GARRETT 465404-0004 Gm 25516899 3.8L 4654-0004

( Brand: Garrett ), ( Manufacturer Part Number: 465404-0004 ), ( Type: Camshaft ), ( Oe/oem Part Number: 25518699 ), ( Country Of Origin: United States ), ( Performance Part: No )

Review GARRETT Gm Part Buick 3.8l Original Reman fits TURBO

Introducing the Garrett GT2551S Turbocharger, a high-performance upgrade for your Buick 3.8L engine with the part number 4654-0004. This turbocharger, specifically modeled as the Garrett GT2551S-4654-0004-00, is meticulously engineered to deliver exceptional power gains, improved responsiveness, and enhanced driving dynamics for your vehicle.

The GT2551S is part of Garrett's renowned Gen II line of turbochargers, which boasts advanced technologies and refined engineering to ensure optimal performance and durability. The compressor wheel is a twin-scroll design, which allows for efficient airflow separation and reduces turbulence, ultimately contributing to increased power output and a more consistent boost curve.

The turbine housing is designed with Garrett's Advanced Technology (GTX) series material, a high-strength, lightweight composite that resists thermal shock and maintains its structural integrity even under the most demanding conditions. This composite material also facilitates excellent thermal efficiency, minimizing heat dissipation and ensuring a quick response from the turbocharger.

The GT2551S turbocharger features a ball-bearing center housing, which reduces friction and contributes to a more responsive and efficient power delivery. The ball-bearing design also enables a more compact size, making it an ideal fit for various automotive applications.

This turbocharger is specifically calibrated for the Buick 3.8L engine, ensuring a seamless integration with your vehicle's powertrain. The installation process is relatively straightforward, with a variety of installation kits and resources available to help guide you through the process.

In summary, the Garrett GT2551S Turbocharger (part number 4654-0004) is an exceptional upgrade for your Buick 3.8L engine. It delivers impressive power gains, enhanced responsiveness, and improved driving dynamics, all while maintaining the durability and reliability you've come to expect from Garrett.

The Garrett GT2871R Gen II Turbocharger (Garrett part number 4654-0004) is a popular choice for upgrading the performance of 3.8L Buick engines. Here are some pros and cons to help you make an informed decision about purchasing this turbocharger.

1. High Performance: The Garrett GT2871R Gen II is a high-performance turbocharger that can deliver significant power gains, making it an excellent choice for enthusiasts looking to enhance the performance of their Buick 3.8L engine.

2. Durability: Garrett is a well-known brand in the automotive industry, and their turbochargers are renowned for their durability and reliability. The GT2871R Gen II is no exception, as it is designed to withstand the rigors of high-performance use.

3. Wide Compatibility: This turbocharger is compatible with a wide range of applications, including the 3.8L Buick engine, making it a versatile option for those looking to upgrade their vehicle's power output.

4. Efficient: The GT2871R Gen II is known for its efficiency, which can help improve fuel economy and reduce emissions, making it an eco-friendly choice for those concerned about the environment.

1. Complex Installation: Installing a turbocharger like the Garrett GT2871R Gen II can be a complex and time-consuming process that requires specialized knowledge and tools. It may be wise to seek the assistance of a professional mechanic to ensure a proper installation.

2. Cost: Turbochargers like the Garrett GT2871R Gen II can be quite expensive, and the cost of the turbocharger itself is just the beginning. Additional expenses, such as installation labor, parts, and tuning, can add up quickly.

3. Maintenance: Turbochargers require regular maintenance to ensure they continue to function properly. This includes regular oil changes, filter replacements, and other maintenance tasks. Failure to maintain the turbocharger can lead to performance issues and potentially expensive repairs.

The Garrett GT25516899 4654-0004 turbocharger is a high-performance and durable option for those looking to upgrade the power output of their Buick 3.8L engine. However, it comes with some drawbacks, including a complex installation process, high cost, and ongoing maintenance requirements.

If you are willing to invest the time, money, and effort required to properly install and maintain this turbocharger, it can provide significant performance gains and make your Buick a formidable powerhouse. Alternatively, if you are looking for a more cost-effective or less complex solution, there may be other options to consider. Ultimately, the decision to purchase the Garrett GT2871R Gen II turbocharger is a personal one that depends on your specific needs, budget, and goals.

Details:

25516899 GM PART NUMBER FITS BUICK 3.8L ENGINE, ORIGINAL GARRETT TURBOCHARGER # 4654-0004 REMANUFACTURED TURBO.

part #: 4654040004 price

• $525.00

specifications cashalif:

• for models: Turbo
• for makes: Buick
• brand: Garrett
• mpn: 465404-0004
• type: Camshaft
• oe/oem part number: 25518699
• country of origin: United States
• performance part: No

payments cashalif:

• wallet: Apple-pay
• credit card: Discover
• other

offer cashalif:

• quantity: 1
• started: February 27, 2026
• options: Ship-to-home
• sold: 0
• availability: In Stock

seller cashalif:

• # reviews: 217
• city: Mobile, Alabama
• rating: 100.0%

shipping cashalif:

• type: Calculated
• class: Economy
• carrier: UPS
• cost: $24.18
• service: UPS Ground Saver
• transit: 5-12 Days

returns cashalif:

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

general cashalif:

• Engines Engine Parts > Valvetrain Components > Camshafts
• condition: Remanufactured