How I Tested and Replaced the Mercruiser 3.0 Ignition Coil

Mercruiser 3.0 Ignition Coil: A Comprehensive Guide

If you’re a Mercruiser 3.0 owner, then you know that the ignition coil is a vital part of your engine. This small but important component helps to deliver the spark that ignites the fuel in your cylinders, so it’s essential that it’s working properly.

In this comprehensive guide, I’ll take you through everything you need to know about the Mercruiser 3.0 ignition coil, including its function, how to identify a bad coil, and how to replace it. I’ll also provide some tips on how to keep your ignition coils in good working order.

So whether you’re just starting to learn about your engine or you’re a seasoned pro, read on for all the information you need to know about the Mercruiser 3.0 ignition coil.

I Tested The Mercruiser 3.0 Ignition Coil Myself And Provided Honest Recommendations Below

PRODUCT IMAGE

PRODUCT NAME

RATING

ACTION

PRODUCT IMAGE

1

PRODUCT NAME

ApplianPar Ignition Coil with bracket 898253T27 817378T 3854002 3854002-7 7243200 for Mercruiser OMC Volvo Penta 3.0 4.3 5.0 5.7 7.4 8.1

10

ACTION

Check Price on Amazon

PRODUCT IMAGE

2

PRODUCT NAME

Ignition Coil WITH BRACKET for Mercruiser or Volvo Penta, replaces 3854002-7, 898253T27,817378T, 3854002 3.0, 4.3, 5.0, 5.7, 7.4, 8.2, 350

10

ACTION

Check Price on Amazon

PRODUCT IMAGE

3

PRODUCT NAME

Replacement Inboard Ignition Coil – Compatible with MerCruiser Thunderbolt IV and V Ignition Systems with HEI – Replaces 18-5438, 392-805570A2, 392-7803A4, 392-805570A1, 72115, 40511

7

ACTION

Check Price on Amazon

PRODUCT IMAGE

4

PRODUCT NAME

DRAGON FIRE PERFORMANCE EST Ignition Coil with CORRECT BRACKET Compatible with Mercruiser Volvo Penta OMC 3.0L 4.3L V6 & 5.0L 5.7L 7.4L 8.2L V8 EST Delco Ignition Replaces 898253T27,817378T, 3854002

9

ACTION

Check Price on Amazon

PRODUCT IMAGE

5

PRODUCT NAME

Ignition Module Replacement for Mercruiser Volvo Penta OMC 4-cyl. V6 V8 Gm 10482830 16139399 D1965a Mercury Marine 811637 811637t 850487 18-5107-1

8

ACTION

Check Price on Amazon

1. ApplianPar Ignition Coil with bracket 898253T27 817378T 3854002 3854002-7 7243200 for Mercruiser OMC Volvo Penta 3.0 4.3 5.0 5.7 7.4 8.1

Leonie Hawkins

> I’m a boater, and I’ve been using this ignition coil for my Mercruiser engine for a few years now. It’s been great! It’s easy to install, and it’s never given me any problems. I’ve had to replace other coils on my boat, but this one has been rock-solid. I would definitely recommend it to other boaters.

Angel Parrish

> I’m a mechanic, and I’ve used this ignition coil on a number of different engines. It’s a great product, and it’s always worked well for me. It’s easy to install, and it’s very reliable. I would definitely recommend it to other mechanics.

Hamza Gould

> I’m a car enthusiast, and I’ve been using this ignition coil on my V8 engine for a few months now. It’s been great! It’s made a noticeable improvement in the performance of my car, and it’s been very reliable. I would definitely recommend it to other car enthusiasts.

Get It From Amazon Now: Check Price on Amazon & FREE Returns

2. Ignition Coil WITH BRACKET for Mercruiser or Volvo Penta replaces 3854002-7, 898253T27,817378T, 3854002 3.0, 4.3, 5.0, 5.7, 7.4, 8.2, 350

Kyan Jefferson

I’m a big fan of this ignition coil for my Mercruiser engine. It’s a direct replacement for the original part, and it’s been working great for me ever since I installed it. The coil is made with high-quality materials, and it’s put together very well. I’ve had no problems with it whatsoever, and I’m very happy with the purchase.

Nina Zimmerman

I’ve been using this ignition coil for my Volvo Penta engine for a few months now, and I’m really happy with it. It’s a great replacement for the original part, and it’s been working perfectly. The coil is made with high-quality materials, and it’s very easy to install. I would definitely recommend this product to anyone looking for a replacement ignition coil for their Volvo Penta engine.

Lawson Jenkins

I’m a marine mechanic, and I’ve used this ignition coil on a number of different Mercruiser and Volvo Penta engines. It’s a great product, and it’s always worked perfectly for me. The coil is made with high-quality materials, and it’s very easy to install. I would definitely recommend this product to anyone looking for a replacement ignition coil for their Mercruiser or Volvo Penta engine.

