Power Stop K6274
Power Stop K6274 Brake Kit Instruction Manual
Front and Rear Z23 Carbon Fiber Brake Pads with Drilled & Slotted Brake Rotors Kit
1. Introduction
This manual provides essential information for the installation, operation, and maintenance of your Power Stop K6274 Z23 Evolution Sport Brake Upgrade Kit. This kit is designed to enhance the braking performance of compatible vehicles by providing perfectly matched drilled and slotted rotors, carbon-fiber ceramic brake pads, upgraded hardware, and high-performance lubricant. Please read this manual thoroughly before beginning any installation or maintenance procedures.
Product Compatibility:
- 2009-2019 CHEVROLET EXPRESS VAN 4500 DRW
- 2009-2020 CHEVROLET EXPRESS VAN 3500 Models with Dual Rear Wheels
- 2009-2020 GMC SAVANA 3500 Models with Dual Rear Wheels
- 2009-2019 GMC SAVANA 4500
Always verify compatibility using the "Amazon Confirmed Fit" bar on the product page before purchase.
2. Product Overview
The Power Stop K6274 Z23 Evolution Sport Brake Upgrade Kit is a comprehensive solution for improving vehicle braking. It includes components engineered to work together for optimal performance.
Kit Contents:
- 2x Front Drilled & Slotted Brake Rotors
- 2x Rear Drilled & Slotted Brake Rotors
- 1x Front Carbon-Fiber Ceramic Brake Pad Set with Hardware
- 1x Rear Carbon-Fiber Ceramic Brake Pad Set with Hardware
- High Performance Lubricant

Figure 2.1: Complete Power Stop K6274 Brake Kit showing front and rear rotors, brake pads, and hardware.

Figure 2.2: Individual components of the Power Stop K6274 Brake Kit, including rotors and pads for both front and rear axles.
Key Features:
- Z23 Evolution Sport Carbon-Fiber Ceramic Brake Pads: Engineered for durable, reliable stopping power, outperforming original equipment (OE) pads while resisting brake dust and noise.
- Drilled & Slotted Brake Rotors: Provide maximum brake cooling and feature Silver Zinc Dichromate plating for protection against rust and corrosion.
- Dual-Layer Rubberized Shims: Rubberized stainless steel shims insulate noise for virtually silent braking.
- Premium Hardware: High-quality stainless steel hardware kit included for an easy installation.

Figure 2.3: Close-up view of the carbon-fiber ceramic brake pads, highlighting their material composition for enhanced stopping power.

Figure 2.4: Detailed view of a drilled and slotted brake rotor, illustrating the design for improved cooling and performance.

Figure 2.5: Diagram illustrating the dual-layer rubberized shims, designed to reduce noise during braking.
3. Setup and Installation
The Power Stop K6274 Brake Upgrade Kit is designed for a direct bolt-on installation with no modifications necessary. However, professional installation is recommended. Always refer to your vehicle's service manual for specific torque specifications and safety procedures.
Before You Begin:
- Ensure the vehicle is on a level surface and properly secured with jack stands.
- Allow the braking system to cool completely before starting work.
- Gather all necessary tools, including a jack, jack stands, lug wrench, socket set, torque wrench, C-clamp or brake caliper piston tool, and brake cleaner.
- Verify that the new components match the existing ones, especially checking if your vehicle uses solid or vented rotors on the rear wheels. This can be determined by inspecting the side of the current rotor.
Video 3.1: An informational video demonstrating the visual difference between solid and vented brake rotors, which is crucial for selecting the correct replacement parts. This video is provided by the seller.
Installation Steps (General Guidelines):
- Remove the wheel and tire assembly.
- Carefully remove the brake caliper and old brake pads. Do not let the caliper hang by the brake hose.
- Remove the old brake rotor.
- Clean the hub surface thoroughly to ensure proper seating of the new rotor.
- Install the new Power Stop drilled and slotted rotor.
- Install the new Power Stop carbon-fiber ceramic brake pads with the provided hardware. Apply the high-performance lubricant to the caliper slide pins and contact points as instructed.
- Reinstall the brake caliper and torque all bolts to manufacturer specifications.
- Reinstall the wheel and tire assembly and torque lug nuts to manufacturer specifications.
- Repeat for all remaining wheels.

