1. USED Car/Truck Carburetors Items
  2. sku: 8350863130138761
  3. IMPCO AV1-16-2

IMPCO AV1-16-2 Air Gas Valve Silicone Diaphragm Carb C425M-2

fits model: 425.

Av1-16-2 Impco Air Gas Valve Silicone Diaphragm For 425 Series Carb C425m-2

( Brand: Impco ), ( Manufacturer Part Number: AV1-16-2 ), ( Type: Silicone Diaphragm Air Gas Valve Assembly ), ( Material: Silicone ), ( Country/region Of Manufacture: United States )

Review IMPCO Air Gas Valve Silicone Diaphragm For Series Carb fits 425

The IMPCO AV1-16-2 air gas valve is an essential component in the operation of IMPCO C425M-2 carburetors for natural gas or propane fuels. This valve is specifically designed with a silicone diaphragm, which provides superior flexibility and durability compared to other materials.

The AV1-16-2 valve features a compact, yet robust construction. Its body is made of high-quality brass, ensuring excellent resistance to corrosion and wear. The valve's inlet and outlet ports are threaded, allowing for easy installation and connection to the carburetor's fuel and air lines.

The heart of this valve is its silicone diaphragm, which separates the fuel and air sides. This diaphragm is designed to maintain a seal under varying fuel pressures, ensuring efficient and smooth operation of the carburetor. The silicone material also offers excellent resistance to fuel and gas, ensuring a long service life.

The valve is designed to operate in the harsh conditions typically found in industrial and automotive applications. Its robust construction, combined with the flexibility of the silicone diaphragm, allows it to withstand the demands of high-performance engines while maintaining precision fuel metering and air/fuel mixture control.

The IMPCO AV1-16-2 air gas valve is an essential upgrade for any C425M-2 carburetor used in natural gas or propane applications. Its superior design and materials offer improved reliability, longevity, and performance compared to OEM alternatives. This valve is a must-have for operators seeking optimal engine performance and reduced downtime.

The IMPCO AV1-16-2 air gas valve with a silicone diaphragm is a crucial component for the proper functioning of a 425 carburetor model C425M-2. This valve allows the controlled introduction of air into the fuel mixture for optimal combustion. Let's explore some pros and cons of purchasing this specific valve.

Pros:

1. High-quality material: The silicone diaphragm is a durable and reliable material for this application. Silicone is known for its flexibility, strength, and resistance to various environmental conditions, making it an excellent choice for this part.

2. Improved performance: A faulty or worn-out air gas valve can negatively impact engine performance. Replacing it with a new one, such as the IMPCO AV1-16-2, can help restore optimal engine performance.

3. Easy installation: The air gas valve is a relatively simple component to install, making it an accessible DIY project for those with some mechanical aptitude.

4. OEM compatibility: This valve is designed to be a direct replacement for the original IMPCO part, ensuring a perfect fit and function.

Cons:

1. Potential for leaks: While silicone is a strong material, there is still a risk of leaks if the valve is not installed correctly or if it becomes damaged. Proper installation and care are essential to prevent this issue.

2. Cost: Compared to some aftermarket alternatives, the IMPCO OEM valve may be more expensive. However, the benefits of using a high-quality, OEM part often outweigh the cost difference.

3. Availability: Depending on your location and the availability of parts suppliers, you may have to search extensively to find the IMPCO AV1-16-2 air gas valve. It might be worth checking with multiple sources or online retailers to ensure you get the best deal.

In conclusion, the IMPCO AV1-16-2 air gas valve with a silicone diaphragm is a worthwhile investment for those seeking optimal engine performance and reliability. Its high-quality material, improved performance, and easy installation make it an excellent choice. While there are potential cons, such as the cost and risk of leaks, the benefits generally outweigh these concerns.

Recommendation: If you require a new air gas valve for your 425 carburetor C425M-2, and you want to ensure the best possible performance and compatibility, consider purchasing the IMPCO OEM part, the AV1-16-2 with a silicone diaphragm. While it may come with a higher cost, the peace of mind and improved engine performance it offers are well worth the investment.

Details:

60-Day Guarantee. This is fully guaranteed to be functional and in new condition as pictured upon receipt. Impco AV1-16-2 Air Gas Valve Assembly, Silicone Diaphragm 425 Series Carb, C425M-2 Rebuild or Repair, This is a brand new silicone diaphragm air gas valve assembly. See chart below for DOA warranty duet damage in shipping.

These will come in the original retail box as shown.

part #: av1162 prices

  • $150.00-$259.99

specifications carbcoon:

  • for models: 425
  • brand: Impco
  • mpn: Av1-16-2
  • type: Silicone Diaphragm Air Gas Valve Assembly
  • material: Silicone
  • country/region of manufacture: United States

payments carbcoon:

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

offer carbcoon:

  • best offers: True
  • quantity: 6
  • started: October 1, 2025
  • sold: 0
  • options: Ship-to-home
  • availability: In Stock

general carbcoon:

  • Car Truck Parts Accessories > Air Fuel Delivery > Carburetors
  • condition: New

returns carbcoon:

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

shipping carbcoon:

  • class: Standard, Expedited
  • carrier: USPS, FedEx, UPS
  • service: USPS Ground Advantage, FedEx Ground / FedEx Home Delivery, USPS Priority Mail, UPS Ground
  • cost: $14.10
  • transit: 5-10 Days
  • type: Calculated

seller carbcoon:

  • rating: 100.0%
  • # reviews: 11398
  • city: Bixby, Oklahoma
for models: 425, type: silicone diaphragm air gas valve assembly, country/region of manufacture: united states,
category: auto parts > car truck parts accessories > air fuel delivery > carburetors, material: silicone, sku: 8350863130138761,

Impco AV1-16-2 Is Similar To:

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2 offers $150.00–$259.99 USD
  • Offer #1: $259.99 price + $0.00 shipping estimate = $259.99* total. INCLUDES: AIR GAS VALVE ASSEMBLY AND AD1-28-1 IDLE DIAPHRAGM.FREE SHIPPING
  • Offer #2: $150.00 price + $17.41 shipping estimate = $167.41* total.+$17.41 shipping

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