BORGWARNER VC-373 Borg Warner Carburetor Choke

( Brand: Borgwarner ), ( Type: Choke ), ( Oe/oem Part Number: 7042715, 779084 ), ( Manufacturer Part Number: VC-373 )

Review BORGWARNER Borg Warner Buick Chevrolet Gmc Pontiac Carburetor Choke Pull Off

The Borg Warner VC-373 carburetor choke is a crucial component in the starting system of select Buick, Chevrolet, GMC, and Pontiac vehicles produced between the late 1950s and the early 1960s. This choke mechanism is designed to ensure a smooth and efficient starting process, particularly in cold weather conditions.

The VC-373 choke is a vacuum-operated device. It employs a diaphragm assembly, which responds to engine vacuum to control the airflow into the carburetor. During engine cranking, the vacuum created by the engine sucking in air is transmitted to the choke diaphragm, causing it to move inward and restrict the airflow into the carburetor. This enriches the fuel-air mixture, making it easier for the engine to ignite and start.

The choke assembly consists of a vacuum reservoir, a diaphragm, a needle valve, and a choke lever. The vacuum reservoir, which is connected to the intake manifold, creates a vacuum when the engine is running. The diaphragm is situated between the reservoir and the carburetor, and it has a rubbery texture that allows it to flex and move in response to vacuum changes.

The needle valve, located within the carburetor body, is controlled by the diaphragm. When the vacuum is strong enough to move the diaphragm, it pushes on a lever, which in turn presses the needle valve closed. This restricts the airflow and enriches the fuel-air mixture. Once the engine has started, the vacuum decreases, allowing the diaphragm to return to its original position, opening the needle valve and allowing normal airflow.

The Borg Warner VC-373 choke is a vital component for the proper starting of your classic Buick, Chevrolet, GMC, or Pontiac vehicle. If you're experiencing difficulty starting your car or notice that it takes a long time to start, especially in cold weather, it may be a sign that your choke system needs attention. A faulty choke can lead to a multitude of issues, including poor fuel economy, rough idling, and even engine damage. Regular maintenance and replacement of worn-out parts, such as the Borg Warner VC-373 carburetor choke, can help ensure the longevity and performance of your classic vehicle.

Borg Warner VC-373 Carburetor Choke: A Comprehensive Analysis

The Borg Warner VC-373 carburetor choke is a vital component for vehicles that use a carburetor for fuel delivery. The choke helps in providing an enriched fuel-air mixture during engine starting to ensure a smooth and easy start. In this analysis, we will explore the advantages and disadvantages of investing in the Borg Warner VC-373 carburetor choke for Buick, Chevrolet, GMC, and Pontiac vehicles.

1. Easy to Install: The Borg Warner VC-373 carburetor choke is relatively easy to install, making it a popular choice for DIYers and professionals alike. The installation process is straightforward, and the choke comes with clear instructions and all necessary hardware.

2. Ensures Easy Engine Start: The choke's primary function is to provide an enriched fuel-air mixture during engine starting, ensuring a smooth and easy start, especially in cold weather conditions.

3. Durable Construction: The Borg Warner VC-373 carburetor choke is made from high-quality materials, ensuring durability and longevity. The choke's vacuum-operated design adds to its robustness, making it a reliable choice for long-term use.

4. Affordable: Compared to other carburetor chokes in the market, the Borg Warner VC-373 is relatively affordable, making it an accessible option for vehicle owners on a budget.

5. Universal Fitment: The Borg Warner VC-373 carburetor choke is designed to fit various Buick, Chevrolet, GMC, and Pontiac vehicles, making it a versatile choice for car owners.

1. Vacuum-Operated Design: The vacuum-operated design of the Borg Warner VC-373 carburetor choke may not be suitable for vehicles with weak vacuum systems or malfunctioning vacuum advance systems. In such cases, the choke may not function correctly or may require additional assistance to operate.

2. Limited Adjustability: The Borg Warner VC-373 carburetor choke does not offer adjustability for the choke plate's opening time or vacuum advance, which may not cater to the specific needs of some vehicles or driving conditions.

3. May Not Suit Modern Vehicles: The Borg Warner VC-373 carburetor choke is designed for older vehicles that use carburetors for fuel delivery. Modern vehicles use electronic fuel injection systems, making the choke obsolete.

