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  3. MOPAR 3685846

MOPAR 3685846 Nos Choke Diaphragm Auto Trans Dodge/plymouth 225

fits make: Dodge, Plymouth, Mopar. year: 1973.

3685846 Mopar Nos 1973 Choke Diaphragm For Dodge/plymouth 225 With Auto Trans

( Brand: Mopar ), ( Type: Choke Diaphragm ), ( Manufacturer Part Number: 3685846 ), ( Vintage Part: Yes ), ( Universal Fitment: No ), ( Country Of Origin: United States )

Review MOPAR Nos Choke Diaphragm Dodge/plymouth 225 Auto Trans fits 1973

Introducing the Mopar 3685846 choke diaphragm, an essential component for the carbureted 1973 Dodge and Plymouth vehicles equipped with the 225 automatic transmission. This part is specifically engineered to maintain the optimal performance of your vehicle's fuel system.

The choke diaphragm is a critical component in the carburetor assembly that helps ensure a smooth and reliable cold start. This diaphragm, manufactured by Mopar, is designed to fit perfectly in the carburetor of your 1973 Dodge or Plymouth with the 225 automatic transmission.

Constructed from high-quality materials, this Mopar choke diaphragm boasts superior durability and resistance to wear and tear. Its flexibility ensures an efficient and consistent airflow, which is crucial for the proper functioning of your vehicle's fuel system.

The installation process of this replacement choke diaphragm is straightforward. Simply remove the old diaphragm from the carburetor, and then install the new Mopar component in its place. Designed to be a direct fit, you can trust that this part will restore your vehicle's carburetor to its original performance level.

When you choose Mopar for your automotive parts needs, you're investing in quality and reliability. This choke diaphragm, like all Mopar products, undergoes rigorous testing to ensure it meets the highest standards of fit, function, and durability. By replacing this essential component with a genuine Mopar part, you can enjoy peace of mind knowing that your vehicle is operating at its best.

In summary, the Mopar 3685846 choke diaphragm is an essential upgrade for your 1973 Dodge or Plymouth with the 225 automatic transmission. Its superior quality, durability, and direct fit make it a top choice for those seeking reliable cold starts and optimal fuel system performance.

Mopar 3685846 Choke Diaphragm for Dodge/Plymouth 225 Automatic Transmission: A Detailed Analysis

Introduction:

The Mopar 3685846 choke diaphragm is a vital component for the carburetor system in certain Dodge and Plymouth models with the 225 automatic transmission. This part is essential for ensuring proper engine starting, especially in cold weather conditions. In this analysis, we will examine the pros and cons of purchasing this Mopar choke diaphragm to help you make an informed decision.

Pros:

1. OEM Quality: The Mopar 3685846 choke diaphragm is an Original Equipment Manufacturer (OEM) part. This means it is specifically designed, engineered, and manufactured by Chrysler to meet or exceed the original equipment specifications for your vehicle.

2. Proper Functioning: A worn-out or malfunctioning choke diaphragm can lead to difficulty starting your engine, especially in cold weather. By replacing this component with a new OEM one, you can ensure your engine starts reliably and efficiently.

3. Long-Term Savings: Although the upfront cost of an OEM part may be higher than aftermarket alternatives, the long-term savings can be substantial. OEM parts are designed to last longer, ensuring fewer repairs and replacements down the line.

4. Warranty Coverage: When you purchase a new Mopar part like the 3685846 choke diaphragm, you may be eligible for warranty coverage. This can provide peace of mind knowing that the part is covered if it fails prematurely.

Cons:

1. Cost: The Mopar 3685846 choke diaphragm is an OEM part, which often comes with a higher price tag compared to aftermarket alternatives.

2. Availability: Depending on your location and the availability of the part at your local dealership or parts supplier, you may experience a delay in receiving the part.

3. Installation Complexity: Installing a choke diaphragm can be a more complex process than some other parts, especially if you are not experienced in working on your vehicle's carburetor system.

Conclusion:

The Mopar 3685846 choke diaphragm is an essential component for the starting system in certain Dodge and Plymouth models with the 225 automatic transmission. While it comes with a higher price tag compared to aftermarket alternatives, the benefits of OEM quality, proper functioning, long-term savings, and potential warranty coverage can outweigh the initial investment. If you value the reliability and performance of your vehicle, it is recommended to opt for the genuine Mopar choke diaphragm.

Recommendation:

If you are in need of a new choke diaphragm for your Dodge or Plymouth vehicle with the 225 automatic transmission, we recommend purchasing the OEM Mopar 3685846 part. Although it may require a larger financial commitment upfront, the long-term benefits, including reliable engine starting, OEM quality, and potential warranty coverage, make it a worthwhile investment for maintaining the performance and longevity of your vehicle.

part # 3685846 prices

  • $20.00-$40.00

specifications carbcaddie:

  • for makes: Dodge, Plymouth, Mopar
  • for years: 1973
  • brand: Mopar
  • type: Choke Diaphragm
  • manufacturer part number: 3685846
  • vintage part: Yes
  • universal fitment: No
  • country of origin: United States

general carbcaddie:

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

offer carbcaddie:

  • quantity: 1
  • availability: In Stock
  • sold: 0
  • started: April 18, 2026
  • options: Ship-to-home

shipping carbcaddie:

  • class: Standard
  • type: Calculated
  • service: USPS Ground Advantage
  • cost: $6.09
  • transit: 5-11 Days
  • carrier: USPS

seller carbcaddie:

  • # reviews: 1007
  • rating: 100.0%

returns carbcaddie:

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  • policy: Returns Accepted
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payments carbcaddie:

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for makes: dodge, plymouth, mopar, for years: 1973, type: choke diaphragm, vintage part: yes, universal fitment: no, country of origin: united states,
category: auto parts > car truck parts accessories > air fuel delivery > carburetor parts, sku: 10397166404812602,

Mopar 3685846 Is Similar To:

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4 offers $20.00–$40.00 USD
  • Offer #1: $40.00 price + $6.58 delivery = $46.58* total. The Holley List Number.+$6.58 shipping
  • Offer #2: $30.00 price + $6.58 delivery = $36.58* total. 1973 A-Body Models including Plymouth Valiant & Duster and Dodge Dart Models equipped with 225 cu in Engine & 1-Barrel Holley Carburetor (List # R6594A) with Automatic Transmission without Air Pump.+$6.58 shipping
  • Offer #3: $20.00 price + $6.50 delivery = $26.50* total. Original box is included. This piece fits all 1973 Dodge, Chrysler and Plymouth models equipped with 225 6 cylinder engine.+$6.50 shipping
  • Offer #4: $50.00 price + free delivery = $50.00* total. Very nice NOS 1973 Valiant Dart 225 Holley Automatic 1 Barrel Choke Pull Off, doing: Holley R-6594A. Mopar NOS 1973 Plymouth Valiant Dodge Dart 225 Automatic 1 Barrel Choke Pull Off.FREE SHIPPING