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  • For Off-Road Use Only
    Tuner Depot GM Duramax 6.6L Gator Head Studs (2001 - 2016)
  • For Off-Road Use Only
    Tuner Depot Ford Powerstroke 6.4L Gator Head Studs (2008 - 2010)
  • For Off-Road Use Only
    Tuner Depot Ram Cummins 5.9L & 6.7L Gator Head Studs (1998.5 - 2025)
  • For Off-Road Use Only
    Tuner Depot Ram Cummins 5.9L & 6.7L Gator Head Studs (1998.5 - 2025)
  • For Off-Road Use Only
    Tuner Depot Ram Cummins 5.9L & 6.7L Gator Head Studs (1998.5 - 2025)
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GM Duramax 6.6L - Gator Head Studs (2001-2016)

Sku: HSK66

This product fits:

2001-2016 Chevy Duramax LB7 / LLY / LBZ / LMM / LML 6.6L Silverado 2500 / 3500
2011-2016 GMC Duramax LB7 / LLY / LBZ / LMM / LML 6.6L Sierra / 2500 / 3500
$619.99
-0%
Shipping calculated at checkout.

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Notification for the incorrect product/variant will be listed here.

Click here to find the right tuner for your truck!
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Within the device vehicle info section, look for the value with the text containing "14C204":
HC3A-14C204-ABH

Once you receive the device, please contact us with your serial number, VIN, and ECU strategy so we can create the custom tunes and send it to you for tuning your vehicle.

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Black Bandit Series 3 material image
T304 Stainless Steel

The Purest Stainless Steel used in Exhaust System Manufacturing

rust resistant icon

High Rust Resistance

Lasts up to 20+ years icon

Lasts Up To 20+ years

Looks better icon

Looks Better

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T409 Stainless Steel

The Standard Stainless Steel used in Exhaust System Manufacturing

rust prone icon

Low Rust Resistance

Lasts up to 20+ years icon

Lasts Up To 5-8 Years

Looks better icon

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)

Attention

You have added a product to your cart that requires the Service. This required additional service is NOT included in the price shown on TunerDepot.com. This means that you will be required to pay for the Service in addition to the product you have just added to the cart.

GM Duramax 6.6L — Gator Head Studs (2001–2016)

Engineered to protect your 6.6L Duramax diesel engine (LB7, LLY, LBZ, LMM, LML) under extreme stress, the Gator Heavy Duty Head Stud Kit delivers superior clamping force designed to prevent head gasket failures in the most demanding applications.

Key Features:

  • Heavy Duty Construction: Built to withstand high boost pressures, heavy towing loads, and aggressive tuning.
  • Superior Clamping Force: Eliminates the risk of head gasket failure by maintaining a secure seal under extreme cylinder pressures.
  • Durability and Reliability: Unlike factory head bolts that stretch and fail under stress, these studs are engineered for maximum longevity.
  • Complete Kit: Includes everything needed for installation to ensure proper clamp load and consistent performance.

Why Choose Gator Head Studs?

Factory head bolts are prone to stretching and failure under high-pressure conditions such as drag racing, sled pulling, off-road performance, and heavy-duty towing. The Gator Heavy Duty Head Stud Kit provides the strength and reliability needed to keep your engine sealed and performing optimally in all conditions.

Vehicle Compatibility:

  • 2001–2016 GM/Chevy 6.6L Duramax Engines (LB7, LLY, LBZ, LMM, LML)

Nothing Bites Like Gator

Upgrade to Gator Heavy Duty Head Studs and experience unparalleled strength, reliability, and peace of mind for your Duramax diesel engine.

Important Product Information

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. Unless specified differently on the product page, our parts do not include installation instructions. They 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 at Tuner Depot

At Tuner Depot, we understand the importance of timely delivery for your performance parts. We're 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, unforeseen circumstances beyond our control may occasionally impact shipping times.
Factors Affecting Shipping:
  • Weather Conditions: Adverse weather conditions such as rain, snow, or sleet may affect delivery timelines. We will make every effort to minimize any delays.
  • Holiday Periods: Please note that our shipping center will be closed during holidays. We will resume shipping promptly on the next business day. Allow for potential delays during peak seasons, but rest assured, we will keep you informed every step of the way.
  • Staff Availability: Unforeseen circumstances can occasionally affect our staffing levels, possibly leading to minor delays. We are committed to swiftly resolving any issues to maintain our high standards of service.
We genuinely appreciate your understanding and patience during any unexpected obstacles. Be assured that we will utilize every resource available to deliver your performance parts promptly.