HUMMER 12575121 Intake Manifold Gas 3.7

( Fitment Type: Direct Replacement ), ( Mounting Hardware Included: No ), ( Manufacturer Warranty: 30 Days ), ( Type: Intake Manifold ), ( Manufacturer Part Number: 12575121 ), ( Year: 2008 ), ( Engine Size: 3.7 ), ( Valvetrain Iteration: Dohc ), ( Transmission Type: Automatic ), ( Location Id: Gxz404 ), ( Vehicle Id: 16302 )

Review HUMMER Intake Manifold 3.7 Gas fits H3 2006–2010

The Hummer H3 06-10 3.7L Gas Intake Manifold, part number 12575121, is an essential component of the engine's air intake system. This intake manifold is specifically designed for use in Hummer H3 vehicles produced between 2006 and 2010 that run on gasoline.

The intake manifold is responsible for distributing the air and fuel mixture from the throttle body to the engine's cylinders. In this application, it features a robust design with a durable cast aluminum construction. This material not only ensures strength and longevity but also helps keep the weight of the component to a minimum for improved vehicle performance.

The intake manifold comes with five ports, each designed to accommodate an injection system. These ports are evenly spaced and angled to optimize airflow and ensure an even distribution of the air-fuel mixture to each cylinder. The intake manifold also features a smooth, polished finish that not only looks great but also reduces turbulence and friction for enhanced engine efficiency.

Additionally, the Hummer H3 06-10 3.7L Gas Intake Manifold, part number 12575121, is designed to be a direct replacement for the original equipment intake manifold. This means that it is engineered to fit perfectly and require no modifications for installation. However, it is essential to ensure that all gaskets and seals are in good condition before installation to prevent leaks and ensure proper engine performance.

In summary, the Hummer H3 06-10 3.7L Gas Intake Manifold, part number 12575121, is a high-quality, durable component that is essential for the proper functioning of the engine in your Hummer H3. Its robust design, optimized airflow, and direct replacement capabilities make it an excellent choice for anyone looking to maintain or upgrade their vehicle's engine performance.

Pros and Cons of Buying a Hummer H3 06-10 3.7L Intake Manifold (Part Number: 12575121)

The intake manifold is a crucial component of your engine's fuel delivery system. Replacing a faulty or worn-out intake manifold can improve engine performance and fuel efficiency. In this context, we will discuss the pros and cons of purchasing a Hummer H3 06-10 3.7L Intake Manifold (Part Number: 12575121).

1. Enhanced Engine Performance: A new intake manifold can restore engine power and torque, resulting in smoother acceleration and better overall performance.

2. Improved Fuel Efficiency: A well-functioning intake manifold ensures optimal fuel delivery, which can lead to improved fuel efficiency.

3. Better Idle Stability: A new intake manifold can help stabilize engine idle, reducing the likelihood of stalling or rough idling.

4. Increased Longevity: Replacing a worn-out intake manifold with a new one can help prevent future engine issues and increase the overall lifespan of the engine.

5. OEM Quality: The Hummer H3 06-10 3.7L Intake Manifold (Part Number: 12575121) is an original equipment manufacturer (OEM) part, ensuring a perfect fit and reliable performance.

1. Cost: Replacing an intake manifold can be an expensive repair, especially when considering labor costs.

2. Time-Consuming: Installing a new intake manifold can be a time-consuming process, often requiring specialized tools and knowledge.

3. Potential for Additional Repairs: Replacing an intake manifold might reveal other engine issues that require additional repairs, increasing the overall cost of the repair.

The decision to purchase a Hummer H3 06-10 3.7L Intake Manifold (Part Number: 12575121) depends on various factors, including the current condition of your engine and your budget. If you're experiencing performance issues or notice signs of a faulty intake manifold, such as rough idling or stalling, replacing the intake manifold might be a worthwhile investment. However, if your engine is running smoothly and you're looking to save costs, it may be best to hold off on this repair.

If you've determined that replacing the intake manifold is the best course of action for your Hummer H3, consider purchasing the OEM part (Part Number: 12575121) for optimal fit and reliability. Look for reputable auto parts suppliers or dealerships to ensure you're getting a genuine part. Additionally, compare prices from multiple sources to get the best deal. Finally, consider having the installation done by a professional mechanic to ensure proper installation and minimize the risk of potential complications.

Details:

GMC Canyon 2004 - 2006 3.5L. GMC Canyon 2007 2012 3.7L. Hummer H3 2007 2010 3.7L. Hummer H3 2006 - 2006 3.5L.

Please replace such items as required for proper installation.

part #: 12575121 prices

• $123.50-$125.00

specifications inputmanifolds:

• for models: H3
• for makes: Hummer
• for years: 2006-2010
• fitment type: Direct Replacement
• mounting hardware included: No
• manufacturer warranty: 30 Days
• type: Intake Manifold
• manufacturer part number: 12575121
• year: 2008
• engine size: 3.7
• valvetrain iteration: Dohc
• transmission type: Automatic
• location id: Gxz404
• vehicle id: 16302

payments inputmanifolds:

• credit card: Visa
• wallet: Paypal
• other

offer inputmanifolds:

• options: Ship-to-home
• quantity: 1
• sold: 0
• started: August 20, 2025
• availability: In Stock

returns inputmanifolds:

• paid by: Buyer
• time: 60 Days
• policy: Returns Accepted

general inputmanifolds:

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

shipping inputmanifolds:

• class: Standard
• cost: $0.00
• transit: 2-6 Days
• type: Fixed
• service: Standard

seller inputmanifolds:

• # reviews: 60208
• rating: 99.3%
• city: Denver, Colorado

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