Mariner Ignition Coils

Your Price: $68.82
Save: $39.60
(36% Off $108.42)
Part # 18-5178 ValueShip™ Eligible
Replaces OEM part #
  • MERCURY MARINE 398-173
  • MERCURY MARINE 398-716
Your Price: $63.99
Save: $11.26
(14% Off $75.25)
Part # 18-5180 ValueShip™ Eligible
Replaces OEM part #
  • MERCURY MARINE 392-825101T
Fits:
Mercury / Mariner
  • 40/45/50/ 4-stroke
Your Price: $17.35
Save: $17.13
(49% Off $34.48)
Part # 18-5181 ValueShip™ Eligible
Replaces OEM part #
  • OMC 584477
  • OMC 582995
  • OMC 580416
  • OMC 582370
  • OMC 582931
  • OMC 580971
  • MERCURY MARINE 802371A1
Your Price: $87.73
Save: $4.36
(4% Off $92.09)
Part # 18-5182 ValueShip™ Eligible
Hurry! Only 1 left in stock
No Reviews  |  Write Review  |  Ask Question
Replaces OEM part #
  • MERCURY MARINE 823033
Fits:
Mercury / Mariner
  • 2.5 / 3 / 3.3 HP
Your Price: $95.19
Save: $4.80
(4% Off $99.99)
Part # 18-5185 ValueShip™ Eligible
Hurry! Only 1 left in stock
No Reviews  |  Write Review  |  Ask Question
Replaces OEM part #
  • MERCURY MARINE 16064A1
Fits:
Mercury / Mariner
  • 4 / 5 HP
Your Price: $28.83
Save: $14.93
(34% Off $43.76)
Part # 18-5186 ValueShip™ Eligible
Replaces OEM part #
  • CHRYSLER FORCE 339-7370A13 / 339-7370B13 / 339-832757B4
  • MERCURY MARINE 339-832757A4
  • MERCURY MARINE 339-832757L4
Your Price: $117.02
Save: $47.28
(28% Off $164.30)
Part # 18-5187 ValueShip™ Eligible
No Reviews  |  Write Review  |  Ask Question
Replaces OEM part #
  • MERCURY MARINE 339-85699A1
Fits:
Mariner
  • 200 DFI, 225 DFI, V135 DFI (2.5L), V150 (2.5L)
Mercury
  • 3.0 DFI
Your Price: $31.07
Save: $14.72
(32% Off $45.79)
Part # 18-5433 ValueShip™ Eligible
Replaces OEM part #
  • MERCURY MARINE 392-806529A1
  • MERCURY MARINE 38547
  • MERCURY MARINE 32193A2
  • MERCURY MARINE 898253T24
  • MERCURY MARINE 26433
  • MERCURY MARINE 33205
  • MERCURY MARINE 32193
  • CRUSADER 37068
  • OMC 915735 For: 3.0L ( 1991 & up ), 5.7 EFI ( 1996 & up ) and 7.4 L EFI ( 1995 & up )
  • Uses External Resistor
Fits:
  • Atomic Four w/resistor (1969-70)
  • Super Sabre (1948-70)

Use With:

  • 18-5469: Hi-Performance Ignition Coil
Sierra
Average Customer Review for Ignition Coil - 18-5180 - Sierra
Full StarFull StarFull StarFull StarFull Star Based On 1 Review | Write Review
Full StarFull StarFull StarFull StarFull StarIgnition Coil
by Stacy from Barlow, Kentucky on June 21, 2013
Was exactly what we needed. Thanks.
(0 of 1 people found this review helpful)
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Average Customer Review for Sierra 18-5181 - Ignition Coil
Full StarFull StarFull StarFull StarFull Star Based On 26 Reviews | Write Review
Full StarFull StarFull StarFull StarFull Stargreat item
by Carlos from Keizer, Oregon on September 06, 2015
Great price
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Full StarFull StarFull StarFull StarFull Starjohnson outboard parts
by Oneal from Hartselle, Alabama on November 05, 2014
very happy with parts and service. thank you, oneal
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Full StarFull StarFull StarFull StarFull StarGreat Product
by Brandi from Dodge City, Kansas on October 07, 2014
We will definitely be ordering from you again. The product came in on time and had no problems. Very happy with the service.
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Full StarFull StarFull StarFull StarEmpty Starfast service
by Ronald from Duluth, Minnesota on September 27, 2014
Although I ordered the wrong coil, it came fast and returning was possible.
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Full StarFull StarFull StarFull StarFull StarIgnition coil for 73 Johnson 6hp
by Harv from Eagan, Minnesota on September 03, 2014
The new coil was correct. No wire modifications were necessary. I have good strong spark again! Replaced a cracked original coil.
(1 of 1 people found this review helpful)
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Full StarFull StarFull StarFull StarFull Starboat coils
by Larry from Pima, Arizona on November 01, 2013
I replaced the coils on my 1951 johnson tn 27 and they worked perfect.
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Full StarFull StarFull StarFull StarFull StarCOIL
by Peter from Midland, Ontario on October 22, 2013
THANK YOU WILL RETURN TO SHOP LATER..
