1. Boat Parts In Otsterndriv Sterndrive Prices For Sale.
  2. sku: 4273921570923604
  3. MERCURY MARINE 3854230

MERCURY MARINE 3854230 Cdi Box Gm Boat Engine Ignition Ecu 7.4 V8

fits model: 454. make: Volvo, Penta, Mercury.

3854230 Mercury Marine Volvo Penta 7.4 L 454 V8 Gm Boat Engine Ignition Cdi Box Ecu Computer

( Brand: Mercury Marine ), ( Manufacturer Part Number: 3854230 ), ( Part Type: Ignition Box Engine Ecu ), ( Country Of Origin: United States )

Review MERCURY MARINE Volvo Penta 7.4 V8 Gm Boat Engine Ignition Cdi Box Ecu Computer fits 454

Introducing the Mercury Marine 3854230 Volvo Penta 7.4 454 V8 GM Boat Engine Ignition CDI Box ECU, a high-performance ignition system designed specifically for Volvo Penta 7.4 liter V8 GM marine engines. This ignition control module, also known as an Electronic Control Unit (ECU), is responsible for delivering precise and reliable ignition timing to ensure optimal engine performance.

The Mercury Marine 3854230 is a top-tier solution engineered to meet the demanding requirements of marine applications. It's a direct replacement for the original equipment on your Volvo Penta 7.4 454 V8 GM engine and is designed to provide superior durability, reliability, and ease of use.

This CDI Box ECU utilizes state-of-the-art Continuous Discharge Ignition (CDI) technology to deliver a consistent spark to your engine's cylinders. It's capable of supplying up to 45 amps of peak current, ensuring reliable ignition even in the most challenging conditions. The advanced ignition system also offers fast response times, resulting in smoother engine operation and improved fuel efficiency.

The 3854230 is a plug-and-play unit, making installation a breeze. It's designed to fit seamlessly into your existing engine wiring harness, eliminating the need for complex wiring modifications. Additionally, the ignition control module is fully sealed and protected against the harsh marine environment, ensuring long-lasting performance.

This Mercury Marine ignition system is backed by a robust warranty, providing peace of mind and confidence in your purchase. It's a wise investment for boat owners seeking to enhance their engine's performance, reliability, and overall enjoyment.

In summary, the Mercury Marine 3854230 Volvo Penta 7.4 454 V8 GM Boat Engine Ignition CDI Box ECU is a top-quality, reliable, and easy-to-install ignition control module designed specifically for Volvo Penta 7.4 liter V8 GM marine engines. It delivers precise and reliable ignition timing, superior durability, and easy installation, making it an essential upgrade for any boat owner.

The Mercury Marine 3854230 Volvo Penta 7.4 454 V8 GM boat engine Ignition CDI Box ECU is a crucial component for the ignition system of the Volvo Penta 7.4 454 V8 GM marine engine. Here are some pros and cons that may help you decide whether to purchase this part:

Pros:

1. Improved Ignition Efficiency: The CDI (Capacitor Discharge Ignition) system in this ECU delivers a more efficient ignition than traditional distributor-based systems. This can lead to better engine performance and fuel efficiency.

2. Durability: Volvo Penta is known for manufacturing high-quality marine engines, and this ECU is no exception. It's built to withstand the harsh marine environment, ensuring long-lasting performance.

3. Easy Installation: This ECU is a direct replacement for the original part, making installation relatively straightforward.

4. Fault Diagnosis: The ECU includes a diagnostic function that can help identify any faults in the ignition system, making it easier to troubleshoot and repair any issues.

Cons:

1. Cost: Compared to other aftermarket options, the OEM (Original Equipment Manufacturer) price for this ECU can be quite high.

2. Availability: Depending on your location or the availability of stock, it may take some time to receive this part.

3. Complexity: While the installation process is generally straightforward, the diagnostic function and CDI system may require some additional knowledge and skills to fully utilize.

In conclusion, the Mercury Marine 3854230 Volvo Penta 7.4 454 V8 GM boat engine Ignition CDI Box ECU offers several advantages, including improved ignition efficiency, durability, easy installation, and fault diagnosis. However, its high cost and potential complexity may be drawbacks for some buyers. Ultimately, whether this part is a good investment depends on your specific situation and needs.

If you value the reliability and performance offered by Volvo Penta and are willing to pay the premium price, this ECU is an excellent choice. However, if you're looking for a more cost-effective solution or have the skills and knowledge to work with aftermarket parts, there may be other options to consider. Ultimately, the decision is yours to make based on your budget, technical expertise, and desired level of performance.

Details:

I will do my best to resolve the issue. Please look at all pictures and read entire before buying. Look at pictures closely and ask any questions, I try to describe parts as best can. Thanks -Mike.

What you see in the pictures is what get. Condition: Good used condition. Part was removed from a Volvo Penta 7.4 L Marine Engine. Shelf 24-9-4-C.

Mounting hardware is only included if it shown in the pictures.

part #: 3854230 price

  • $759.05

specifications otsterndriv:

  • for models: 454
  • for makes: Volvo, Penta, Mercury
  • brand: Mercury Marine
  • mpn: 3854230
  • part type: Ignition Box Engine Ecu
  • country of origin: United States

seller otsterndriv:

  • city: Huron, Ohio
  • # reviews: 111328
  • rating: 99.4%

offer otsterndriv:

  • availability: In Stock
  • started: October 28, 2025
  • quantity: 1
  • options: Ship-to-home
  • sold: 0

returns otsterndriv:

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

general otsterndriv:

  • condition: Used
  • Boat Parts > Sterndrive Motors Components > Other

shipping otsterndriv:

  • service: FedEx Ground / FedEx Home Delivery, USPS Ground Advantage, USPS Priority Mail
  • cost: $21.65
  • transit: 2-6 Days
  • class: Standard, Expedited
  • carrier: FedEx, USPS
  • type: Calculated

payments otsterndriv:

  • wallet: Paypal
  • other
  • credit card: Visa
for models: 454, for makes: volvo, penta, mercury, part type: ignition box engine ecu, country of origin: united states,
category: boat parts > sterndrive components, sku: 4273921570923604,
Mercury Marine 3854230 Is Similar To:
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1 offer $759.05 USD
  • Used. Offer #1 priced at $759.05 + $23.52 shipping estimate = $782.57* total. I will do my best to resolve the issue. Part was removed from a Volvo Penta 7.4 L Marine Engine.+$23.52 shipping

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