3 Top PowerStop Rear Rotor & Brake Pad Kits for Your 2004 GMC Sierra
Is your trusty 2004 GMC Sierra feeling a bit sluggish when it comes to stopping power? Or perhaps you’re noticing that tell-tale squeal or a shaky pedal? If so, it might be time to think about upgrading your brake system, especially the crucial rear rotors and brake pads. For truck owners, reliable braking isn’t just a convenience; it’s a safety imperative, especially if you’re hauling cargo or towing a trailer.
When it comes to aftermarket brake solutions, PowerStop is a name that consistently comes up in conversations among truck enthusiasts. They’re renowned for providing performance upgrades that go beyond standard factory parts, offering better stopping power, reduced dust, and less noise. In this guide, we’re diving deep into some of the best PowerStop rear rotor and brake pads options available for your 2004 GMC Sierra, helping you pick the perfect kit to get your truck stopping like a champ again. Let’s roll!
Why Upgrade Your Sierra’s Brakes?
Your 2004 GMC Sierra is a workhorse, and its braking system takes a beating. Over time, original equipment (OE) brakes can wear down, leading to reduced performance. Upgrading to a premium kit like those from PowerStop offers several advantages:
- Enhanced Stopping Power: Shorter stopping distances, crucial for safety.
- Improved Durability: Components designed to last longer under various driving conditions.
- Reduced Brake Fade: Better heat dissipation means consistent performance even under heavy use.
- Less Dust and Noise: Enjoy cleaner wheels and quieter braking.
- Better Aesthetics: Drilled and slotted rotors can give your truck a more aggressive, performance-oriented look.
Let’s take a closer look at some top-notch PowerStop rear rotor and brake pads options that could be just what your Sierra needs.
1. PowerStop Front & Rear Brake Kit for 2001-2010 Chevrolet/GMC Trucks (K4646-36)

This comprehensive PowerStop kit is designed for heavy-duty trucks, including the 2004 GMC Sierra 2500 HD. If you’re looking to upgrade your entire braking system, front and rear, this is an excellent choice. What really makes this kit shine is its blend of proprietary carbon-fiber ceramic brake pads and drilled & slotted performance rotors. This combination ensures maximum cooling, less brake fade, and superior stopping power, perfect for those who work their trucks hard or frequently tow heavy loads. Plus, it comes with all the necessary hardware, making installation smoother.
Key Features:
– Proprietary carbon-fiber ceramic materials enhance pad strength for heavier loads.
– Low dust braking, validated to show on average 30% less dust versus OE.
– Drilled & Slotted performance rotors for maximum cooling and heat dissipation.
– Includes stainless steel installation hardware and high temperature ceramic brake lubricant.
– Fits a wide range of heavy-duty Chevrolet and GMC trucks, including 2004 GMC Sierra 2500 HD.
Pros:
– Complete front and rear brake upgrade.
– Excellent for towing and heavy-duty applications.
– Significantly reduces brake dust and noise.
– Improved stopping power and thermal management.
– All-inclusive kit for easier installation.
Cons:
– Full front and rear kit might be more than some users need if only rear is failing.
– Might require professional installation for those less mechanically inclined.
User Impressions:
Owners rave about the noticeable improvement in stopping power, especially when towing. Many report significantly less brake dust compared to their stock brakes and appreciate the quiet operation. The overall consensus is that this kit offers a fantastic performance upgrade for heavy-duty truck owners.
2. Power Stop K2018 Rear Z23 Carbon Fiber Brake Pads with Drilled & Slotted Rotors

If you’re specifically targeting the rear brakes of your 2004 GMC Sierra 1500, this Power Stop K2018 Z23 Evolution Sport kit is a prime candidate. It’s engineered to provide a significant performance boost over standard brakes, perfect for daily driving and light hauling. The Z23 carbon-fiber ceramic compound in the pads offers enhanced stopping power with less dust, while the drilled and slotted rotors ensure your brakes stay cool under pressure. It’s a fantastic choice for those who want a focused rear brake upgrade without overhauling the entire system.
Key Features:
– Power Stop Carbon-fiber ceramic compound significantly enhances braking performance.
– Low dust braking, proven to show on average 30% less dust versus OE.
– Dual layer high temp rubberized shims insulate noise for virtually silent braking.
– Drilled & Slotted performance rotors are zinc plated for maximum rust protection.
– Brake rotor, pad & hardware engineered to work together for increased stopping power.
– Specifically fits 1999-2006 GMC Sierra 1500 (6 Lug with Single Piston Rear Calipers).
Pros:
– Ideal for daily driving and light-duty truck use.
– Excellent balance of performance, noise reduction, and dust control.
– Rust-resistant rotors for longer lifespan.
– Specifically designed as a rear brake solution.
– Good value for a targeted upgrade.
Cons:
– May not be sufficient for extreme heavy-duty towing applications.
– Only for 1500 models, not the 2500 HD.
User Impressions:
Customers love how quiet and clean these brakes are. Many report a noticeable improvement in pedal feel and responsiveness. It’s often recommended as a perfect direct-fit upgrade for Sierra 1500 owners looking for improved daily driving performance.
3. Power Stop K6562-36 Rear Z36 Truck & Tow Brake Kit

