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Mercury Verado Pencil Coils alternative

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Mercury Verado Pencil Coils alternative

Old 01-20-2020, 01:41 PM
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Default Mercury Verado Pencil Coils alternative

Hi All,
I have two Verado 250hp 2008 models with about 650 hours. Started running rough even though I had replaced
plugs, filters, etc. So asked Mercury dealer cost of pencil coils - $87.00 each with tax. So that's $1,044 plus tax for
the 12 that I needed.

I did the research and determined that Delphi's product is more than likely the same as Mercury's part. There's no
way Mercury would tool up for such a relatively low volume part.

Bought them on Amazon for $22.43 each. Put them him, simple install, and worked like a champ. BTW the Amazon
picture is not accurate.


Old 01-20-2020, 02:22 PM
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Why replace coils that are not defective?

Or do you presume that all 12 have failed?
Old 01-20-2020, 02:31 PM
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Originally Posted by alloyboy View Post
Why replace coils that are not defective?

Or do you presume that all 12 have failed?
they're on their way.
Old 01-20-2020, 03:20 PM
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Delphi manufactures the coils for Mercury.
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Old 01-20-2020, 04:51 PM
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If those were the original 12 year old coils, best to replace them all. They were way past life expectancy.
Old 01-20-2020, 05:16 PM
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Is there a benefit to replacing all of them at once as opposed to only replacing the ones that fail?
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Old 01-21-2020, 04:13 AM
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FYI, those are the same problematic coils that you are replacing. Mercury has since changed manufacturers and internal design.
Old 01-21-2020, 04:26 AM
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Originally Posted by davidwademarine View Post
FYI, those are the same problematic coils that you are replacing. Mercury has since changed manufacturers and internal design.

who manufactures the new ones?
Old 01-21-2020, 05:22 AM
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Originally Posted by steve76 View Post
Is there a benefit to replacing all of them at once as opposed to only replacing the ones that fail?
saves you from diagnosing and replacing the rest while on the water over the following season or two. Been there, done that.

Dont know the year when they changed over, but like the OP mine were the original style and will fail.
Old 01-21-2020, 06:58 AM
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When did Mercury change the design? I had a 2015 engine that had a few that needed t be replaced. Taking delivery of a new boat with 2019 engines. Will the new engines have the improved pencil coils?
Old 01-21-2020, 07:02 AM
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I always use OEM, especially when it comes to the electronics side of the motor. Keep the posted updated on how they perform
Old 01-21-2020, 07:21 AM
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I say bravo Zulu to the OP for being resourceful and not just throwing money at it. Getting hung up on using OEM stuff that in 99% of cases was actually "sourced" by the OEM - well we all have opinions.
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Old 01-21-2020, 10:52 AM
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This info has been posted on VeradoClub for many years.
The Delphi coils are good and work well.
Mercury redesigned the coils many years ago to eliminate a top cap which led to corrosion issues.
The Delphi coils look like the new version.
The coils can only change physically if Mercury changes the type and orientation of the plugs - that is not likely.
Old 01-21-2020, 11:06 AM
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The Verado Club



Aftermarket pencil coils


.
Old 01-21-2020, 11:14 AM
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Originally Posted by davidwademarine View Post
FYI, those are the same problematic coils that you are replacing. Mercury has since changed manufacturers and internal design.
When was the change? Is my 2018 old style or new style from the factory?
Old 01-21-2020, 11:21 AM
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Originally Posted by HTJ View Post
I say bravo Zulu to the OP for being resourceful and not just throwing money at it. Getting hung up on using OEM stuff that in 99% of cases was actually "sourced" by the OEM - well we all have opinions.
The probability of a single coil failing is low. Very low.

The probability of 12 of the rascals all failing at or about the same time? Statistically insignificant.

If replacing 12 coils (which may or may not be defective) is not throwing money at a perceived problem then I don't know what is.

But it is not my money. Throw away.

Old 01-21-2020, 11:28 AM
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I replace mine as they go. Probably half are aftermarket. Haven't had a problem with them yet. I keep a spare on the boat now in a vacuum sealed bag.
Old 01-21-2020, 12:07 PM
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Originally Posted by davidwademarine View Post
FYI, those are the same problematic coils that you are replacing. Mercury has since changed manufacturers and internal design.
New design has a different looking head. Silicone Gel filled top
Old 01-21-2020, 12:27 PM
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Originally Posted by alloyboy View Post
…... is not throwing money at a perceived problem then I don't know what is.

But it is not my money. Throw away.

Proactively changing out coils on a 12 year old Verado that's having running issues for $22 each is smart money IMO.
Old 01-21-2020, 03:15 PM
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Originally Posted by HTJ View Post
Proactively changing out coils on a 12 year old Verado that's having running issues for $22 each is smart money IMO.
very cheap insurance on that vintage motor.
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