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Cardone 18-B4393A Disc Brake Caliper - Rear Right
Rear Right Brake Caliper for Buick and Oldsmobile
Cardone 18-B4393A is a remanufactured unloaded disc brake caliper with bracket for rear right applications on select Buick and Oldsmobile vehicles. It is built with a steel piston, gray oil-emulsion finish, and new premium components for a direct-fit brake repair.
Key Features
- Remanufactured Original Equipment-style caliper for accurate fitment
- Includes bracket where applicable for the listed applications
- Steel piston with 1.496 in. (37.9984 mm) piston diameter
- New bleeder screw, seals, and hardware kit included
- Plastic cap plug protects brake port threads during installation
- Pressure-tested for consistent brake performance
- Rust-inhibiting finish helps preserve the original equipment appearance
- Inlet and bleeder port size: M10x1.5
Product Details
This Cardone unloaded caliper w/bracket is engineered for rear right brake service on 1995-1998 Buick Riviera, 1997-1998 Buick Park Avenue, and 1995-1998 Oldsmobile Aurora. The remanufacturing process replaces wear items with new high-temperature EPDM rubber seals and other premium components, while the steel piston is selected for durability under load. Cardone 18-B4393A is supplied as a caliper, bracket, and hardware kit, making it a practical replacement for restoring braking function on these applications. This part cross-references Buick and Oldsmobile OE numbers 18019527 and 18029821 for the same application.
What This Caliper Helps Address
- Rear brake drag or uneven braking at the right rear wheel
- Leaking caliper seals or damaged bleeder threads
- Corrosion on the caliper body or piston area
- Brake pedal issues caused by caliper wear or internal leakage
- Poor brake response from a sticking or seized caliper assembly
Installation Notes
Compatible With 1997-1998 Buick Park Avenue, rear right; 1995-1998 Buick Riviera, rear right; and 1995-1998 Oldsmobile Aurora, rear right. Verify the M10x1.5 inlet and bleeder port size before installation. Use the brake fluid specified by the vehicle manufacturer, and follow OE service procedures when bleeding the system. Silicone grease is used on floating caliper mounting pins. Pads are not included.
Quality Assurance
Cardone remanufactures this caliper to rigorous quality and performance standards, then pressure-tests each unit before release. The process uses new components where needed and reduces energy and raw material use versus producing a new part.
| Brand | Cardone |
| Part Number | 18-B4393A |
| Position | Unloaded Caliper w/Bracket, Rear Right |
| Bleeder Port Size | M10x1.5 |
| Brake Caliper Finish | Oil emulsion |
| Caliper Color | Gray |
| E-Waste | No |
| FAQs | A silicone grease is used on floating caliper mounting pins. |
| FAQs | A symptom of a low brake pedal is usually caused by air in the sy |
| FAQs | As a rule, always use brake fluid recommended by o.e. the fluid t |
| FAQs | Brakes squeal all of the time. what's causing the squeal? |
| FAQs | Can i switch out a phenolic piston caliper for a steel piston cal |
| FAQs | Car pulls to one side during braking. why? |
| FAQs | Could calipers be the cause of a low brake pedal? |
| FAQs | Do all of your calipers come with the new hardware and a mounting |
| FAQs | New hardware is included with all of our calipers however the mou |
| FAQs | Not recommended. the o.e. manufacturers specified steel or phenol |
| FAQs | What type of fluid should i use: dot 3, dot 4, or dot 5? |
| FAQs | What type of grease is used on floating caliper mounting pins? |
| Inlet Port Size | M10x1.5 |
| Installation Hardware Included | Yes |
| Mounting Bolts Included | No |
| Package Contents | Caliper; bracket; hardware kit |
| Pads Included | No |
| Piston Material | Steel |
| Piston Quantity | 1 |
| Piston Size (OD) (in) | 1.496 |
| Piston Size (OD) (mm) | 37.9984 |
| Product Condition | Remanufactured |
This part fits 10 vehicles. Search below:
| Year | Make | Model | Position | Notes |
|---|---|---|---|---|
| 1998 | Buick | Park Avenue | Rear Right | Metal piston, mounting bracket, and installation hardware included for easy assembly.; Unloaded Caliper w/Bracket |
| 1998 | Buick | Riviera | Rear Right | Metal piston, mounting bracket, and installation hardware included for easy assembly.; Unloaded Caliper w/Bracket |
| 1998 | Oldsmobile | Aurora | Rear Right | Metal piston, mounting bracket, and installation hardware included for easy assembly.; Unloaded Caliper w/Bracket |
| 1997 | Buick | Park Avenue | Rear Right | Metal piston, mounting bracket, and installation hardware included for easy assembly.; Unloaded Caliper w/Bracket |
| 1997 | Buick | Riviera | Rear Right | Metal piston, mounting bracket, and installation hardware included for easy assembly.; Unloaded Caliper w/Bracket |
| 1997 | Oldsmobile | Aurora | Rear Right | Metal piston, mounting bracket, and installation hardware included for easy assembly.; Unloaded Caliper w/Bracket |
| 1996 | Buick | Riviera | Rear Right | Metal piston, mounting bracket, and installation hardware included for easy assembly.; Unloaded Caliper w/Bracket |
| 1996 | Oldsmobile | Aurora | Rear Right | Metal piston, mounting bracket, and installation hardware included for easy assembly.; Unloaded Caliper w/Bracket |
| 1995 | Buick | Riviera | Rear Right | Metal piston, mounting bracket, and installation hardware included for easy assembly.; Unloaded Caliper w/Bracket |
| 1995 | Oldsmobile | Aurora | Rear Right | Metal piston, mounting bracket, and installation hardware included for easy assembly.; Unloaded Caliper w/Bracket |
* Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.
This part directly replaces or is cross-referenced with the following part numbers:
Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.