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  3. ACDELCO 12641590

ACDELCO 12641590 Fuel Injector Vacuum Switch

12641590 Acdelco Fuel Injector Vacuum Switch

( Brand: Acdelco ), ( Part Type: Fuel Vacuum Switch Injector ), ( Manufacturer Warranty: 1 Year ), ( Fitment Type: Direct Replacement ), ( Manufacturer Part Number: 12641590 ), ( Genuine Oem: Yes ), ( Replaces Part Number: 12636310, 12640983 )

Review ACDELCO Fuel Injector Vacuum Switch

The ACDelco 12641590 Fuel Injector Vacuum Switch is a crucial component in the fuel delivery system of certain vehicles, designed to ensure optimal engine performance. This switch is engineered to monitor engine vacuum levels and control the fuel injectors accordingly.

The compact design of this switch measures approximately 2.1 inches in length, 1.4 inches in width, and 1.2 inches in height. It is constructed from high-quality materials, including a robust housing that can withstand the rigors of automotive use. The switch terminals are securely fastened to the housing, ensuring a reliable electrical connection.

The ACDelco 12641590 Fuel Injector Vacuum Switch features a vacuum diaphragm that responds to changes in engine vacuum levels. When engine vacuum is present, the diaphragm moves, closing the switch contacts and allowing fuel to be injected into the engine. When engine vacuum is absent, the diaphragm moves in the opposite direction, opening the switch contacts and halting fuel injection.

This switch is essential for vehicles that use fuel injectors and rely on engine vacuum to control their operation. It is a direct replacement for the original equipment manufacturer (OEM) part and is designed to meet or exceed OEM specifications. The ACDelco 12641590 Fuel Injector Vacuum Switch is backed by a 12-month limited warranty, ensuring customer satisfaction and peace of mind.

Installing this switch is a straightforward process, and it is compatible with various makes and models of vehicles. It is recommended to consult the vehicle service manual or a qualified technician for installation instructions. By replacing a faulty or worn-out fuel injector vacuum switch with a new ACDelco part, vehicle owners can restore proper engine performance and improve fuel efficiency.

The Acdelco 12641590 fuel injector vacuum switch is a crucial component in the fuel system of certain vehicles, particularly those using carbureted engines. Here are the pros and cons of buying this part:

Pros:

1. OEM Quality: Acdelco is a well-known brand that produces original equipment manufacturer (OEM) parts. Buying this switch from Acdelco ensures that you are getting a part that is built to the same specifications as the original equipment that came with your vehicle.

2. Improved Engine Performance: A malfunctioning fuel injector vacuum switch can cause a variety of issues, including poor fuel economy, rough idling, and stalling. Replacing the faulty switch with a new one can help improve engine performance and fuel efficiency.

3. Reliable: Acdelco parts are known for their reliability and durability. This switch is no exception, and it is designed to last for a long time.

4. Easy Installation: The fuel injector vacuum switch is a relatively simple component to install. Most mechanics and DIY enthusiasts can complete the installation process in under an hour.

Cons:

1. Cost: The Acdelco 12641590 fuel injector vacuum switch can be more expensive than aftermarket alternatives. However, the higher price tag comes with the assurance of OEM quality and durability.

2. Availability: This switch may not be readily available at local auto parts stores. You may need to order it online or from a specialty parts supplier.

3. Not Applicable to All Vehicles: This switch is only applicable to vehicles that use carbureted engines and require a vacuum switch for their fuel injection system.

Conclusion:

The Acdelco 12641590 fuel injector vacuum switch is a high-quality part that can help improve engine performance and fuel efficiency. While it may be more expensive than aftermarket alternatives, the OEM quality and reliability make it a worthwhile investment for those who require a replacement for their vehicle's faulty fuel injector vacuum switch. If you are unsure about the applicability of this switch to your vehicle, it is recommended that you consult with a qualified mechanic or the vehicle's owner's manual.

Recommendation:

If you are in need of a new fuel injector vacuum switch for your vehicle, the Acdelco 12641590 is a solid choice. Its OEM quality, reliability, and ease of installation make it a worthwhile investment for those who prioritize performance and durability. However, if cost is a concern, you may want to consider aftermarket alternatives. Ultimately, the decision depends on your specific needs and priorities.

part # 12641590 prices

  • $25.00-$63.01

specifications injectiopug:

  • brand: Acdelco
  • part type: Fuel Vacuum Switch Injector
  • manufacturer warranty: 1 Year
  • fitment type: Direct Replacement
  • manufacturer part number: 12641590
  • genuine oem: Yes
  • replaces part number: 12636310, 12640983

returns injectiopug:

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

payments injectiopug:

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

offer injectiopug:

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

seller injectiopug:

  • # reviews: 3517
  • rating: 99.5%

shipping injectiopug:

  • class: Standard
  • cost: $8.05
  • transit: 3-9 Days
  • service: USPS Ground Advantage, UPS Ground
  • carrier: USPS, UPS
  • type: Calculated

general injectiopug:

  • condition: New
  • Air Fuel Delivery > Fuel Injection Parts > Additional Fuel Injection Parts
part type: fuel vacuum switch injector, manufacturer warranty: 1 year, fitment type: direct replacement, genuine oem: yes, replaces part number: 12636310, 12640983,
category: auto parts > air fuel delivery > fuel injection parts > additional fuel injection parts, sku: 7491255099505781,

Acdelco 12641590 Is Similar To:

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5 offers $25.00–$63.01 USD
  • Offer #1: $47.70 price + free delivery = $47.70* total. Fix fuel system leaks and crank/no-start issues with the Genuine GM ACDelco / 213-4763 Fuel Vacuum Switch, designed for 2011 2016 Chevrolet Silverado HD and GMC Sierra HD trucks equipped with the 6.6L LML Duramax diesel engine.FREE SHIPPING
  • Offer #2: $63.01 price + free delivery = $63.01* total. PART DETAILS. Part Number.FREE SHIPPING
  • Offer #3: $25.00 price + $6.00 delivery = $31.00* total. WHAT YOU SEE IS WHAT YOU GET.+$6.00 shipping
  • Offer #4: $47.70 price + free delivery = $47.70* total.FREE SHIPPING
  • Offer #5: $39.95 price + $8.75 delivery = $48.70* total. This product replaces part numbers 12636310 and 12640983, making it a reliable choice for your fuel injection system The ACDELCO Fuel Injector Vacuum Switch is a genuine GM product designed for direct replacement in vehicles.+$8.75 shipping