GM 12591191 Actuator Supercharger Bypass Valve Sts Xlr 4.4

( Brand: Gm ), ( Manufacturer Part Number: 12591191 ), ( Oe Spec Or Performance/custom: Oe Spec ), ( Type: Supercharger ), ( Manufacturer Warranty: No Warranty ), ( Color: Black ), ( Items Included: Valve ), ( Features: Individual ), ( Drive Type: Belt Driven ), ( Country/region Of Manufacture: United States ), ( Vintage Part: No )

Review GM Actuator Asm supercharger Bypass Valve 4.4 Liter Sts v Xlr fits 2006–2009

The GM 12591191 ASM Supercharger Bypass Valve is a crucial component for the 4.4L V8 engine found in select 2006-2009 STS-V models. This bypass valve is designed to regulate the pressure in the supercharger system, ensuring optimal engine performance and longevity.

This valve is an essential part of the supercharger system's pressure control mechanism. It functions by allowing excess boost pressure to bypass the supercharger when engine RPMs reach a certain level. This feature prevents the engine from experiencing excessive boost pressure, which could potentially lead to engine damage.

The GM 12591191 ASM Supercharger Bypass Valve is meticulously crafted from high-quality materials, ensuring superior durability and reliability. It features a robust construction with a brass body and a hard-anodized aluminum housing. The valve's components are carefully machined to ensure a precise fit and smooth operation.

The bypass valve's operation is controlled by a vacuum-operated diaphragm. When engine vacuum is present, the diaphragm pushes against a valve seat, allowing boost pressure to bypass the supercharger. Conversely, when engine vacuum is absent, the valve seat seals, and boost pressure is directed to the supercharger, increasing engine power.

Installation of the GM 12591191 ASM Supercharger Bypass Valve is a straightforward process. It simply replaces the existing bypass valve in the supercharger system. The valve comes complete with all necessary hardware for installation.

In conclusion, the GM 12591191 ASM Supercharger Bypass Valve is an essential component for maintaining the performance and longevity of the supercharged 4.4L V8 engine in select 2006-2009 STS-V models. Its robust construction, precise operation, and easy installation make it an indispensable addition to any vehicle owner seeking maximum engine performance and reliability.

Pros and Cons of buying a GM 12591191 ASM-Supercharger Bypass Valve for 4.4L Sts-V XLR (2006-2009)

The GM 12591191 ASM-Supercharger Bypass Valve is an essential component for the 4.4L Sts-V XLR (2006-2009) engine. This valve is designed to improve the performance and efficiency of the supercharger system. In this article, we will discuss the pros and cons of buying this part to help you make an informed decision.

1. Improved Performance: The bypass valve helps regulate the boost pressure, ensuring optimal engine performance. This can result in better acceleration, increased power, and improved overall driving experience.

2. Enhanced Fuel Economy: By efficiently managing the boost pressure, the bypass valve can help improve fuel economy. This can result in cost savings over time.

3. Durability: The GM 12591191 ASM-Supercharger Bypass Valve is designed to be durable and long-lasting, ensuring that it provides reliable performance for an extended period.

4. OEM Quality: This part is an original equipment manufacturer (OEM) replacement, meaning it is made to the same specifications as the original part. This ensures a perfect fit and optimal performance.

1. Cost: The GM 12591191 ASM-Supercharger Bypass Valve can be expensive, especially when compared to aftermarket alternatives. This may be a consideration for those on a tight budget.

2. Installation Complexity: Installing the bypass valve can be a complex process, requiring special tools and knowledge. This may result in additional labor costs or the need to hire a professional.

3. Potential for Leaks: The bypass valve is a critical component of the supercharger system, and a leak can cause significant damage. Proper installation and regular maintenance are essential to prevent leaks.

The GM 12591191 ASM-Supercharger Bypass Valve offers several benefits, including improved performance, enhanced fuel economy, durability, and OEM quality. However, it also comes with some drawbacks, such as cost, installation complexity, and potential for leaks. Ultimately, the decision to buy this part depends on your budget, installation capabilities, and desired performance improvements. If you are looking for optimal performance and reliability, the OEM bypass valve is an excellent choice. However, if cost is a concern, you may want to consider aftermarket alternatives.

If you are looking for optimal performance and reliability, we recommend purchasing the GM 12591191 ASM-Supercharger Bypass Valve as an OEM replacement. However, if cost is a concern, we suggest exploring aftermarket alternatives and carefully considering the installation requirements before making a decision. Regardless of your choice, proper installation and regular maintenance are essential to ensure optimal performance and prevent potential leaks.

Details:

12591191: Actuator Asm-Supercharge Bypass Valve. For: DX 4.4D LC3 2007 2009 2007 - 2009. Required: 01 For:4.4D LC3 2006 - 2006 - 2006. For: Y 4.4D LC3 2006 - 2009 2006 - 2009.

part #: 12591191 prices

• $143.13-$242.81

specifications reppchargers:

• for years: 2006-2009
• brand: Gm
• mpn: 12591191
• oe spec or performance/custom: Oe Spec
• type: Supercharger
• manufacturer warranty: No Warranty
• color: Black
• items included: Valve
• features: Individual
• drive type: Belt Driven
• country/region of manufacture: United States
• vintage part: No

payments reppchargers:

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

seller reppchargers:

• rating: 99.7%
• # reviews: 19791
• city: White Lake, Michigan

shipping reppchargers:

• transit: 4-9 Days
• carrier: USPS, FedEx, UPS
• class: Standard, Expedited, Economy
• cost: $9.00
• service: USPS Ground Advantage, USPS Priority Mail, FedEx Ground Economy, UPS Ground Saver
• type: Calculated

returns reppchargers:

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

offer reppchargers:

• best offers: True
• availability: In Stock
• options: Ship-to-home
• started: May 29, 2025
• sold: 0

general reppchargers:

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

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