmed country-of-origin information.

✔ Fitment Confidence: Call (716) 775-6700 before ordering if any application detail is uncertain.

🚚 Shipping: This item ships from our Elma, NY facility. Typical processing time is 5–10 business days, subject to product availability and supplier delays.

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Frequently Asked Questions

How do I confirm this product fits my vehicle or brake system?

Review the fitment information on this page and confirm your year, make, model, drivetrain, wheel clearance, and current brake configuration where applicable. If you are unsure, call SSBC-USA technical support at (716) 775-6700 before ordering.

What is included with this product?

The included components are listed in the product description above. If a component is not specifically listed or you need help identifying what is required for your application, call SSBC-USA at (716) 775-6700.

How long will this product take to ship?

This item is configured to order at our Elma, New York facility. Production and configuration typically take 5–10 business days, although supply constraints can occasionally cause additional delays. Exact shipping cost is calculated at checkout.

Where can I get technical or order support?

Call SSBC-USA at (716) 775-6700 or email orders@ssbc-usa.com. Please include your product or order number when available.