GARRETT 886976-5004 Duramax GT3788V 3500HD 6.6L

( Brand: Garrett ), ( Manufacturer Part Number: 886976-5004 ), ( Type: Turbocharger ), ( Manufacturer Warranty: 1 Year ), ( Color: Gray )

Review GARRETT New Gmc Chevy 3500hd Duramax 6.6l fits TURBO LML 2500HD

Introducing the Garrett GT3788V Turbocharger, an exceptional upgrade for your GMC Chevy 2500HD or 3500HD Duramax LML 6.6L diesel engine. This turbocharger, model number 886976-5004, is engineered to deliver impressive power gains while maintaining exceptional durability and reliability.

The GT3788V is part of Garrett's renowned GT Series, known for its advanced technology and high performance. This particular turbocharger features a variable vane turbine design, which allows for optimal efficiency across a broad RPM range. It also boasts a high flow compressor wheel, enabling increased airflow and resulting in more power.

This turbocharger is specifically designed for diesel applications and is capable of handling the high temperatures and pressures that come with them. It's constructed from high-strength materials, including a durable cast aluminum housing, to ensure long-lasting performance.

Installing the GT3788V turbocharger in your vehicle can provide significant power gains, with some users reporting increases in horsepower and torque in the range of 50 to 100 horsepower and 100 to 200 pound-feet of torque, respectively. These power gains can lead to improved acceleration and towing capabilities.

Additionally, the GT3788V comes with a number of features designed to make installation as easy as possible. These include a factory-matched turbine inlet and outlet size, as well as a factory-matched wastegate actuator.

In summary, the Garrett GT3788V Turbocharger is a high-performance upgrade for your GMC Chevy 2500HD or 3500HD Duramax LML 6.6L diesel engine. With its advanced variable vane turbine design, high-flow compressor wheel, and durable construction, this turbocharger delivers impressive power gains while maintaining exceptional reliability and longevity.

Pros and Cons of buying a Garrett GT3788V Turbocharger for GMC Chevy 2500HD/3500HD Duramax LML 6.6L

The Garrett GT3788V is a popular turbocharger option for upgrading the performance of GMC Chevy 2500HD/3500HD Duramax LML 6.6L trucks. Like any other purchase, it comes with its advantages and disadvantages. In this article, we will discuss the key pros and cons to help you make an informed decision.

1. Enhanced Power: The Garrett GT3788V delivers significant power gains, with some users reporting an increase of up to 100 horsepower and 200 lb-ft of torque.

2. Improved Response Time: This turbocharger offers quick spooling and response time, leading to improved acceleration and overall driving performance.

3. Durability: Garrett is known for manufacturing high-quality turbochargers that can withstand the rigors of heavy-duty use. The GT3788V is no exception, with a robust design and durable components.

4. Versatility: This turbocharger is compatible with various fuel systems, including EFI and mechanical injection, making it a versatile option for different applications.

5. Customizable: The Garrett GT3788V can be fine-tuned to various engine configurations and boost levels, providing the flexibility to achieve desired performance levels.

1. Cost: The Garrett GT3788V is a premium turbocharger, and its price tag reflects its high-performance capabilities.

2. Complex Installation: Installing this turbocharger can be a complex process, requiring specialized tools and knowledge. Professional installation is often recommended.

3. Potential for Increased Emissions: Depending on the tuning and modifications made to the vehicle, the Garrett GT3788V may lead to increased emissions. Ensure proper tuning and emissions compliance to minimize this concern.

4. Potential for Engine Damage: Improper installation, tuning, or excessive boost levels can lead to engine damage. Proper installation, tuning, and maintenance are essential to minimize this risk.

The Garrett GT3788V turbocharger offers impressive power gains, improved response time, durability, versatility, and customizability. However, it comes with a premium price tag, complex installation, potential for increased emissions, and the risk of engine damage if not installed and tuned correctly.

If you are looking for a high-performance turbocharger for your GMC Chevy 2500HD/3500HD Duramax LML 6.6L and have the necessary budget, technical expertise, and resources for proper installation and tuning, the Garrett GT3788V could be an excellent choice for you. Otherwise, consider alternative options with a more manageable cost, installation complexity, and risk profile.

Details:

This is an exact, direct fit OEM replacement Turbo. Performance results of this product are highly dependent upon your vehicles modifications and tuning/calibration. Improvements in efficiency and flow can be attributed to the light weight forged fully-machined compressor wheel. The use of this product above max Turbocharger speed is at the owners risk.

They are sold AS IS unless stated otherwise. The Turbocharger has to be rebuilt function. And can result in damage and premature failure.

Manufacturer: Garrett. BRAND NEW GENUINE GARRETT TURBOCHARGER, This is a TURBOCHARGER. All used Turbocharger, component, and kit come with no warranty. Speed sensors sold separately.

Boost response of this Power Max Turbocharger compared to OEM has not been tested. The most reliable way to make sure the model of Turbo is finding part number from nameplate your old. To protect the Turbocharger from overspend when operating, a speed sensor port can be machined into compressor housing for fitment of part numbers includes and gauge. All Turbocharger cores come with no warranty.

WARNING: Maximum allowable Turbocharger speed is 127krpm. Turbo model: GT3788V. Engine: Duramax LML.

part #: 8869765004 prices

• $1725.00-$3095.00

specifications turbiparts:

• for models: Turbo, Lml, 2500hd
• for makes: Gmc, Chevy
• brand: Garrett
• mpn: 886976-5004
• type: Turbocharger
• manufacturer warranty: 1 Year
• color: Gray

returns turbiparts:

• paid by: Seller
• time: 30 Days
• policy: Returns Accepted

general turbiparts:

• condition: New
• Air Fuel Delivery > Turbos, Superchargers Intercoolers > Turbos Parts

shipping turbiparts:

• class: Standard, Expedited, One-day
• transit: 2-6 Days
• cost: $171.87
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• carrier: UPS
• type: Calculated

offer turbiparts:

• quantity: 1
• options: Ship-to-home
• sold: 0
• availability: In Stock
• started: December 9, 2025

seller turbiparts:

• rating: 100.0%
• # reviews: 1298
• city: ana, California

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