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Cardone 54-71090 Power Brake Booster
| Brand | Cardone 54-71090 |
|---|---|
| Brake Booster Diaphragm Style | Dual |
| Color | Gray |
| Diaphragm Diameter (in) | 10.4 |
| Diaphragm Diameter (mm) | 264.16 |
| E-Waste | No |
| Master Cylinder Included | No |
| Master Cylinder Stud Thread Size | M10x1.5 |
| Material | Steel |
| Package Contents | Booster; Instruction Manual |
| Product Condition | Remanufactured |
| Product line | Vacuum Power Brake Booster |
| Fits | Cadillac · 2 vehicles |
Remanufactured to match O.E. performance. Built and tested for reliable, like-new operation.
Dual-diaphragm design. Delivers strong assist in a compact brake booster.
Rust-prohibitive finish. Helps extend the life of the steel housing.
Cross-references Cadillac 18020166 and Chevrolet 18020521 for the same application. See all 2.
Vacuum Power Brake Booster for Cadillac J55 Applications
Restore brake assist with this remanufactured Cardone Vacuum Power Brake Booster, part number 54-71090. It is built and tested to match original equipment performance for 1993 Cadillac Commercial Chassis and 1993 Cadillac Fleetwood models with GM brake code J55 and without a master cylinder.
Cardone’s Vacuum Power Brake Booster line focuses on remanufactured OE-style replacement parts that are re-engineered for fit, function, and durability. This unit uses a dual diaphragm design and a steel housing with a gray finish for a direct replacement approach on the listed Cadillac applications.
Key Features
- Remanufactured to match OE performance
- Dual diaphragm design for vacuum-assisted braking
- Steel construction with gray finish
- 100% tested for fit and function
- 100% OE-quality seals and check valves installed
- Rust-prohibitive finishing process helps extend service life
- Master cylinder output rods are pre-adjusted when included
- Guaranteed fit and function
Detailed Product Overview
The Cardone 54-71090 vacuum power brake booster is engineered for 1993 Cadillac Commercial Chassis and 1993 Cadillac Fleetwood vehicles equipped with GM brake code J55. It features a 10.4-inch diaphragm diameter, M10x1.5 master cylinder stud thread size, and a remanufactured steel body built to restore consistent brake pedal assist. This part cross-references Cadillac 18020166 and Chevrolet 18020521 for the same application.
Common Brake Assist Issues It Can Address
- Hard brake pedal feel from a weak or leaking booster
- Reduced vacuum assist during braking
- Inconsistent pedal response under normal driving conditions
- Brake system performance loss related to booster wear
- Fitment problems when replacing an original J55 booster
Installation Notes and Tips
Verify the vehicle’s Service Parts Identification sticker for GM brake code J55 before ordering. This booster is listed for use without a master cylinder, so confirm your brake system configuration before installation. Inspect vacuum hoses, check valves, and mounting surfaces during replacement to help ensure proper operation on 1993 Cadillac Fleetwood and 1993 Cadillac Commercial Chassis applications.
Quality Assurance
Each unit is 100% tested to confirm reliable performance and proper fit. Cardone remanufactures this Vacuum Power Brake Booster to OE-level standards, with upgraded finishing and new seals and check valves installed to support dependable service on the listed Cadillac applications.
| Year | Make | Model | Drive Type | Position | Notes |
|---|---|---|---|---|---|
| 1993 | Cadillac | Commercial Chassis | RWD | N/A | GM Brake Code J55; GM Brake Codes are on the "Service Parts Identification" Sticker; without Master Cylinder; Vacuum Power Brake Booster |
| 1993 | Cadillac | Fleetwood | RWD | N/A | GM Brake Code J55; GM Brake Codes are on the "Service Parts Identification" Sticker; without Master Cylinder; Vacuum Power Brake Booster |
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