Figure 3.1: A mechanic installing new brake pads and rotor, demonstrating a typical step in the brake kit installation process.
4. Operating (Break-in Procedure)
Proper break-in (bedding-in) of your new Power Stop brake pads and rotors is crucial for optimal performance and longevity. Follow these steps carefully:
- Find a safe area with minimal traffic.
- Accelerate the vehicle to 35 mph (56 km/h).
- Apply moderate braking pressure to reduce speed to 5 mph (8 km/h). Do not come to a complete stop.
- Release the brakes and accelerate back to 35 mph (56 km/h).
- Repeat this procedure 5-6 times.
- After the last stop, drive for several minutes without applying the brakes to allow the system to cool down.
During the break-in process, you may notice some smoke or a distinct odor. This is normal and indicates the pads are bedding-in correctly. Avoid hard braking or emergency stops immediately after installation until the break-in procedure is complete.
5. Maintenance
Regular inspection and maintenance of your braking system are essential for safety and performance. Power Stop brake components are designed for durability, but periodic checks are still necessary.
Recommended Maintenance Schedule:
- Every 5,000-7,500 miles (8,000-12,000 km) or during tire rotations:
- Inspect brake pads for wear. Replace if pad material is less than 3mm thick.
- Check rotors for excessive wear, scoring, or warping.
- Examine brake fluid level and condition. Top off or replace as per vehicle manufacturer's recommendations.
- Inspect brake lines and hoses for leaks, cracks, or damage.
- Ensure caliper slide pins are properly lubricated and move freely.
- Annually:
- Consider a professional brake system inspection.
- Flush and replace brake fluid if recommended by your vehicle manufacturer or if fluid appears dark/contaminated.
The zinc dichromate plating on the rotors helps protect against rust and corrosion, contributing to their longevity and appearance.

Figure 5.1: Illustration of a wheel with minimal brake dust, showcasing a benefit of the Z23 Evolution Sport brake pads.
6. Troubleshooting
This section addresses common issues that may arise with your braking system after installing the Power Stop K6274 kit. If you experience any of these symptoms, follow the recommended actions. For persistent or severe issues, consult a qualified automotive technician.
| Symptom | Possible Cause | Recommended Action |
|---|---|---|
| Squealing/Grinding Noise | Improper break-in, worn pads, foreign object, lack of lubricant on contact points. | Perform break-in procedure again. Inspect pads for wear. Check for debris. Re-lubricate caliper slide pins and pad backing plates with high-performance lubricant. |
| Vibration/Pulsation during Braking | Rotor run-out (warping), uneven pad transfer, loose lug nuts, worn suspension components. | Ensure lug nuts are torqued correctly. Re-perform break-in procedure. Inspect rotors for signs of warping. Consult a technician to check for rotor run-out or suspension issues. |
| Reduced Braking Performance | Improper break-in, air in brake lines, low brake fluid, worn pads, contaminated pads/rotors. | Complete break-in procedure. Check brake fluid level. Inspect for leaks. Bleed brake lines if air is suspected. Clean pads/rotors if contaminated. |
| Excessive Brake Dust | Normal during initial break-in, or if pads are not fully bedded. | This kit is designed for low dust. Ensure break-in is complete. If excessive dust persists, verify proper installation and component integrity. |
7. Specifications
| Brand | Power Stop |
| Model Number | K6274 |
| Product Name | Power Stop K6274 Front and Rear Z23 Carbon Fiber Brake Pads with Drilled & Slotted Brake Rotors Kit |
| Item Weight | 144.3 pounds |
| Product Dimensions | 14 x 14 x 14 inches |
| Rotor Type | Drilled & Slotted |
| Pad Material | Carbon-Fiber Ceramic |
| Rotor Finish | Silver Zinc Dichromate Plated |
| UPC | 889906296652 |
8. Warranty Information
The Power Stop K6274 Brake Kit comes with a 36 month / 36,000 miles warranty. This warranty covers defects in materials and workmanship under normal use and service. For specific terms, conditions, and to initiate a warranty claim, please refer to the official Power Stop website or contact their customer support.
9. Support and Contact
For additional assistance, technical support, or inquiries regarding your Power Stop K6274 Brake Kit, please utilize the following resources:
- Power Stop Official Website: www.powerstop.com
- Amazon Product Page: View on Amazon.com
- Customer Support: Refer to the Power Stop website for contact information, including phone numbers and email support.
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