HomeBrake > Brake HydraulicsPowerStop L4276 Disc Brake Caliper - Front Left
Part #: L4276

PowerStop L4276 Disc Brake Caliper - Front Left

PowerStop - Front OE Stock Replacement Caliper, Front Left
⚙️ 45 vehicles fit this part
🔍
Select your vehicle to confirm fitment
Verify this part fits before purchasing — free returns if it doesn't
$104.37Free Shipping
🚚Free ShippingNo Cost to Continental U.S.
🔄Free Returns*Wrong fit? No cost
🛡️60-Day ReturnsMoney back guarantee
*Free return shipping only qualifies if our fitment verification tool is used.
🔥
✅ In Stock · Ready To Ship Most orders ship same-day if ordered before 1pm CST.
OE Direct Replacement — Bolt-on fit, no modifications needed
📦PowerStop - Front OE Stock Replacement Caliper, Front Left
🚗Fitment: Buick, Chevrolet, Oldsmobile, and Pontiac, Cutlass Supreme, Grand Prix, Lumina, Monte Carlo, and Regal
🔄Easy Returns — Return within 60 days for a full refund
🚚Fast Shipping — Most orders ship same business day before 1pm CST

PowerStop Front OE Stock Replacement Caliper Overview

The PowerStop - Front OE Stock Replacement Caliper (Part Number L4276) is designed to provide reliable braking performance for select Buick, Chevrolet, Oldsmobile, and Pontiac vehicles. Engineered as a direct OE replacement, this disc brake caliper ensures consistent stopping power and durability for models like the Cutlass Supreme, Grand Prix, Lumina, Monte Carlo, and Regal.

  • Cast iron caliper casting for strength and heat resistance
  • Floating caliper design with two steel pistons (41.91 mm diameter)
  • Includes caliper slides and mounting bracket for proper fitment
  • Gray finish for corrosion resistance and OEM appearance
  • Bleeder screw with M10 x 1.5 thread size for easy brake fluid maintenance
  • Grade type: Regular, suitable for standard driving conditions

Detailed Product Features and Specifications

This PowerStop front disc brake caliper features a cast iron construction that offers durability and effective heat dissipation during braking. The floating caliper design incorporates two steel pistons, each measuring 41.91 mm in diameter, which provide balanced clamping force on the brake pads. The caliper slides are included to ensure smooth movement and proper alignment, while the mounting bracket is supplied to facilitate secure installation. The gray color finish helps resist corrosion and maintains an OEM look. Additionally, the bleeder screw with an M10 x 1.5 thread size allows for straightforward brake fluid bleeding and maintenance.

About the PowerStop - Front OE Stock Replacement Caliper Line

The PowerStop - Front OE Stock Replacement Caliper line is engineered to meet original equipment specifications, offering a direct replacement solution for front disc brake calipers. This product line focuses on maintaining factory performance and fitment, making it suitable for vehicle owners seeking a reliable and consistent braking component without modifications. The L4276 caliper is part of this line, designed specifically for compatibility with various Buick, Chevrolet, Oldsmobile, and Pontiac models.

Compatible Vehicles and Common Applications

  • Buick Cutlass Supreme front brake replacement
  • Chevrolet Lumina and Monte Carlo front disc brake upgrade
  • Oldsmobile Regal front caliper replacement
  • Pontiac Grand Prix front brake system maintenance

Installation Notes and Tips

  • Ensure the mounting bracket is properly secured before installing the caliper
  • Use compatible brake pads designed for floating calipers
  • Bleed the brake system using the M10 x 1.5 bleeder screw to remove air
  • Inspect caliper slides for smooth operation and lubricate if necessary
  • Verify piston movement and seal condition during installation

Quality Assurance and Warranty

PowerStop manufactures this front OE stock replacement caliper to meet or exceed OEM standards for fit, form, and function. The cast iron construction and steel pistons contribute to long-lasting performance under regular driving conditions. While specific warranty details are not provided, PowerStop products typically undergo rigorous quality control to ensure reliability and safety in braking applications.

