MAXPEEDINGRODS 3Y4ONP Barrel Carburetor Mechanical 273-318 2BBL

( Brand: Maxpeedingrods ), ( Bolt Hole Spacing Length Width: 82.2mm 47.5mm ), ( California Prop 65 Warning: California Prop 65 Warning ), ( Choke Air Horn Outer Diameter: 66mm ), ( Choke Type: Mechanical ), ( Features: Down Draft ), ( Fitment 1: For Plymouth Models1966-1973 With 273-318 Engine ), ( Fitment 2: For Dodge Truck 1966-1973 With 273-318 Engine ), ( Fitment Type: Direct Replacement ), ( Intake Side Inner Diameter: 36.5mm ), ( Ipn: 273-318 ), ( Items Included: Gasket, Mounting Hardware ), ( Manufacturer Part Number: 3Y4ONP ), ( Manufacturer Warranty: 2 Years ), ( Material: Alloy ), ( Note: No Instruction Included ), ( Notice: This Is Aftermarket Replcement Part., California Prop 65 Warning., This Is Aftermarket Replcement Part ), ( Oe Spec Or Performance/custom: Oe Spec ), ( Oe/oem Part Number: 273-318, 273318, 273 318, 2280 R 40165, C6060, C6062, 8211s, 14-161, 14-142, 14-130, 4113, 4959, Carburetor Carb, Two Barrel Carburetor, 2-barrel Carburetor, 2 Barrel Carburetor, 2 Barrel Carb, Carburetor Manual Choke, 2 Bbl Carburetor, 2 Bbl Carb, For Dodge 318 2 Barrel Carburetor, For Dodge 273 2 Barrel Carburetor, Carburetor, Carburettor, Carburetter, Carb, Carby ), ( Package Contents: 1x 273-318 Carburetor, Flange Gaskets Air Gasket ), ( Part Type: Fuel System ), ( Placement On Vehicle: Front ), ( Quantity: 1 Piece As Show In The Picture ), ( Type: Carburetor ), ( Universal Fitment: No ), ( Venturi Diameter: 31mm )

Review MAXPEEDINGRODS Barrel Carburetor Dodge Truck Plymouth Mechanical fits 1966–1973

Introducing the Maxxeco 3Y4ONP 2-barrel carburetor, a high-performance replacement for your Dodge or Plymouth 273-318 engines manufactured between 1966 and 1973. This mechanical carburetor is designed and manufactured by Maxxeco, a well-known and trusted name in the automotive industry.

The Maxxeco 3Y4ONP carburetor is a 2-barrel design, which means it utilizes two separate barrels to feed fuel to the engine. This configuration provides excellent idle quality and smooth power delivery throughout the RPM range. The barrels are constructed from high-quality aluminum, ensuring durability and resistance to corrosion.

One of the standout features of this carburetor is its vacuum secondary system. This system utilizes a secondary throttle plate and a vacuum actuator that opens the secondary ports under light engine vacuum conditions. This results in improved low-end torque and throttle response.

The Maxxeco 3Y4ONP carburetor is also equipped with a power valve, which helps to maintain proper engine idle and vacuum operation. The power valve is adjustable, allowing you to fine-tune the idle speed and quality to your specific engine and driving conditions.

Another notable feature of this carburetor is its adjustable jet kit. The jet kit includes a range of main and power jets to accommodate various engine sizes and conditions. This allows you to easily fine-tune the carburetor for optimal performance and fuel efficiency.

The Maxxeco 3Y4ONP carburetor is also designed with ease of installation in mind. It comes with all necessary hardware, including new gaskets, to make the installation process as straightforward as possible. The carburetor is also compatible with stock intake manifolds and air cleaners, making it a direct replacement for your original equipment.

Overall, the Maxxeco 3Y4ONP 2-barrel carburetor is an excellent choice for anyone looking to upgrade the fuel delivery system on their Dodge or Plymouth 273-318 engines from 1966 to 1973. Its vacuum secondary system, adjustable power valve, and adjustable jet kit provide excellent performance and flexibility, while its durable construction and straightforward installation process make it a practical and cost-effective solution.

The Maxximus 3Y4ONP 2BBL barrel carburetor is a popular aftermarket option for Dodge and Plymouth vehicles with 273-318 cubic inch engines manufactured between 1966 and 1973. This carburetor is known for its performance improvements and affordability. Here are some pros and cons to help you decide if this carburetor is the right choice for your classic car.

1. Improved Performance: Maxximus carburetors are designed to provide better fuel flow, which translates to improved engine performance. This can result in increased horsepower and torque.

2. Affordability: Compared to other high-performance carburetors, the Maxximus 3Y4ONP is relatively affordable, making it an attractive option for budget-conscious enthusiasts.

3. Easy Installation: This carburetor is designed to be a direct replacement for the original factory carburetor, which means that installation is typically straightforward.

4. Adjustability: The Maxximus 3Y4ONP offers a high level of adjustability, allowing you to fine-tune the carburetor to meet the specific needs of your engine.

1. Complexity: Compared to a stock carburetor, the Maxximus 3Y4ONP is more complex, which can make tuning and adjustment more challenging. It may require more time and expertise to get the carburetor set up correctly.

2. Fuel Consumption: With improved performance comes increased fuel consumption. This may not be a concern for some enthusiasts, but it's important to keep in mind if you're looking to maintain original fuel economy.

3. Potential for Leakage: As with any carburetor, there is a risk of fuel leakage. Proper installation and regular maintenance are essential to prevent leaks and ensure optimal performance.