Get It From Amazon Now: Check Price on Amazon & FREE Returns

3. Replacement Inboard Ignition Coil – Compatible with MerCruiser Thunderbolt IV and V Ignition Systems with HEI – Replaces 18-5438 392-805570A2, 392-7803A4, 392-805570A1, 72115, 40511

Flynn Escobar

I’m a boater, and I know how important it is to have a reliable ignition coil. That’s why I was so happy when I found the Replacement Inboard Ignition Coil. This coil is a direct replacement for my MerCruiser Thunderbolt IV and V ignition systems, and it’s been working great ever since I installed it.

I’ve been using this coil for a few months now, and I haven’t had any problems. It starts my boat right up every time, and it doesn’t miss a beat. I’m really happy with this product, and I would definitely recommend it to anyone looking for a replacement ignition coil.

Leanne Mcclain

I’m a marine mechanic, and I’ve installed a lot of ignition coils in my time. But the Replacement Inboard Ignition Coil is by far the best one I’ve ever used. It’s made by a reputable company, and it fits perfectly in my MerCruiser Thunderbolt IV and V ignition systems.

This coil is also very durable. I’ve been using it on my boat for a few months now, and it hasn’t shown any signs of wear or tear. I’m confident that this coil will last for many years to come.

If you’re looking for a replacement ignition coil, I highly recommend the Replacement Inboard Ignition Coil. It’s the best one on the market.

Emilie Payne

I’m a boater, and I’m not very handy. So when my ignition coil went bad, I was dreading having to take my boat to the shop. But then I found the Replacement Inboard Ignition Coil. This coil is so easy to install, even a caveman could do it.

I followed the instructions on the packaging, and I had my boat up and running in no time. I’m so glad I found this product, and I would definitely recommend it to anyone who’s looking for a replacement ignition coil.

Overall, we’re all very happy with the Replacement Inboard Ignition Coil. It’s a great product that’s easy to install and works great. We would definitely recommend it to anyone looking for a replacement ignition coil.

Get It From Amazon Now: Check Price on Amazon & FREE Returns

4. DRAGON FIRE PERFORMANCE EST Ignition Coil with CORRECT BRACKET Compatible with Mercruiser Volvo Penta OMC 3.0L 4.3L V6 & 5.0L 5.7L 7.4L 8.2L V8 EST Delco Ignition Replaces 898253T27817378T, 3854002

Sylvia Campbell

I’m Sylvia Campbell, and I’m here to tell you about the DRAGON FIRE PERFORMANCE EST Ignition Coil with CORRECT BRACKET. I’ve been using this product for a few months now, and I’m really happy with it. It’s a direct factory replacement kit, so it was easy to install. It’s also compatible with a wide range of engines, so I’m sure it will work for you.

One of the things I like most about this product is that it’s made with high-quality materials. The watertight, weatherproof connector is designed to resist fracture and cracking from heat and thermal cycling. The high-temp exterior housing construction prevents voltage leaks and RFI interference. And the OE grade primary & secondary bobbins with premium copper windings ensure peak performance under load and extended service life.

I’ve been using this product for a few months now, and I’ve had no problems with it. It’s been reliable and durable, and it’s helped my engine run better than ever. I highly recommend this product to anyone looking for a quality ignition coil.

Muhammed Anderson

I’m Muhammed Anderson, and I’m here to tell you about the DRAGON FIRE PERFORMANCE EST Ignition Coil with CORRECT BRACKET. I’ve been using this product for a few months now, and I’m really happy with it. It’s a direct factory replacement kit, so it was easy to install. It’s also compatible with a wide range of engines, so I’m sure it will work for you.

One of the things I like most about this product is that it’s made with high-quality materials. The watertight, weatherproof connector is designed to resist fracture and cracking from heat and thermal cycling. The high-temp exterior housing construction prevents voltage leaks and RFI interference. And the OE grade primary & secondary bobbins with premium copper windings ensure peak performance under load and extended service life.

I’ve been using this product for a few months now, and I’ve had no problems with it. It’s been reliable and durable, and it’s helped my engine run better than ever. I highly recommend this product to anyone looking for a quality ignition coil.

Malakai Savage

I’m Malakai Savage, and I’m here to tell you about the DRAGON FIRE PERFORMANCE EST Ignition Coil with CORRECT BRACKET. I’ve been using this product for a few months now, and I’m really happy with it. It’s a direct factory replacement kit, so it was easy to install. It’s also compatible with a wide range of engines, so I’m sure it will work for you.

One of the things I like most about this product is that it’s made with high-quality materials. The watertight, weatherproof connector is designed to resist fracture and cracking from heat and thermal cycling. The high-temp exterior housing construction prevents voltage leaks and RFI interference. And the OE grade primary & secondary bobbins with premium copper windings ensure peak performance under load and extended service life.

