FILKO 31-2 Carburetor Choke Thermostat Gm 3927772 1-BBL

( Brand: Filko ), ( Part Type: Carburetor Thermostat ), ( Manufacturer Part Number: 31-2 ), ( Ipn: 3927772 )

Review FILKO Carburetor Choke Thermostat Rochester Gm fits 1966-71

The Filko Part No. 3927772 is a carburetor choke thermostat specifically designed for Rochester 1-bbl carburetors used in select General Motors vehicles from 1966 to 1971. This thermostat plays a crucial role in ensuring efficient engine operation, particularly during cold starts.

The thermostat is constructed primarily from brass, a material known for its durability and resistance to corrosion. Its design includes a thermostat housing with threads that match the standard 31-2 thread size found in these applications, enabling easy installation. The thermostat element is a bimetallic disc, which responds to temperature changes by opening and closing the choke circuit as necessary.

During engine startup in cold conditions, the thermostat remains closed, allowing the engine coolant to circulate through the choke housing and heat up the thermostat element. Once the engine reaches a specific temperature, usually around 70-80 degrees Fahrenheit, the thermostat opens, disconnecting the choke circuit, and allowing the engine to run without the enriched fuel mixture provided by the choke.

The Filko 3927772 carburetor choke thermostat is an essential component for maintaining proper engine performance and fuel efficiency, especially in older vehicles. It is a direct replacement for the original equipment thermostat and is designed to fit and function perfectly in the specified applications.

This thermostat is also an excellent choice for those restoring or rebuilding their classic GM cars, as it ensures the engine starts smoothly and runs efficiently, just like it did when the car was new. With its high-quality materials and precise temperature control, the Filko 3927772 carburetor choke thermostat offers excellent value and reliability for automotive enthusiasts.

The Filko 3927772 31-2 carburetor choke thermostat is designed for use with Rochester 1-bbl carburetors on 1966-1971 GM vehicles. Here are some potential pros and cons of purchasing this part:

1. Designed specifically for Rochester 1-bbl carburetors on GM vehicles, ensuring a precise fit.

2. Helps improve cold weather starting by controlling the choke temperature.

3. Made from high-quality materials for durability and reliability.

4. Easy to install, typically requiring only basic hand tools.

1. Some customers have reported receiving defective parts or incorrect parts. Be sure to double-check that you are ordering the correct part number for your specific vehicle.

2. May not be covered by a warranty, so be sure to check with the seller before making a purchase.

3. Can be more expensive than some aftermarket alternatives.

The Filko 3927772 31-2 carburetor choke thermostat can be a valuable addition to your vehicle, particularly if you live in a cold climate or have trouble starting your engine in cold weather. However, it is important to ensure that you are purchasing the correct part for your specific vehicle and that it is covered by a warranty. While it may be more expensive than some aftermarket alternatives, the precision fit and reliability offered by this OEM part can make it a worthwhile investment for those who prioritize authenticity and performance.

If you are in need of a new carburetor choke thermostat for your Rochester 1-bbl carbureted GM vehicle, the Filko 3927772 31-2 is a solid choice. Be sure to double-check that you are ordering the correct part number for your specific vehicle and that it is covered by a warranty before making a purchase. If you are looking for a more cost-effective alternative, consider researching aftermarket options from reputable manufacturers to ensure that you are getting a quality part that will fit your vehicle and meet your performance needs.

part # 312 prices

• $9.99-$27.00

specifications carbcaddie:

• for makes: Rochester
• for years: 1966-71
• brand: Filko
• part type: Carburetor Thermostat
• manufacturer part number: 31-2
• interchange part number: 3927772

seller carbcaddie:

• # reviews: 283941
• rating: 99.8%

offer carbcaddie:

• quantity: 1
• started: April 30, 2026
• options: Ship-to-home
• availability: In Stock
• sold: 0

payments carbcaddie:

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

shipping carbcaddie:

• class: Standard
• transit: 4-9 Days
• carrier: USPS
• type: Fixed
• service: USPS Ground Advantage
• cost: $0.00

returns carbcaddie:

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

general carbcaddie:

• Car Truck Parts Accessories > Air Fuel Delivery > Carburetor Parts
• condition: New other see details

Filko 31-2 Is Similar To:

• Filko 30-331 Choke Pull-off Standard Cpa322 (35.6% similar) $31.50–$47.79. (March 14th, 2025)
• Filko 30-322 Carburetor Choke Pull Off For R-2 (49.6% similar) $12.15–$14.99. (March 14th, 2025)
• Filko Cpa-131 30-68 Choke Pull Off Fits 80 Camaro Malibu 79-80 Regal Smp Cpa131 (26% similar) $5.00–$9.00. (April 7th, 2025)
• Filko 31-456 / Cv238 Choke Thermostat (50% similar) $10.80. (April 14th, 2025)
• Filko 30-188 Carburetor Choke Pull-off For 1977-80 Cadillac Rochester 4bbl (55% similar) $17.95–$35.95. (April 16th, 2025)
• Filko 30-339 Choke Pull Off For S10 Blazer Pickup Gmc S15 Jimmy Jeep Cherokee Wagoneer (29.8% similar) $19.97. (April 19th, 2025)
• Standard Cv-230 Cv 230 N.o.s. Carburetor Choke Thermostat Hygrade Kem Filko Niehoff (44.3% similar) $13.00–$83.00. (April 19th, 2025)
• Standard Cv-348 Cv 348 N.o.s. Carburetor Choke Thermostat Hygrade Kem Filko Niehoff (44.3% similar) $33.01. (April 19th, 2025)
• Standard Cv-222 Cv 222 N.o.s. Carburetor Choke Thermostat Hygrade Kem Filko Niehoff (44.3% similar) $8.79–$18.00. (April 19th, 2025)
• Standard Cv-124 Cv 124 N.o.s. Carburetor Choke Thermostat Kem Filko Niehoff (45.3% similar) $15.95–$35.95. (April 21st, 2025)
• Standard Cv-164 Cv164 N.o.s. Carburetor Choke Thermostat Kem Filko Niehoff (44.3% similar) $19.99. (April 21st, 2025)