GM 12596574 Intake Manifold Ls Vortec 329-1889 4.8L 5.3L 6.0L

( Brand: Gm ), ( Oe Spec Or Performance/custom: Oe Spec ), ( Fitment Type: Direct Replacement ), ( Manufacturer Part Number: 12596574 ), ( Material: Plastic ), ( Placement On Vehicle: Front ), ( Fuel Type: Gasoline ), ( Type: Small Block Chevy ), ( Ipn: 329-1889 ), ( Oe/oem Part Number: 25328620 ), ( Engine Size: 4.8l 5.3l 6.0l ), ( Features: Bare )

Review GM Intake Manifold 4.8l 5.3l 6.0l Ls Vortec fits SILVERADO SIERRA TAHOE YUKON 1999–2006

GM 12596574 Intake Manifold - Compatible with 4.8L, 5.3L, 6.0L LS Engines in Silverado, Sierra, Tahoe, and Yukon (Vortec)

The GM 12596574 Intake Manifold is an essential component of the fuel delivery system for specific LS engines found in various Chevrolet and GMC vehicles, including Silverado, Sierra, Tahoe, and Yukon models, from the year 1999 to 2006. This intake manifold, also known as the Vortec intake, is designed for engines with a displacement of 4.8 liters, 5.3 liters, or 6.0 liters, and is a direct replacement for the original equipment manufactured (OEM) part.

The intake manifold plays a crucial role in the combustion process by distributing fuel from the throttle body to each cylinder's intake port. Proper air-fuel mixture is essential for efficient engine performance and reliable operation. This GM intake manifold is meticulously engineered using advanced technologies and materials to ensure optimal airflow and fuel distribution, contributing to enhanced engine power, improved fuel economy, and reduced emissions.

1. Precise casting: The intake manifold is cast from high-quality aluminum, ensuring a strong and durable construction that can withstand the rigors of daily driving.

2. Optimized airflow: The intake manifold's design facilitates smooth and efficient airflow, allowing the engine to breathe more easily and perform at its best.

3. Sealed gaskets: The intake manifold comes with sealed gaskets that provide a reliable seal between the manifold and the cylinder head, ensuring a leak-free installation and proper engine compression.

4. Easy installation: This intake manifold is designed to be a direct replacement for the original part, making the installation process straightforward and hassle-free.

5. OE-quality: The GM 12596574 Intake Manifold is engineered to meet or exceed the original equipment's specifications, ensuring a perfect fit and reliable performance.

By installing this GM 12596574 Intake Manifold in your 4.8L, 5.3L, or 6.0L LS engine-powered Silverado, Sierra, Tahoe, or Yukon vehicle, you can enjoy improved engine performance, enhanced fuel economy, and reduced emissions. This replacement intake manifold is a worthwhile investment for any vehicle owner seeking to maintain the optimal operation of their engine and prolong the life of their vehicle.

Pros and Cons of Buying a GM Intake Manifold (12596574) for 4.8L, 5.3L, 6.0L LS Engines in Silverado, Sierra, Tahoe, and Yukon

The GM intake manifold (12596574) is a part commonly used in various vehicles with the Vortec 4.8L, 5.3L, and 6.0L LS engines, including Silverado, Sierra, Tahoe, and Yukon models. Replacing this component can improve engine performance and fuel efficiency. In this article, we will discuss the pros and cons of buying this intake manifold.

1. Improved Engine Performance: A new intake manifold can lead to better engine performance, as it ensures proper air-fuel mixture delivery to the engine, improving combustion efficiency.

2. Increased Power: Upgrading to a high-flow intake manifold can lead to increased horsepower and torque, making the vehicle more responsive and powerful.

3. Better Fuel Economy: A well-designed intake manifold can help the engine run more efficiently, resulting in better fuel economy.

4. Durability: The OEM (Original Equipment Manufacturer) intake manifold is made of high-quality materials and is designed to last for a long time.

1. Cost: Purchasing a new GM intake manifold (12596574) can be expensive, especially when compared to aftermarket options.

2. Installation Complexity: Installing an intake manifold can be a complex process, requiring specialized tools and knowledge.

3. Potential for Engine Damage: Improper installation or using a low-quality intake manifold can lead to engine damage.

4. Availability: This intake manifold may not be easily available in local auto parts stores, requiring an online purchase.

The decision to buy a new GM intake manifold (12596574) for 4.8L, 5.3L, 6.0L LS engines in Silverado, Sierra, Tahoe, and Yukon depends on various factors, including the vehicle's condition, desired performance improvements, and budget. While the potential benefits, such as improved engine performance, increased power, and better fuel economy, may outweigh the cons, it is essential to consider the cost, installation complexity, potential engine damage risks, and availability before making a purchase.

If you are experiencing performance issues with your GM vehicle and believe that a new intake manifold could improve its performance, it's recommended to consult with a professional mechanic or trusted auto parts supplier for advice. They can help you assess the situation and determine if purchasing a new intake manifold is the best course of action, considering the pros and cons discussed in this article.

Details:

Comes with all sensors shown in the photos. Came off my 5.3 L Vortec LM7 engine. Great condition, working and driving before removing, no issues. Swapped it into a BMW and swap the intake manifold for an LS6.

part #: 12596574 prices

• $179.99-$277.09

specifications inputmanifolds:

• for models: Silverado, Sierra, Tahoe, Yukon
• for years: 1999-2006
• brand: Gm
• oe spec or performance/custom: Oe Spec
• fitment type: Direct Replacement
• manufacturer part number: 12596574
• material: Plastic
• placement on vehicle: Front
• fuel type: Gasoline
• type: Small Block Chevy
• interchange part number: 329-1889
• oe/oem part number: 25328620
• engine size: 4.8l 5.3l 6.0l
• features: Bare

offer inputmanifolds:

• availability: In Stock
• sold: 0
• options: Ship-to-home
• started: June 15, 2025
• quantity: 1
• best offers: True

payments inputmanifolds:

• wallet: Paypal
• other
• credit card: Visa

general inputmanifolds:

• condition: Used
• Car Truck Parts Accessories > Air Fuel Delivery > Intake Manifolds

shipping inputmanifolds:

• service: USPS Priority Mail
• cost: $111.56
• transit: 5-11 Days
• carrier: USPS
• class: Expedited
• type: Calculated

returns inputmanifolds:

• policy: No Returns

seller inputmanifolds:

• rating: 100.0%
• city: Castle Rock, Colorado
• # reviews: 25

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