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BOSCH 4A302 Antique American Mrd Magneto

4a302 Bosch Antique American Mrd Magneto Parts

( Brand: Bosch ), ( Manufacturer Part Number: 4A302 ), ( Model: AMERICAN BOSCH MRD 4A302 ), ( Part Type: Magneto ), ( Compatible Equipment Make: American )

Review BOSCH Antique American Mrd Magneto Parts

The Bosch 4A302 Antique American MRD Magneto is a classic and authentic ignition system designed for vintage cars and aircraft engines. This magneto is a testament to the rich history of automotive engineering and is a must-have for enthusiasts and collectors.

The Bosch 4A302 is a 6-volt, 12-pole magneto, which means it produces 6 volts of electricity with a total of twelve poles. It is designed with a traditional rotor and distributor that delivers high-voltage sparks to the spark plugs, ensuring efficient combustion in the engine. The magneto housing is made of cast aluminum, giving it a robust and durable construction that can withstand the rigors of regular use.

The Bosch 4A302 features a mechanically advanced MRD (Multi-Reluctor Distributor) design, which uses a series of reluctor vanes on the distributor rotor to control the timing of the spark discharge. This design provides precise and reliable ignition timing, making it an excellent choice for vintage engines that require accurate ignition.

The magneto also comes with adjustable points that allow you to fine-tune the ignition timing to suit the specific requirements of your engine. This feature is essential for achieving optimal engine performance and ensuring reliable starting.

The Bosch 4A302 Antique American MRD Magneto is a high-quality and authentic ignition system that is perfect for vintage cars and aircraft engines. It is built to last and is designed to provide reliable and efficient ignition, making it an essential component for any vintage vehicle enthusiast or collector. With its classic design and advanced features, the Bosch 4A302 is a must-have for anyone looking to restore or maintain a vintage engine.

The Bosch 4A302 antique American MRD magneto is an old-style ignition system designed primarily for vintage vehicles. Here are some pros and cons to help you decide if this magneto is the right choice for your restoration project:

Pros:

1. Authenticity: If you are restoring a vintage vehicle, using an original or replica magneto like the Bosch 4A302 can add to the authenticity of your project.

2. Performance: Magnetos offer a more reliable and consistent spark compared to points and condensers, which can be prone to wear and failure.

3. Durability: Magnetos have fewer moving parts than modern ignition systems, making them more durable and easier to maintain.

4. Simplicity: Magnetos are simpler to install and adjust than modern electronic ignition systems.

Cons:

1. Cost: Original Bosch 4A302 magnetos can be expensive and hard to find, especially in good condition. Replica magnetos may be more affordable but may not offer the same level of performance as an original.

2. Complexity: While magnetos are simpler than modern ignition systems, they can still be complex and require some expertise to install and adjust correctly.

3. Limited availability: Magnetos are not commonly used in modern vehicles, so replacement parts and technical support may be harder to come by.

4. Weight: Magnetos are heavier than modern ignition systems, which can add weight to your vehicle.

In conclusion, the Bosch 4A302 antique American MRD magneto offers authenticity, performance, durability, and simplicity, but it also comes with a higher cost, complexity, limited availability, and additional weight.

If you are restoring a vintage vehicle and prioritize authenticity and performance, then the Bosch 4A302 magneto may be worth the investment. However, if you are working on a budget or prefer a simpler and more modern ignition system, you may want to consider other options. Ultimately, the decision depends on your specific needs, preferences, and resources.

Details:

There is no rotor cap. Should be a great candidate for rebuild or parts. What you see is what I have. See pictures for the absolute best .

Turns over and impulse seems to work.

part #: 4a302 price

  • $103.86

specifications vintaequip:

  • brand: Bosch
  • mpn: 4a302
  • model: American Bosch Mrd 4a302
  • part type: Magneto
  • compatible equipment make: American

seller vintaequip:

  • rating: 99.8%
  • # reviews: 2612
  • city: Lockridge, Iowa

returns vintaequip:

  • policy: No Returns

offer vintaequip:

  • best offers: True
  • started: November 21, 2025
  • quantity: 1
  • sold: 0
  • availability: In Stock
  • options: Ship-to-home

general vintaequip:

  • condition: For parts or not working
  • Heavy Equipment, Parts Attachments > Heavy Equipment Parts Accessories > Antique Vintage Equipment Parts

payments vintaequip:

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

shipping vintaequip:

  • transit: 4-11 Days
  • service: USPS Ground Advantage
  • cost: $14.50
  • carrier: USPS
  • type: Fixed
  • class: Standard
part type: magneto, compatible equipment make: american,
category: business & industrial > heavy equipment, parts attachments > heavy equipment parts accessories > antique vintage equipment parts, sku: 6340223772367781,

Bosch 4A302 Is Similar To:

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4 offers $103.86–$103.86 USD
  • Offer #1: $103.86 price + $4.85 shipping estimate = $108.71* total. Kit includes. Including MRD WW L3228.+$4.85 shipping
  • Offer #2: $103.86 price + $4.85 shipping estimate = $108.71* total. fits all MRD series magnetos.+$4.85 shipping
  • Offer #3: $103.86 price + $4.85 shipping estimate = $108.71* total.+$4.85 shipping
  • Offer #4: $179.95 price + $22.95 shipping estimate = $202.90* total.+$22.95 shipping

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