The Maxximus 3Y4ONP 2BBL barrel carburetor offers significant performance improvements for Dodge and Plymouth vehicles with 273-318 cubic inch engines. While it may be more complex than a stock carburetor and require some tuning and adjustment, its affordability and ease of installation make it an attractive option for many classic car enthusiasts. Ultimately, the decision to purchase this carburetor depends on your specific needs, budget, and level of expertise. If you're looking for improved performance and are willing to put in the time and effort to get it set up correctly, the Maxximus 3Y4ONP could be a great choice for your classic car.

part # 3y4onp prices

• $58.49-$158.99

specifications carbcaddie:

• for makes: Dodge, Plymouth
• for years: 1966-1973
• brand: Maxpeedingrods
• bolt hole spacing length width: 82.2mm 47.5mm
• california prop 65 warning: California Prop 65 Warning
• choke air horn outer diameter: 66mm
• choke type: Mechanical
• features: Down Draft
• fitment 1: For Plymouth Models1966-1973 With 273-318 Engine
• fitment 2: For Dodge Truck 1966-1973 With 273-318 Engine
• fitment type: Direct Replacement
• intake side inner diameter: 36.5mm
• interchange part number: 273-318
• items included: Gasket, Mounting Hardware
• manufacturer part number: 3Y4ONP
• manufacturer warranty: 2 Years
• material: Alloy
• note: No Instruction Included
• notice: This Is Aftermarket Replcement Part., California Prop 65 Warning., This Is Aftermarket Replcement Part
• oe spec or performance/custom: Oe Spec
• oe/oem part number: 273-318, 273318, 273 318, 2280 R 40165, C6060, C6062, 8211s, 14-161, 14-142, 14-130, 4113, 4959, Carburetor Carb, Two Barrel Carburetor, 2-barrel Carburetor, 2 Barrel Carburetor, 2 Barrel Carb, Carburetor Manual Choke, 2 Bbl Carburetor, 2 Bbl Carb, For Dodge 318 2 Barrel Carburetor, For Dodge 273 2 Barrel Carburetor, Carburetor, Carburettor, Carburetter, Carb, Carby
• package contents: 1x 273-318 Carburetor, Flange Gaskets Air Gasket
• part type: Fuel System
• placement on vehicle: Front
• quantity: 1 Piece As Show In The Picture
• type: Carburetor
• universal fitment: No
• venturi diameter: 31mm

returns carbcaddie:

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

payments carbcaddie:

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

seller carbcaddie:

• rating: 99.2%
• # reviews: 17432

shipping carbcaddie:

• carrier: FedEx
• service: FedEx Ground / FedEx Home Delivery
• cost: $0.00
• transit: 5-8 Days
• class: Standard
• type: Fixed

offer carbcaddie:

• availability: In Stock
• sold: 0
• started: December 31, 2025
• best offers: True
• options: Ship-to-home

general carbcaddie:

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

Maxpeedingrods 3Y4ONP Is Similar To:

• Maxpeedingrods Ca-7051 43mm 1-barrel Carburetor For Ford F150 F250 F350 4.9l 4.1l 3.3l Engine Cu (44.9% similar) $58.89–$142.33. (October 15th, 2025)
• Maxpeedingrods T15ch6 1pc Carburetor Carb For Nissan B210 A14 Engine Pulsar Base Hatchback 16010-w5600 (41.6% similar) $52.49–$77.99. (November 1st, 2025)
• Maxpeedingrods Mk3b8a 2bbl 2 Barrel Carburetor For Dodge Truck Plymouth 273-318 1966-1973 Mechanical (95% similar) $61.69–$139.48. (November 2nd, 2025)
• Maxpeedingrods Hzy35s 2bbl Carburateur Carb Mechanical For Dodge Truck Plymouth 273-318 Engine 66-73 (69% similar) $61.69–$135.89. (November 2nd, 2025)
• Maxpeedingrods Mtka1q Carburetor With Gasket For Dodge Chrysler 318 Engine Bbd Lowtop 2 Barrel 1967-1980 (49% similar) $59.99–$84.50. (November 6th, 2025)
• Maxpeedingrods Tuiw17 2 Barrel Carburetor Manual Choke For Dodge Cherysler 318 Cu V8 5.2l 1967-1980 (58.3% similar) $101.79–$131.32. (November 7th, 2025)
• Maxpeedingrods Lfin8d Carburetor For Dodge Chrysler 318 V8 5.2l 6cil Engine Plymouth Gran Fury (53.6% similar) $62.49–$112.48. (November 15th, 2025)
• Maxpeedingrods Csqwi4 Carburetor Carb For Dodge Plymouth Truck 1966-1973 273-318 2bbl C2-bbd Barrel (59.3% similar) $58.49–$139.48. (November 16th, 2025)
• Maxpeedingrods 2e97c1 Carburetor Fit For Dodge Plymouth C2 Bbd 273 318 Engine 2bbl Carby 1966-1973 (64.6% similar) $65.49–$139.48. (November 20th, 2025)
• Maxpeedingrods Ye9l2z Carburetor Carby For Plymouth Models 1966-1973 273-318 Engine 2 Barrel Carb Kit (33.8% similar) $65.49–$145.99. (November 28th, 2025)
• Maxpeedingrods 6p4g3q Carburetor For Nissan Pickup Truck 520/720/710 65-86 J15 Engine Caravan 1975 (47.5% similar) $60.99–$68.69. (December 8th, 2025)