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PowerStop L4276 Disc Brake Caliper - Front Left
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.
| Brand | PowerStop |
| Part Number | L4276 |
| Position | PowerStop - Front OE Stock Replacement Caliper, Front Left |
| Mounting Hardware Included | No |
| Grade Type | Regular |
| Caliper Casting Material | Cast iron |
| Caliper Slides Included | Yes |
| Piston Quantity | 2 |
| Caliper Type | Floating |
| Piston Diameter | 41.91 |
| Caliper Color | Gray |
| Mounting Bracket Included | Yes |
| Piston Material | Steel |
| Bleeder Screw Thread Size | M10 x 1.5 |
This part fits 45 vehicles. Search below:
| Year | Make | Model | Drive Type | Position | Notes |
|---|---|---|---|---|---|
| 2001 | Chevrolet | Lumina | Front Left | PowerStop - Front OE Stock Replacement Caliper | |
| 2000 | Chevrolet | Lumina | Front Left | PowerStop - Front OE Stock Replacement Caliper | |
| 1999 | Chevrolet | Lumina | Front Left | PowerStop - Front OE Stock Replacement Caliper | |
| 1999 | Chevrolet | Monte Carlo | Front Left | PowerStop - Front OE Stock Replacement Caliper | |
| 1998 | Chevrolet | Lumina | Front Left | PowerStop - Front OE Stock Replacement Caliper | |
| 1998 | Chevrolet | Monte Carlo | Front Left | PowerStop - Front OE Stock Replacement Caliper | |
| 1997 | Chevrolet | Lumina | Front Left | PowerStop - Front OE Stock Replacement Caliper | |
| 1997 | Chevrolet | Monte Carlo | Front Left | PowerStop - Front OE Stock Replacement Caliper | |
| 1997 | Oldsmobile | Cutlass Supreme | Front Left | PowerStop - Front OE Stock Replacement Caliper | |
| 1996 | Buick | Regal | Front Left | PowerStop - Front OE Stock Replacement Caliper | |
| 1996 | Chevrolet | Lumina | Front Left | PowerStop - Front OE Stock Replacement Caliper | |
| 1996 | Chevrolet | Monte Carlo | Front Left | PowerStop - Front OE Stock Replacement Caliper | |
| 1996 | Oldsmobile | Cutlass Supreme | FWD | Front Left | PowerStop - Front OE Stock Replacement Caliper |
| 1996 | Pontiac | Grand Prix | Front Left | PowerStop - Front OE Stock Replacement Caliper | |
| 1995 | Buick | Regal | Front Left | PowerStop - Front OE Stock Replacement Caliper | |
| 1995 | Chevrolet | Lumina | Front Left | PowerStop - Front OE Stock Replacement Caliper | |
| 1995 | Chevrolet | Monte Carlo | Front Left | PowerStop - Front OE Stock Replacement Caliper | |
| 1995 | Oldsmobile | Cutlass Supreme | FWD | Front Left | PowerStop - Front OE Stock Replacement Caliper |
| 1995 | Pontiac | Grand Prix | Front Left | PowerStop - Front OE Stock Replacement Caliper | |
| 1994 | Buick | Regal | Front Left | PowerStop - Front OE Stock Replacement Caliper | |
| 1994 | Chevrolet | Lumina | Front Left | PowerStop - Front OE Stock Replacement Caliper | |
| 1994 | Oldsmobile | Cutlass Supreme | FWD | Front Left | PowerStop - Front OE Stock Replacement Caliper |
| 1994 | Pontiac | Grand Prix | Front Left | PowerStop - Front OE Stock Replacement Caliper | |
| 1993 | Buick | Regal | Front Left | PowerStop - Front OE Stock Replacement Caliper | |
| 1993 | Chevrolet | Lumina | Front Left | PowerStop - Front OE Stock Replacement Caliper | |
| 1993 | Oldsmobile | Cutlass Supreme | FWD | Front Left | PowerStop - Front OE Stock Replacement Caliper |
| 1993 | Pontiac | Grand Prix | Front Left | PowerStop - Front OE Stock Replacement Caliper | |
| 1992 | Buick | Regal | Front Left | PowerStop - Front OE Stock Replacement Caliper | |
| 1992 | Chevrolet | Lumina | Front Left | PowerStop - Front OE Stock Replacement Caliper | |
| 1992 | Oldsmobile | Cutlass Supreme | FWD | Front Left | PowerStop - Front OE Stock Replacement Caliper |
| 1992 | Pontiac | Grand Prix | Front Left | PowerStop - Front OE Stock Replacement Caliper | |
| 1991 | Buick | Regal | Front Left | PowerStop - Front OE Stock Replacement Caliper | |
| 1991 | Chevrolet | Lumina | Front Left | PowerStop - Front OE Stock Replacement Caliper | |
| 1991 | Oldsmobile | Cutlass Supreme | FWD | Front Left | PowerStop - Front OE Stock Replacement Caliper |
| 1991 | Pontiac | Grand Prix | Front Left | PowerStop - Front OE Stock Replacement Caliper | |
| 1990 | Buick | Regal | Front Left | PowerStop - Front OE Stock Replacement Caliper | |
| 1990 | Chevrolet | Lumina | Front Left | PowerStop - Front OE Stock Replacement Caliper | |
| 1990 | Oldsmobile | Cutlass Supreme | FWD | Front Left | PowerStop - Front OE Stock Replacement Caliper |
| 1990 | Pontiac | Grand Prix | Front Left | PowerStop - Front OE Stock Replacement Caliper | |
| 1989 | Buick | Regal | Front Left | PowerStop - Front OE Stock Replacement Caliper | |
| 1989 | Oldsmobile | Cutlass Supreme | FWD | Front Left | PowerStop - Front OE Stock Replacement Caliper |
| 1989 | Pontiac | Grand Prix | Front Left | PowerStop - Front OE Stock Replacement Caliper | |
| 1988 | Buick | Regal | Front Left | PowerStop - Front OE Stock Replacement Caliper | |
| 1988 | Oldsmobile | Cutlass Supreme | FWD | Front Left | PowerStop - Front OE Stock Replacement Caliper |
| 1988 | Pontiac | Grand Prix | Front Left | PowerStop - Front OE Stock Replacement Caliper |
* Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.