BrandPowerStop
Part NumberL4276
PositionPowerStop - Front OE Stock Replacement Caliper, Front Left
Mounting Hardware IncludedNo
Grade TypeRegular
Caliper Casting MaterialCast iron
Caliper Slides IncludedYes
Piston Quantity2
Caliper TypeFloating
Piston Diameter41.91
Caliper ColorGray
Mounting Bracket IncludedYes
Piston MaterialSteel
Bleeder Screw Thread SizeM10 x 1.5

This part fits 45 vehicles. Search below:

YearMakeModelDrive TypePositionNotes
2001ChevroletLuminaFront LeftPowerStop - Front OE Stock Replacement Caliper
2000ChevroletLuminaFront LeftPowerStop - Front OE Stock Replacement Caliper
1999ChevroletLuminaFront LeftPowerStop - Front OE Stock Replacement Caliper
1999ChevroletMonte CarloFront LeftPowerStop - Front OE Stock Replacement Caliper
1998ChevroletLuminaFront LeftPowerStop - Front OE Stock Replacement Caliper
1998ChevroletMonte CarloFront LeftPowerStop - Front OE Stock Replacement Caliper
1997ChevroletLuminaFront LeftPowerStop - Front OE Stock Replacement Caliper
1997ChevroletMonte CarloFront LeftPowerStop - Front OE Stock Replacement Caliper
1997OldsmobileCutlass SupremeFront LeftPowerStop - Front OE Stock Replacement Caliper
1996BuickRegalFront LeftPowerStop - Front OE Stock Replacement Caliper
1996ChevroletLuminaFront LeftPowerStop - Front OE Stock Replacement Caliper
1996ChevroletMonte CarloFront LeftPowerStop - Front OE Stock Replacement Caliper
1996OldsmobileCutlass SupremeFWDFront LeftPowerStop - Front OE Stock Replacement Caliper
1996PontiacGrand PrixFront LeftPowerStop - Front OE Stock Replacement Caliper
1995BuickRegalFront LeftPowerStop - Front OE Stock Replacement Caliper
1995ChevroletLuminaFront LeftPowerStop - Front OE Stock Replacement Caliper
1995ChevroletMonte CarloFront LeftPowerStop - Front OE Stock Replacement Caliper
1995OldsmobileCutlass SupremeFWDFront LeftPowerStop - Front OE Stock Replacement Caliper
1995PontiacGrand PrixFront LeftPowerStop - Front OE Stock Replacement Caliper
1994BuickRegalFront LeftPowerStop - Front OE Stock Replacement Caliper
1994ChevroletLuminaFront LeftPowerStop - Front OE Stock Replacement Caliper
1994OldsmobileCutlass SupremeFWDFront LeftPowerStop - Front OE Stock Replacement Caliper
1994PontiacGrand PrixFront LeftPowerStop - Front OE Stock Replacement Caliper
1993BuickRegalFront LeftPowerStop - Front OE Stock Replacement Caliper
1993ChevroletLuminaFront LeftPowerStop - Front OE Stock Replacement Caliper
1993OldsmobileCutlass SupremeFWDFront LeftPowerStop - Front OE Stock Replacement Caliper
1993PontiacGrand PrixFront LeftPowerStop - Front OE Stock Replacement Caliper
1992BuickRegalFront LeftPowerStop - Front OE Stock Replacement Caliper
1992ChevroletLuminaFront LeftPowerStop - Front OE Stock Replacement Caliper
1992OldsmobileCutlass SupremeFWDFront LeftPowerStop - Front OE Stock Replacement Caliper
1992PontiacGrand PrixFront LeftPowerStop - Front OE Stock Replacement Caliper
1991BuickRegalFront LeftPowerStop - Front OE Stock Replacement Caliper
1991ChevroletLuminaFront LeftPowerStop - Front OE Stock Replacement Caliper
1991OldsmobileCutlass SupremeFWDFront LeftPowerStop - Front OE Stock Replacement Caliper
1991PontiacGrand PrixFront LeftPowerStop - Front OE Stock Replacement Caliper
1990BuickRegalFront LeftPowerStop - Front OE Stock Replacement Caliper
1990ChevroletLuminaFront LeftPowerStop - Front OE Stock Replacement Caliper
1990OldsmobileCutlass SupremeFWDFront LeftPowerStop - Front OE Stock Replacement Caliper
1990PontiacGrand PrixFront LeftPowerStop - Front OE Stock Replacement Caliper
1989BuickRegalFront LeftPowerStop - Front OE Stock Replacement Caliper
1989OldsmobileCutlass SupremeFWDFront LeftPowerStop - Front OE Stock Replacement Caliper
1989PontiacGrand PrixFront LeftPowerStop - Front OE Stock Replacement Caliper
1988BuickRegalFront LeftPowerStop - Front OE Stock Replacement Caliper
1988OldsmobileCutlass SupremeFWDFront LeftPowerStop - Front OE Stock Replacement Caliper
1988PontiacGrand PrixFront LeftPowerStop - Front OE Stock Replacement Caliper

* Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.