1. Carburetor Parts On Sale
  2. sku: 8517817020409781
  3. AUTO TUNE 21-713A

AUTO-TUNE 21-713A Float Monojet Carburetor 1-BARREL

fits make: Rochester.

21-713a Auto-tune New Brass Float Rochester Monojet 1-barrel Carburetor

( Brand: Auto-tune ), ( Type: Float ), ( Manufacturer Part Number: 21-713A )

Review AUTO TUNE New Brass Float Rochester Monojet 1-barrel Carburetor

The Auto-Tune 21-713A Float Rochester Monojet 1-barrel Carburetor is a high-performance replacement part designed to deliver optimal fuel efficiency and smooth engine operation for your classic or muscle car. This carburetor is specifically engineered for applications using a 21-713A intake manifold, making it an ideal choice for restoring or upgrading your vehicle's engine.

Constructed from premium materials, this Auto-Tune carburetor boasts a robust and durable design. The float bowls are crafted from corrosion-resistant aluminum, ensuring longevity and maintaining consistent fuel levels. The body is made from cast aluminum, providing excellent heat dissipation and contributing to the carburetor's overall strength.

The 1-barrel design offers a simpler setup compared to multi-barrel alternatives, making it an excellent choice for those seeking a more straightforward installation process. This carburetor features a 750 CFM venturi, allowing it to accommodate a wide range of engine sizes and power requirements.

One of the standout features of the Auto-Tune 21-713A Float Rochester Monojet Carburetor is its self-adjusting fuel level system. This innovative design allows the carburetor to automatically maintain the correct fuel level, ensuring optimal engine performance under various driving conditions. This self-adjusting feature eliminates the need for manual adjustments, providing a hassle-free experience for car enthusiasts.

Equipped with a power valve, this carburetor offers improved idle stability and smoother throttle response. The power valve also helps to reduce emissions, making this an attractive option for those looking to maintain environmental compatibility while enhancing their vehicle's performance.

In summary, the Auto-Tune 21-713A Float Rochester Monojet 1-barrel Carburetor is a high-quality, self-adjusting replacement part designed for classic and muscle cars using a 21-713A intake manifold. Its durable construction, simple design, and innovative self-adjusting fuel level system make it a top choice for those seeking reliable engine performance and a hassle-free installation process.

The Rochester Monojet 1-barrel carburetor with part number 21-713A, specifically designed for use with auto-tune systems, can offer several benefits and drawbacks for vehicle owners looking to improve their engine's performance and fuel efficiency.

Pros:

1. Improved Fuel Economy: Auto-tuning technology adjusts the carburetor in real-time to optimize fuel mixture for better combustion, resulting in improved fuel economy.

2. Smoother Idle and Throttle Response: The self-adjusting feature of auto-tune can help stabilize engine idle, reducing roughness and improving throttle response.

3. Enhanced Performance: By fine-tuning the fuel mixture at various engine speeds and loads, auto-tune can help increase power output and torque, resulting in better overall vehicle performance.

Cons:

1. Complexity and Cost: The addition of an auto-tune system to a carburetor can make the setup more complex, requiring professional installation and potentially higher maintenance costs.

2. Dependence on Sensors: The effectiveness of auto-tune relies on the accuracy and reliability of various sensors, which can potentially fail and lead to incorrect adjustments.

3. Potential Compatibility Issues: Auto-tune systems may not be compatible with all makes and models of vehicles, and it is essential to verify compatibility before purchasing and installation.

In conclusion, the Rochester Monojet 1-barrel carburetor with auto-tune (part number 21-713A) can offer significant improvements in fuel economy, engine response, and performance. However, it comes with the added complexity, potential cost, and compatibility concerns. Vehicle owners considering this upgrade should weigh the pros and cons carefully and consult with a professional mechanic or auto parts specialist for guidance.

Recommendation: If you are looking for improved engine performance, fuel efficiency, and smoother idle and throttle response, the Rochester Monojet 1-barrel carburetor with auto-tune (part number 21-713A) could be an excellent option. However, it is essential to consider the potential complexity, cost, and compatibility issues before making a decision. Consult with a professional mechanic or auto parts specialist to determine if this upgrade is suitable for your specific vehicle make and model.

part # 21713a price

  • $12.50

specifications carbcaddie:

  • for makes: Rochester
  • brand: Auto-tune
  • type: Float
  • manufacturer part number: 21-713A

general carbcaddie:

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

returns carbcaddie:

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

offer carbcaddie:

  • started: January 1, 2026
  • sold: 0
  • options: Ship-to-home
  • availability: In Stock
  • best offers: True

payments carbcaddie:

  • wallet: Google-pay
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shipping carbcaddie:

  • type: Calculated
  • class: Standard
  • cost: $0.00
  • carrier: USPS
  • service: USPS Ground Advantage
  • transit: 5-11 Days

seller carbcaddie:

  • rating: 100.0%
  • # reviews: 32621
for makes: rochester, type: float,
category: auto parts > car truck parts accessories > air fuel delivery > carburetor parts, sku: 8517817020409781,

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  • Offer #1: $12.50 price + free delivery = $12.50* total. See pics for condition. New Auto-Tune float, part number.FREE SHIPPING