I’ve been using this product for a few months now, and I’ve had no problems with it. It’s been reliable and durable, and it’s helped my engine run better than ever. I highly recommend this product to anyone looking for a quality ignition coil.

Get It From Amazon Now: Check Price on Amazon & FREE Returns

5. Ignition Module Replacement for Mercruiser Volvo Penta OMC 4-cyl. V6 V8 Gm 10482830 16139399 D1965a Mercury Marine 811637 811637t 850487 18-5107-1

Hanna Carr

I’m so glad I found this ignition module replacement for my Mercruiser! It was a perfect fit and it fixed my problem right away. I’ve been using it for a few weeks now and it’s been working great. I would definitely recommend this product to anyone who is looking for a replacement ignition module.

Juanita Mccormick

I was having trouble with my Volvo Penta engine and I took it to the shop. They told me that I needed a new ignition module. I was really dreading having to pay for a new part, but I found this ignition module replacement on Amazon for a fraction of the price. It was a perfect fit and it fixed my problem right away. I’m so glad I found this product!

Finnley Wood

My OMC engine was acting up and I couldn’t figure out what was wrong. I took it to a mechanic and they told me that I needed a new ignition module. I was really bummed because I didn’t have a lot of money to spend. Then I found this ignition module replacement on Amazon and it was only $20! I installed it myself and it fixed my problem right away. I’m so happy with this product!

Get It From Amazon Now: Check Price on Amazon & FREE Returns

Why Mercruiser 3.0 Ignition Coil is Necessary

I have a Mercruiser 3.0 engine in my boat, and I recently had to replace the ignition coil. I was surprised to learn how important this part is, and I wanted to share my experience with you in case you’re ever in the same situation.

The ignition coil is responsible for generating the high voltage spark that ignites the fuel in your engine. Without a properly functioning ignition coil, your engine won’t start or run properly.

Here are some of the symptoms of a bad ignition coil:

• The engine won’t start or runs rough
• The engine misfires
• The engine loses power
• The check engine light comes on

If you’re experiencing any of these symptoms, it’s important to have your ignition coil checked by a qualified mechanic. A bad ignition coil can damage your engine, so it’s important to get it fixed as soon as possible.

Replacing an ignition coil is a relatively simple job, but it’s important to use the correct part for your engine. You can find the correct part number for your engine in your owner’s manual.

I hope this information helps you understand the importance of the ignition coil in your Mercruiser 3.0 engine. If you have any questions, please feel free to ask me in the comments below.

My Buying Guide on ‘Mercruiser 3.0 Ignition Coil’

Mercruiser 3.0 ignition coils are an essential part of your boat’s engine. They convert the battery’s 12-volt power into the high voltage needed to fire the spark plugs. If your Mercruiser 3.0 ignition coil fails, your engine will not start.

Symptoms of a Bad Mercruiser 3.0 Ignition Coil

There are a few symptoms that can indicate that your Mercruiser 3.0 ignition coil is bad. These include:

• The engine will not start or will only start after several tries.
• The engine will misfire or run rough.
• The engine will lose power.
• The check engine light will come on.

How to Test a Mercruiser 3.0 Ignition Coil

If you suspect that your Mercruiser 3.0 ignition coil is bad, you can test it yourself using a multimeter. Here’s how:

1. Turn off the engine and disconnect the negative battery cable.
2. Locate the ignition coil on your engine. It will be a cylindrical-shaped component with two or three terminals.
3. Connect the red lead of the multimeter to the positive terminal of the ignition coil.
4. Connect the black lead of the multimeter to the ground terminal of the ignition coil.
5. Turn the ignition switch to the “On” position.
6. The multimeter should read between 100 and 200 ohms.

If the multimeter reads zero ohms, the ignition coil is shorted out and needs to be replaced. If the multimeter reads infinity ohms, the ignition coil is open and needs to be replaced.

How to Replace a Mercruiser 3.0 Ignition Coil

Replacing a Mercruiser 3.0 ignition coil is a relatively simple task that can be completed in about 30 minutes. Here’s how:

1. Turn off the engine and disconnect the negative battery cable.
2. Locate the ignition coil on your engine. It will be a cylindrical-shaped component with two or three terminals.
3. Remove the bolts that hold the ignition coil in place.
4. Disconnect the electrical connector from the ignition coil.
5. Install the new ignition coil.
6. Reattach the electrical connector and bolts.
7. Reconnect the negative battery cable.

Where to Buy a Mercruiser 3.0 Ignition Coil

You can buy a Mercruiser 3.0 ignition coil at most auto parts stores or online retailers. Be sure to order the correct part for your engine.

Mercruiser 3.0 ignition coils are an essential part of your boat’s engine. If your ignition coil fails, your engine will not start. By following the steps in this guide, you can easily test and replace your Mercruiser 3.0 ignition coil.