Cardone
Unloaded Caliper w/Bracket

Cardone 18-B4393A Disc Brake Caliper - Rear Right

Brand Cardone 18-B4393A
Position Rear Right
Bleeder Port Size M10x1.5
Brake Caliper Finish Oil emulsion
Caliper Color Gray
E-Waste No
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
Product line Unloaded Caliper w/Bracket
Fits Buick and Oldsmobile · 10 vehicles

Remanufactured OE part. Delivers a precise fit with original-equipment form and function.

Pressure-tested performance. Built for consistent braking and dependable sealing.

Complete installation kit. Includes new hardware and bracket where applicable.

Cross-references Buick 18019527, Buick 18029821 and Oldsmobile 18019527 for the same application. See all 4.

$72.28Free shipping
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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.

This part fits 10 vehicles
Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.
YearMakeModelPositionNotes
1998BuickPark AvenueRear RightMetal piston, mounting bracket, and installation hardware included for easy assembly.; Unloaded Caliper w/Bracket
1998BuickRivieraRear RightMetal piston, mounting bracket, and installation hardware included for easy assembly.; Unloaded Caliper w/Bracket
1998OldsmobileAuroraRear RightMetal piston, mounting bracket, and installation hardware included for easy assembly.; Unloaded Caliper w/Bracket
1997BuickPark AvenueRear RightMetal piston, mounting bracket, and installation hardware included for easy assembly.; Unloaded Caliper w/Bracket
1997BuickRivieraRear RightMetal piston, mounting bracket, and installation hardware included for easy assembly.; Unloaded Caliper w/Bracket
1997OldsmobileAuroraRear RightMetal piston, mounting bracket, and installation hardware included for easy assembly.; Unloaded Caliper w/Bracket
1996BuickRivieraRear RightMetal piston, mounting bracket, and installation hardware included for easy assembly.; Unloaded Caliper w/Bracket
1996OldsmobileAuroraRear RightMetal piston, mounting bracket, and installation hardware included for easy assembly.; Unloaded Caliper w/Bracket
1995BuickRivieraRear RightMetal piston, mounting bracket, and installation hardware included for easy assembly.; Unloaded Caliper w/Bracket
1995OldsmobileAuroraRear RightMetal piston, mounting bracket, and installation hardware included for easy assembly.; Unloaded Caliper w/Bracket
Directly replaces or cross-references 4 part numbers
Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.
Buick — 18019527Buick — 18029821Oldsmobile — 18019527Oldsmobile — 18029821