Cardone
Unloaded Caliper

Cardone 2C-4639B Disc Brake Caliper - Front Right

Brand Cardone 2C-4639B
Position Front Right
Bleeder Port Size M10x1.5
Brake Caliper Finish Zinc plating
Caliper Color Silver
E-Waste No
Inlet Port Size M10x1.5
Installation Hardware Included Yes
Mounting Bolts Included No
Package Contents Caliper;Instruction Sheet; Bracket; Hardware Kit
Pads Included No
Piston Material Steel
Piston Size (OD) (in) 2.497
Piston Size (OD) (mm) 63.42
Product Condition New
Product line Unloaded Caliper
Fits Buick, Chevrolet, and Pontiac · 6 vehicles

Direct-fit component. Hassle-free installation with no modifications needed.

Zinc-plated finish. Provides a silver OE-like appearance and added reliability.

100% tested. Built for smooth, consistent performance in any driving condition.

Cross-references Buick 18046197, Chevrolet 18046197 and Pontiac 18046197 for the same application. See all 3.

$114.92Free shipping
In stock · usually ships same day before 1pm CST
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Step 2 — Quantity
Order total $114.92
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Free returns within 60 days if it doesn't fit when fitment is verified.

Front Right Disc Brake Caliper for GM Applications

Cardone 2C-4639B is a new unloaded disc brake caliper built for front right applications on select Buick, Chevrolet, and Pontiac vehicles. It is manufactured with zinc plating for a silver OE-like finish and is engineered for smooth, consistent braking performance in everyday driving and demanding service.

Key Features

  • Direct-fit unloaded caliper for front right brake service
  • Zinc-plated finish with a silver OE-style appearance
  • Steel piston construction with a 63.42 mm piston diameter
  • 100% tested for reliable operation before release
  • Meets or exceeds OE performance targets
  • No core return required
  • Includes caliper, bracket, instruction sheet, and hardware kit
  • Bleeder port size: M10x1.5; inlet port size: M10x1.5

Product Details

The Cardone Unloaded Caliper line focuses on direct replacement brake hydraulics with consistent fit and finish. This 2C-4639B caliper is designed as a replacement for GM front right brake applications and is supplied without pads, making it a practical choice when servicing the caliper assembly while reusing or separately replacing friction components. This part cross-references GM OE number 18046197 for the same application.

Vehicle-specific fitment includes 2005 Buick LeSabre front right, 2005 Buick Park Avenue front right, 2005 Chevrolet Impala front right, 2005 Chevrolet Monte Carlo front right, and 2004-2005 Pontiac Bonneville front right. Search terms such as front right brake caliper for 2005 Chevrolet Impala, 2005 Buick LeSabre disc brake caliper, and 2004-2005 Pontiac Bonneville front right caliper all point to this application.

What This Caliper Helps Address

  • Sticking or seized front right caliper operation
  • Uneven braking caused by worn hydraulic components
  • Brake fluid leakage at the caliper assembly
  • Corrosion on the caliper body or piston area
  • Brake pull or inconsistent pedal response from a failing caliper

Installation Notes

Confirm front right fitment by matching the vehicle year, make, model, wheel/brake configuration, and OE reference before installation. This caliper is unloaded, so pad condition should be inspected during service and replaced if needed. Bleeder and inlet port sizes are both M10x1.5, and the included bracket and hardware kit support a direct-fit installation on the listed applications.

Quality Assurance

Cardone manufactures these new calipers using controlled quality processes and tests every unit to help ensure dependable performance. The zinc-coated finish adds corrosion resistance and a clean OE-like appearance for long-term service on Buick LeSabre, Buick Park Avenue, Chevrolet Impala, Chevrolet Monte Carlo, and Pontiac Bonneville front right brake applications. Part number 2C-4639B is built as a new replacement component for consistent brake service.

This part fits 6 vehicles
Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.
YearMakeModelSubmodelPositionNotes
2005BuickLeSabre—Front Rightwith 15" Wheels; with Metal Piston; Supplied with Mounting Bracket; Installation Hardware Included; Unloaded Caliper
2005BuickPark Avenue—Front RightMetal piston, mounting bracket, and installation hardware included.; Unloaded Caliper
2005ChevroletImpala—Front RightGM Brake Code JB9; with Metal Piston; Supplied with Mounting Bracket; Installation Hardware Included; Unloaded Caliper
2005ChevroletMonte Carlo—Front RightMetal piston, mounting bracket, and installation hardware included.; Unloaded Caliper
2005PontiacBonnevilleSLEFront RightMetal piston, mounting bracket, and installation hardware included.; Unloaded Caliper
2004PontiacBonnevilleSLEFront RightMetal piston, mounting bracket, and installation hardware included.; Unloaded Caliper
Directly replaces or cross-references 3 part numbers
Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.
Buick — 18046197Chevrolet — 18046197Pontiac — 18046197