STANDARD MOTOR PRODUCTS AC387 Idle Air Control Valve

( Brand: Standard Motor Products ), ( Part Type: Control Valve Motor ), ( Country Of Origin: United States ), ( Manufacturer Part Number: AC387 )

Review STANDARD MOTOR PRODUCTS Idle Air Control Valve

The Standard Motor AC387 Idle Air Control Valve is a crucial component in the fuel delivery system of various engines, particularly those found in automobiles and industrial equipment. This valve regulates the amount of air that enters the engine during idle operation, ensuring optimal engine performance and fuel efficiency.

The AC387 Idle Air Control Valve is designed to be robust and durable, with a solid construction that can withstand the rigors of continuous use. It features a compact, yet efficient design, with a diameter of approximately 1.5 inches and a length of around 2 inches. The valve body is typically made of a high-strength material such as cast iron, while the internal components are crafted from hardy metals like steel.

This valve operates using a vacuum-actuated mechanism. During idle operation, engine vacuum draws the valve plunger down, opening the valve and allowing air to flow into the engine. The valve is equipped with a diaphragm that seals the valve against engine compression, ensuring proper idle control. The valve also includes a provision for adjusting the idle air flow, which can be accomplished through the use of a screw or adjusting nut located on the valve body.

The AC387 Idle Air Control Valve is compatible with a wide range of engines that utilize the AC Delco, Delco-Remy, or General Motors part numbering systems. It is essential to note that this valve may have various modifications depending on the specific engine application, so it is crucial to verify the compatibility of the part before purchasing.

Installing the AC387 Idle Air Control Valve is a relatively straightforward process. The valve is typically connected to the intake manifold or throttle body via a hose or elbow fitting. The installation process may involve the removal of various engine components, such as the intake manifold gasket or air intake hose, to gain access to the valve location. It is recommended that this installation be performed by a qualified mechanic or experienced DIY enthusiast.

In summary, the Standard Motor AC387 Idle Air Control Valve is an essential component in the fuel delivery system of various engines, designed to regulate idle air flow for optimal engine performance and fuel efficiency. It features a robust and durable construction, compact design, and vacuum-actuated mechanism, making it an indispensable addition to any engine application.

1. Enhanced Idle Stability: A faulty IACV can lead to erratic engine idle, causing vibrations and roughness. Replacing it with a new one will provide improved idle stability, resulting in a smoother driving experience.

2. Better Fuel Economy: A well-functioning IACV contributes to efficient fuel consumption by maintaining a consistent engine idle speed. This can lead to savings on fuel costs over time.

3. Reduced Emissions: The IACV plays a crucial role in ensuring proper engine operation. A malfunctioning IACV can lead to increased engine idling RPMs, which results in higher emissions. By replacing a faulty IACV, you can help reduce your vehicle's carbon footprint.

4. Preventing Further Damage: Neglecting a faulty IACV can lead to more significant engine problems, such as damage to the catalytic converter or oxygen sensors. Replacing the IACV early can save you from costly repairs down the line.

1. Cost: A new Motor AC387 IACV can be relatively expensive, especially when compared to the cost of labor for its installation. The overall cost will depend on the make and model of your vehicle.

2. DIY Installation Complexity: Installing an IACV is not a trivial task, even for experienced DIYers. It requires a good understanding of engine systems and the proper tools. Attempting an installation without the necessary expertise can lead to further complications and potentially void your vehicle's warranty.

3. Availability: Finding a new Motor AC387 IACV can be challenging, as they are not always readily available at local auto parts stores. You may need to order one online, which can lead to additional waiting time.

In conclusion, purchasing a new Motor AC387 Idle Air Control Valve can yield significant benefits, including improved engine performance, better fuel economy, reduced emissions, and preventing further damage. However, the cost, complexity of installation, and availability are important factors to consider before making a purchase. If you have the expertise and resources to install the valve yourself, or if you're willing to pay for the convenience of having a professional do it, then the benefits may outweigh the drawbacks. Ultimately, the decision depends on your individual circumstances and priorities.

part # ac387 prices

• $474.04-$664.57

specifications injectiopug:

• brand: Standard Motor Products
• part type: Control Valve Motor
• country of origin: United States
• manufacturer part number: AC387

offer injectiopug:

• sold: 0
• availability: In Stock
• quantity: 4
• started: June 18, 2026
• options: Ship-to-home

seller injectiopug:

• # reviews: 18005
• rating: 99.8%

returns injectiopug:

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

shipping injectiopug:

• class: Expedited
• type: Fixed
• cost: $0.00
• service: USPS Priority Mail
• carrier: USPS
• transit: 5-11 Days

general injectiopug:

• Air Fuel Delivery > Fuel Injection Parts > Additional Fuel Injection Parts
• condition: New

payments injectiopug:

• credit card: Visa
• wallet: Google-pay
• other

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