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GM Duramax L5P 6.6L - CCV Upgrade Kit (2017-2024)
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- Regular price
- $349.99
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- $349.99
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DESCRIPTION
DESCRIPTION
The GM Duramax L5P 6.6L CCV Upgrade Kit is a complete, high-quality replacement for the failure-prone factory crankcase ventilation (CCV) system found on 2017–2024 GMC Sierra and Chevy Silverado HD trucks. This kit replaces the OEM plastic PCV box with billet aluminum components, solving common issues like swelling, leaking, and clogging in the factory system.
Key Features
- High-Quality Construction: All billet aluminum components are precision-machined and include perfectly fitting O-rings, ensuring a secure and leak-free installation.
- Complete Kit: Comes with everything needed for a full upgrade—no hunting for extra parts. Each piece is designed to work together seamlessly.
- Quick Installation: Installs in less than an hour in most cases, depending on bolt removal from the factory system.
Benefits
- Fixes Factory Flaws: The stock plastic CCV system is prone to swelling, clogging, and cracking over time. When blocked, it can cause excess crankcase pressure, leading to oil leaks from the rear main seal, front main seal, oil pan gasket, and other vulnerable areas.
- Improves Reliability: This upgraded system eliminates the failure points of the factory PCV box, helping to protect your engine from future oil leak issues.
- Clean and Professional Look: The billet parts not only perform better but also enhance the appearance of your engine bay.
Installation & Compatibility
- Vehicle Fit: Fits all 2017–2024 GMC Sierra and Chevy Silverado 2500/3500 HD trucks equipped with the 6.6L Duramax L5P engine.
- Simple Installation: Installs easily using basic hand tools. Ideal for both DIY enthusiasts and professional shops.
PLEASE NOTE!
PLEASE NOTE!
- Off-Road Use Only: The products sold on this website are intended for off-road use only, and may not be legal for use on public highways where pollution control laws apply.
- Check Local Laws: Before purchasing and installing any of these parts, please check your local and state laws to confirm whether the modifications are legal in your area.
- Professional Installation Recommended: These kits and parts are strongly recommended to be installed by professional mechanics only. Improper installation may lead to performance issues or damage to your vehicle. Please note that, unless specified differently on the product page, our parts do not include installation instructions. Our components are intended for individuals with a proficient understanding of mechanical systems and procedures. Like many aftermarket parts compatible with a variety of vehicles, minor adjustments or modifications may be necessary during the installation process. We cannot accept returns or offer refunds on the basis of an inability to complete the installation due to the absence of instructions.
- Warranty: The use of these parts will void the warranty of your vehicle. Please confirm with your vehicle manufacturer before purchase and installation.
- No Liability: Tuner Depot is not responsible for any damage or issues that may arise from the use of these parts.
- Product Images: Product images are for illustrative purposes only and may differ from the actual product due to manufacturer design changes or improvements.
- No Performance Guarantees: While these parts are designed to enhance the performance of your vehicle, no guarantees are made regarding the specific performance gains that will be achieved.
Shipping Policy
Shipping Policy
At Tuner Depot, we understand the importance of timely delivery when it comes to your performance parts. We are committed to ensuring a seamless shipping experience, striving to dispatch your orders with utmost efficiency and speed.
Our Shipping Policy: Our aim is to dispatch all orders within two business days, providing you with a quick and efficient processing time. However, please bear in mind that unforeseen circumstances beyond our control may occasionally impact shipping times.
Factors Affecting Shipping:
Weather Conditions: While we pride ourselves on our fast and efficient order processing, adverse weather conditions such as rain, snow, or sleet may affect delivery timelines. We assure you that we will make every effort to overcome such challenges and minimize any delays.
Holiday Periods: Even our dedicated team needs a well-deserved break during holidays. Please note that our shipping center will be closed on such occasions. Rest assured, we will resume shipping promptly on the next business day. During peak holiday seasons, please allow for potential delays, but be assured that we will keep you informed every step of the way and work diligently to deliver your order as swiftly as possible.
Staff Availability: While we have an exceptional team, we recognize that unforeseen circumstances can occasionally affect our staffing levels. In such cases, we may experience minor delays. However, we want to assure you that we are committed to swiftly resolving any staffing issues and maintaining our high standards of service.
We genuinely appreciate your understanding and patience during any unexpected obstacles we may encounter along the way. Be assured that we will utilize every resource available to deliver your performance parts to you promptly.
Thank you for choosing Tuner Depot, where our passion fuels our commitment to outstanding customer service.
Happy tuning!



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T304 Stainless Steel
The Purest Stainless Steel used in Exhaust System Manufacturing
High Rust Resistance
Lasts Up To 20+ years
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T409 Stainless Steel
The Standard Stainless Steel used in Exhaust System Manufacturing
Low Rust Resistance
Lasts Up To 5-8 Years
Looks Dull
Attention
A 2022 Cummins Tune Package was added to your cart. This tune is a beta tune that may cause the following:
- Low power
- Poor fuel mileage
- Engine codes that may appear
- Poor shifting characteristics
For a tested and proven tune, please view our Ram Cummins 6.7L All-in-One DPF/DEF/EGR Delete Kit w/ECM Swap (2022-2024)
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Tariff-Smart Shipping — Only at Tuner Depot
NEW! Tariff Protection Plan
During checkout, you’ll have an option to add an additional 10% tariff protection to your order. This will ensure that IF you do receive a tariff or duty charge upon your delivery, we will cover the cost of that bill. You shouldn’t get any extra charges, but if you do, simply reach out to Tuner Depot and supply us with proof of the additional charge and we’ll cover 100% of the charges.
Here’s how it works:
- You add the plan.
- Customs charges show up? Unlikely, but if they do, send us the bill.
- We pay it—every cent.
That means no surprise costs, ever. Customs might flag a package now and then, but with Tariff Protection you’ll never be the one footing the bill. Upgrade with confidence while we handle the paperwork.