OE Quality
60-Day Returns

PowerStop L4994 Disc Brake Caliper - Front Right
PowerStop Front OE Stock Replacement Caliper Overview
The PowerStop - Front OE Stock Replacement Caliper (Part Number L4994) is designed for reliable braking performance on select Ford and Mercury vehicles. Engineered to meet original equipment specifications, this disc brake caliper ensures consistent stopping power for your Ford Explorer, Explorer Sport Trac, and Mercury Mountaineer.
- Compatible with Ford Explorer, Explorer Sport Trac, and Mercury Mountaineer
- Floating caliper design with two phenolic pistons
- Cast iron caliper casting for durability
- Includes caliper slides and mounting bracket
- Gray finish with M10 x 1.0 bleeder screw thread size
- Regular grade type for standard braking applications
Product Line Details: PowerStop - Front OE Stock Replacement Caliper
The PowerStop - Front OE Stock Replacement Caliper line focuses on providing direct replacement parts that match original equipment specifications. This ensures proper fitment and function for front disc brake systems on compatible vehicles. The L4994 caliper maintains the OE design with a floating caliper type and phenolic pistons, offering a balance of performance and reliability for everyday driving conditions.
Technical Specifications and Features
This disc brake caliper features a cast iron construction for strength and heat resistance. It includes two phenolic pistons with a diameter of 51.05 mm, which help reduce heat transfer to the brake fluid, minimizing the risk of brake fade. The floating caliper design allows for smooth movement and even pad wear. Included caliper slides and mounting bracket facilitate proper installation and alignment. The gray color finish provides corrosion resistance and a clean appearance.
Common Applications and Problem Solving
- Replacement for worn or seized front calipers on Ford Explorer and Mercury Mountaineer
- Addresses uneven brake pad wear due to caliper slide issues
- Resolves brake fluid leaks from damaged or worn pistons
- Improves braking consistency by restoring proper caliper function
- Suitable for restoring front brake performance on Explorer Sport Trac models
Installation Notes and Tips
Ensure the brake system is properly bled after installation to remove air and maintain braking efficiency. Verify compatibility with your specific vehicle year and model before installation. Although mounting hardware is not included, the caliper slides and mounting bracket are provided to assist with proper fitment. Use appropriate tools to avoid damage to the phenolic pistons during installation.
Quality Assurance and Warranty
PowerStop manufactures this caliper to meet or exceed OEM standards for fit, form, and function. The cast iron construction and phenolic pistons are selected for durability and performance under normal driving conditions. While specific warranty details are not provided, PowerStop products typically come with a limited warranty against defects in materials and workmanship.
| Brand | PowerStop |
|---|---|
| Part Number | L4994 |
| Position | PowerStop - Front OE Stock Replacement Caliper, Front Right |
| Mounting Hardware Included | No |
| Grade Type | Regular |
| Caliper Casting Material | Cast iron |
| Caliper Slides Included | Yes |
| Piston Quantity | 2 |
| Caliper Type | Floating |
| Piston Diameter | 51.05 |
| Caliper Color | Gray |
| Mounting Bracket Included | Yes |
| Piston Material | Phenolic |
| Bleeder Screw Thread Size | M10 x 1.0 |
This part fits 14 vehicles. Search below:
| Year | Make | Model | Position | Notes |
|---|---|---|---|---|
| 2010 | Ford | Explorer | Front Right | PowerStop - Front OE Stock Replacement Caliper |
| 2010 | Ford | Explorer Sport Trac | Front Right | PowerStop - Front OE Stock Replacement Caliper |
| 2010 | Mercury | Mountaineer | Front Right | PowerStop - Front OE Stock Replacement Caliper |
| 2009 | Ford | Explorer | Front Right | PowerStop - Front OE Stock Replacement Caliper |
| 2009 | Ford | Explorer Sport Trac | Front Right | PowerStop - Front OE Stock Replacement Caliper |
| 2009 | Mercury | Mountaineer | Front Right | PowerStop - Front OE Stock Replacement Caliper |
| 2008 | Ford | Explorer | Front Right | PowerStop - Front OE Stock Replacement Caliper |
| 2008 | Ford | Explorer Sport Trac | Front Right | PowerStop - Front OE Stock Replacement Caliper |
| 2008 | Mercury | Mountaineer | Front Right | PowerStop - Front OE Stock Replacement Caliper |
| 2007 | Ford | Explorer | Front Right | PowerStop - Front OE Stock Replacement Caliper |
| 2007 | Ford | Explorer Sport Trac | Front Right | PowerStop - Front OE Stock Replacement Caliper |
| 2007 | Mercury | Mountaineer | Front Right | PowerStop - Front OE Stock Replacement Caliper |
| 2006 | Ford | Explorer | Front Right | PowerStop - Front OE Stock Replacement Caliper |
| 2006 | Mercury | Mountaineer | Front Right | PowerStop - Front OE Stock Replacement Caliper |
* Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.