For the 2004 GMC Sierra owner who frequently tows, hauls, or navigates challenging terrain, the Power Stop K6562-36 Rear Z36 Truck & Tow Brake Kit is built for exactly that kind of abuse. This kit steps up the game with the Z36 carbon-fiber ceramic formula, providing the extreme braking performance demanded by serious truck and 4×4 enthusiasts. The components are specifically engineered to handle the stress of heavy loads and mountainous driving, ensuring your rear brakes can keep up with whatever you throw at them. This kit offers superior heat dissipation and virtually no noise, even under the most extreme conditions.
Key Features:
– Components engineered to handle the stress of towing, hauling, mountainous driving, and lifted trucks.
– Z36 Carbon-Fiber Ceramic formula provides extreme braking performance.
– Premium Stainless Steel Shims offer better heat dissipation for improved stopping power.
– Virtually no noise during operation.
– Drilled and Slotted Rotors keep your brakes cool even in the most extreme conditions.
– Dust-free braking performance.
Pros:
– Designed for extreme heavy-duty use and towing.
– Superior heat management prevents brake fade.
– Very quiet operation despite high performance.
– Exceptional stopping power for large trucks.
– Minimal brake dust.
Cons:
– Might be overkill for a daily driver that doesn’t tow or haul.
– Potentially a higher price point than less robust options.
User Impressions:
Truckers and enthusiasts who use their Sierras for serious work swear by the Z36 kits. They frequently mention the confidence these brakes inspire when coming down a grade with a heavy load, praising the consistent performance and minimal fade. The reduced dust and noise are also significant bonuses for a heavy-duty brake system.
Choosing the Right PowerStop Kit for Your 2004 GMC Sierra
When selecting your new 2004 GMC Sierra Power Stop rear rotor and brake pads, consider your driving habits and your truck’s specific model (1500 vs. 2500 HD).
- For the everyday driver (1500 model) looking for an upgrade in performance, quiet operation, and less dust: The Power Stop K2018 Rear Z23 kit is an excellent, focused choice.
- If you own a 2004 GMC Sierra 2500 HD and want to upgrade both front and rear brakes for heavy-duty use: The PowerStop Front & Rear Brake Kit (K4646-36) is a comprehensive solution.
- For the 2004 GMC Sierra owner (1500 or 2500 HD, check fitment for your specific variant) who frequently tows heavy loads or drives aggressively: The Power Stop K6562-36 Rear Z36 Truck & Tow Brake Kit offers the ultimate in heavy-duty rear braking.
No matter which PowerStop kit you choose, you’ll be investing in a significant upgrade for your truck’s safety and performance. Happy stopping!
Frequently Asked Questions (FAQs)
Q1: Why should I upgrade my 2004 GMC Sierra’s brakes to PowerStop?
A: PowerStop brake kits offer several advantages over factory brakes, including enhanced stopping power, reduced brake fade, significantly less dust, and quieter operation. They are engineered with advanced materials like carbon-fiber ceramic compounds and feature drilled and slotted rotors for better heat management, crucial for heavy trucks or those that tow.
Q2: What’s the main difference between PowerStop’s Z23 and Z36 brake pads?
A: The Z23 Evolution Sport pads are designed for daily drivers and light-duty trucks, offering an excellent balance of performance, low dust, and quiet operation. The Z36 Truck & Tow pads are a step up, formulated with a more aggressive carbon-fiber ceramic compound to provide extreme braking performance for heavy-duty trucks, towing, hauling, and off-road use, where higher heat and stress are common.
Q3: How do drilled and slotted rotors improve braking performance?
A: Drilled holes in the rotor help dissipate heat and vent gasses that build up between the pad and rotor surface, reducing brake fade. Slotted designs sweep away dust and debris, maintaining consistent contact and improving bite, especially in wet conditions. Both features contribute to cooler, more efficient braking and a sportier look.
Q4: Can I install a PowerStop brake kit myself on my 2004 GMC Sierra?
A: If you have moderate mechanical experience, the right tools, and follow a detailed service manual or online tutorial, installing a PowerStop kit can be a DIY project. However, brakes are a critical safety component. If you’re unsure at any point, it’s always best to consult a professional mechanic to ensure proper installation and safety.
Q5: How often should I inspect or replace my rear rotors and brake pads on my Sierra?
A: Brake pad and rotor lifespan vary greatly depending on driving style, vehicle use (towing, city vs. highway), and material quality. It’s generally recommended to inspect your brakes at least once a year or every 10,000-12,000 miles. Replace pads when they reach a minimum thickness (usually around 3-4mm) and rotors if they are warped, grooved, or fall below the manufacturer’s minimum thickness specification.
Q6: Will upgrading my rear brakes affect my truck’s ABS system?
A: No, upgrading to quality aftermarket brake components like PowerStop kits should not negatively affect your truck’s Anti-lock Braking System (ABS). These systems are designed to work with improved friction and heat dissipation properties. In fact, better overall braking performance can often complement and enhance the effectiveness of your ABS system in emergency stopping situations.
Q7: Are PowerStop brake kits noisy or prone to squealing?
A: PowerStop kits are specifically engineered to minimize noise. Their brake pads often feature dual-layer rubberized shims that insulate noise, and their compounds are designed for low dust and quiet operation. While some break-in noise might occur, properly installed and bedded PowerStop brakes are generally much quieter than many OE or standard aftermarket alternatives.