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Full StarFull StarFull StarFull StarFull StarThey work
by Ron from Danielsville, Georgia on August 20, 2013
Brought a couple of old engines back to life.
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Full StarFull StarFull StarFull StarFull StarGreat coils
by Scott from Corryton, Tennessee on May 27, 2013
Price was great , fast shipping !
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Full StarFull StarFull StarFull StarFull StarSatisfied
by Jean from St-Nicolas, Quebec on October 29, 2012
Ok
(1 of 1 people found this review helpful)
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Full StarFull StarFull StarFull StarFull StarFast shipping and EZ to order with IBOATS.com
by Kevin from Oakbrook Terrace, Illinois on August 21, 2012
They are a perfect fit for my 1956 Evinrude 15HP engine.
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Full StarFull StarFull StarFull StarFull StarFast shipping and EZ to order with IBOATS.com
by Kevin from Oakbrook Terrace, Illinois on August 21, 2012
Tested both coils, installed and running like new on my 1956 Evrinrude engine.
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Full StarFull StarFull StarFull StarFull Star25R17S Johnson
by Scott from Farmersburg, Iowa on August 12, 2012
Coils fit just fine. No problem getting the "gap" set. Motor runs like a top, first time in awhile. Had purchased Johnson OEM coils from another place before I got these here. Wouldn't fit, different part number on the coil, any other parts I need will be ordered from here.
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Full StarFull StarFull StarFull StarFull StarInnition Coil
by Robert from Tiverton, Ontario on August 05, 2012
I bought this kit for our 1952 3 HP Evinrude. Everything fit good. The little motor is running again. Very fast shipping to Canada!
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Full StarFull StarFull StarFull StarFull Starvery nice coils
by Steven from Geneva, Nebraska on July 25, 2012
these coils fit perfectly and tested both just to be sure before install. they tested perfect. thanks iboats for another great product
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Full StarFull StarFull StarFull StarFull StarOMC coils
by Steven from Kenosha, Wisconsin on June 27, 2012
I was very pleased with the order. The coils arrived very quickly and the motor was running 1 hour after they arrived. They fit perfectly on the 1958 Evinrude 7.5 and it purrs like a kitten.
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Full StarFull StarFull StarFull StarFull Starworks fine
by John from Woodbridge, Virginia on May 20, 2012
great price great product
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Full StarFull StarFull StarFull StarFull Starsierra products
by Jack from West Columbia, Texas on April 26, 2012
coils worked great-an exact match for my OEM coils.thanks for the prompt shipment
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Full StarFull StarFull StarFull StarFull Starignition coil
by George from Lewisville, Texas on January 05, 2012
packeged well arrived promptly
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Full StarFull StarFull StarFull StarFull Stargreat price, good quality
by Mike from Winnipeg, Manitoba on November 20, 2011
Excellent price and quality...Now if they would only make them for my Johnson seahorse HD 25.....
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Full StarFull StarFull StarFull StarFull StarFixed the problem perfectly!
by Samuel from Hannon, Ontario on September 12, 2011
The old coils were totally shot on my evinrude 1959 3 hp, replaced them with the new ones from Iboats with a new set of points and it runs beautiful again.
(1 of 1 people found this review helpful)
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Full StarFull StarFull StarFull StarFull StarIgnition coil by Sierra
by Peter from Lombard, Illinois on August 08, 2011
I recently purchased 2 coils to be used for my 18 Hp Evinrude and ended up not needing them at this time. I was very satisfied with the purchase process and the speed of delivery.
(1 of 1 people found this review helpful)
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Full StarFull StarFull StarFull StarFull Starignition coils
by Barry from Point Roberts, Washington on June 12, 2011
both coils tested okay, installed perfectly my 3 HP is purring again
(1 of 1 people found this review helpful)
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Full StarFull StarFull StarFull StarFull StarIgnition coils
by Tim from Lakeside, Ontario on June 10, 2011
My purchase was shipped promptly and was packaged well. Competitively priced too, even with shipping, duty and taxes to Canada.
(1 of 1 people found this review helpful)
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Full StarFull StarFull StarFull StarFull Stargreat fix
by Christy from Cedartown, Georgia on June 10, 2011
worked like it should
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Full StarFull StarFull StarFull StarFull StarReview for Ignition Coil for Johnson/Evinrude 582995 584477, Mercury/Mariner 802371A1, GLM
by a Customer on January 15, 2009
Perfect match to 40yr old OEM parts. Delivery was on-time around 3:30 PM, had the distributor system torn down and put back together in less than an hour (I am a forester, not a mechanic)pulled the cord and found out just how HOT these coils are (note: never pull the cord while touching the plug wires HOT! HOT! HOT!) - Thanks, Mike
(11 of 12 people found this review helpful)
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Average Customer Review for Sierra 18-5186 - Ignition Coil
Full StarFull StarFull StarFull StarHalf Star Based On 20 Reviews | Write Review
Full StarFull StarFull StarFull StarFull StarReplacing coils as preventative maintenance
by Tim from Winston Salem, North Carolina on June 15, 2016
Good product, I bought and replaced all 6 for my 30 yr old Mercury XR2 Blackmax, as preventative maintenance. NO instructions included so I don't know what the extra cylinder included was for. I also purchased the ignition wire set 18-5225 and made my own plug wires. My engine runs great as it did before. I did keep the old original coils just in case. Fast service and convenient shopping for me.