4. Requires Regular Maintenance: Like any other mechanical component, the Borg Warner VC-373 carburetor choke requires regular maintenance to ensure optimal performance. Failure to maintain the choke may result in poor engine starting or even engine damage in extreme cases.

The Borg Warner VC-373 carburetor choke offers several advantages, including ease of installation, durability, affordability, and reliable engine starting. However, it also comes with some disadvantages, such as limited adjustability, compatibility issues with modern vehicles, and the need for regular maintenance. When considering whether to invest in the Borg Warner VC-373 carburetor choke, vehicle owners must weigh these pros and cons against their specific needs and circumstances. For those with older vehicles that require a dependable and affordable carburetor choke, the Borg Warner VC-373 may be an excellent choice. However, for those with modern vehicles or more demanding requirements, other options may be more suitable.

For those with older Buick, Chevrolet, GMC, or Pontiac vehicles that require a reliable and affordable carburetor choke, the Borg Warner VC-373 is a solid choice. However, it is crucial to ensure that the vehicle's vacuum system is in good working condition before installing the choke to ensure optimal performance. Additionally, regular maintenance is necessary to keep the choke functioning correctly and efficiently. If the vehicle has a weak vacuum system or more demanding starting requirements, alternative options, such as electric or hydraulic chokes, may be worth considering.

part # vc373 prices

• $15.52-$18.00

specifications carbcaddie:

• for makes: Buick, Chevrolet, Gmc, Pontiac
• brand: Borgwarner
• type: Choke
• oe/oem part number: 7042715, 779084
• manufacturer part number: VC-373

offer carbcaddie:

• options: Ship-to-home
• sold: 0
• availability: In Stock
• quantity: 1
• started: March 20, 2025

returns carbcaddie:

• time: 14 Days
• paid by: Buyer
• policy: Returns Accepted

seller carbcaddie:

• rating: 99.1%
• # reviews: 1650

general carbcaddie:

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

payments carbcaddie:

• other
• credit card: Diners-club
• wallet: Google-pay

shipping carbcaddie:

• type: Calculated
• service: USPS Ground Advantage, UPS 3 Day Select
• class: Standard, Expedited
• cost: $4.71
• transit: 4-9 Days
• carrier: USPS, UPS

Borgwarner VC-373 Is Similar To:

• Borgwarner Th-18 1965-1967 Chevy Nos 4-bbl Holley H4-4160 Carburetor Choke Thermostat (47.6% similar) $16.45–$34.95. (December 12th, 2024)
• Borgwarner 3821564 New 1963-71 Buick Chevrolet Olds Pontiac 194-230-250 Carburetor Choke Thermostat (62.6% similar) $10.69–$25.00. (December 12th, 2024)
• Borgwarner Th-19 1966 Chevrolet 327 Engine Nos 4-barrel Carburetor Choke Thermostat (55.4% similar) $34.95. (December 24th, 2024)
• Borgwarner Th-25 1965-1970 Chevrolet Nos 2bbl And 4bbl Choke Thermostat In Original Box (42.4% similar) $34.95. (December 24th, 2024)
• Borgwarner Cv107 Choke Thermostat Ford Mercury 1965 1966 1967 170 200 1 Barrel (26.1% similar) $21.60. (April 14th, 2025)
• Borgwarner Th-100 Borg Warner Choke Thermostat (48.1% similar) $13.50. (June 26th, 2025)
• Borgwarner 10212a Nos Borg-warner Carburetor Tune Up Kit (51.8% similar) $10.00–$34.95. (July 23rd, 2025)
• Borgwarner Cv137 Choke Thermostat Cutlass 442 F85 Delta Bonneville Catalina Firebird Gto Lemans (27% similar) $14.00. (July 25th, 2025)
• Borgwarner 10235a Nos Borg Warner Carb Kit Ford F1 (49.6% similar) $10.00. (July 28th, 2025)
• Borgwarner Cv3-9001 1bbl Rochester Choke Thermostat Impala Camaro Chevy Nova Skylark Special Cutlass (29.5% similar) $6.95. (August 9th, 2025)
• Borgwarner Cf250 Borg Warner Float For Carburetor Gm Chevy Buick Oldsmobile (59.5% similar) $8.50. (August 23rd, 2025)