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Full StarFull StarFull StarFull StarFull StarIgnition coil for Merc 100
by William from Sebastian, Florida on March 19, 2016
Arrived as expected. Will install next week!
(0 of 1 people found this review helpful)
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Full StarFull StarFull StarFull StarFull StarYep, it sparks!
by George from Albuquerque, New Mexico on September 30, 2015
Wish it had solved my problematic engine. Now I have another spare part. Another post said his did not come with the nuts for the screw terminals. Mine did come with them?
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Full StarFull StarFull StarFull StarFull Star40hp mariner coil
by Lewis from McComb, Mississippi on September 25, 2015
Well satisfied with fast service and quality product
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Full StarFull StarFull StarFull StarFull StarGood stuff!!
by Howard from Eupora, Mississippi on September 22, 2015
i ordered coils three times from two other suppliers. They arrived in bubble envelopes and the parts were broken. Not so here! Arrived quickly, well packed and got my big old mercury screaming again! Iboats and only iboats.
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Full StarFull StarFull StarFull StarFull StarPerfect fit
by Dave from Fennville, Michigan on August 24, 2015
Perfect fit and function in my motor.
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Full StarFull StarFull StarFull StarFull Starawesome product fast shipping but running great
by Dean from Sugarloaf, California on May 20, 2015
coils worked awesome but running great
(1 of 1 people found this review helpful)
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Full StarFull StarFull StarFull StarFull StarThanks iboats
by Johnna from Burleson, Texas on May 09, 2015
I will never use another boat supply company as long as iboats is around. I'm an online buyer and the website design is flawless please don't change anything unless it's adding even more details about the part your looking for
(2 of 2 people found this review helpful)
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Full StarFull StarFull StarFull StarFull Starcoils
by James from St. Charles, Missouri on October 18, 2013
everything was GREAT service and product
(2 of 3 people found this review helpful)
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Full StarEmpty StarEmpty StarEmpty StarEmpty Starignition coil-sierra
by James from Casper, Wyoming on August 13, 2013
i replaced the coil and still get no spark for cyl. number 1,do u have anything else i could try? i dont know if the coil is defective
(5 of 6 people found this review helpful)
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Full StarFull StarFull StarFull StarFull StarIgnition coil
by Molly from Garner, North Carolina on August 11, 2013
Parts worked just great. Happy to be back in the water!
(1 of 1 people found this review helpful)
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Full StarEmpty StarEmpty StarEmpty StarEmpty StarDisappointed
by David from Dighton, Kansas on June 07, 2013
I got the new coil and the threads were different than the original coil. I live in a small town and there was no place open to get new nuts so I tried using the old ones anyway, broke one of the terminals off. My fault, shouldn't have tried it. It would be nice to send new nuts if the threads are different.
(2 of 4 people found this review helpful)
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Full StarFull StarFull StarFull StarFull Starignition coil
by Donald from Douglas, Georgia on November 09, 2012
Just what I needed.Thanks for the fine quality parts that yall have to offer.
(2 of 2 people found this review helpful)
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Full StarFull StarFull StarFull StarEmpty Starcoil shiping
by Robert from Dell Rapids, South Dakota on August 15, 2012
I thank you for the fast shipment,which gave me more fishing time
(1 of 1 people found this review helpful)
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Full StarFull StarFull StarFull StarFull Stargreat service
by Nelson from Drummonds, Tennessee on May 13, 2012
you have great pricesand fast service for your products,
(1 of 1 people found this review helpful)
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Full StarFull StarFull StarFull StarEmpty StarCoil
by Ronald from Phillipsburg, Missouri on March 17, 2012
Good service
(2 of 2 people found this review helpful)
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Full StarFull StarFull StarFull StarFull Stargood
by Vicki from Lakeland, Florida on August 22, 2011
good part
(1 of 1 people found this review helpful)
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Full StarFull StarFull StarFull StarFull StarIgnition coil
by C from Ashland, New Hampshire on August 18, 2011
Received in a timely fashion.
(2 of 2 people found this review helpful)
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Full StarFull StarFull StarFull StarFull StarGreat part - Works on older 7.5hp Mercruiser
by Jeff from Covington, Washington on July 06, 2011
I took a chance on this one, and it works great. Had a hard time finding my exact replacement number but this one did just fine.
(2 of 8 people found this review helpful)
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Full StarFull StarFull StarFull StarFull Starred
by Kevin from Spanish Fort, Alabama on March 25, 2011
Got to have fire
(1 of 7 people found this review helpful)
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Average Customer Review for Sierra 18-5433 Ignition Coil
Full StarFull StarFull StarFull StarHalf Star Based On 5 Reviews | Write Review
Full StarFull StarFull StarFull StarFull Starperfect fit
by Wade from Lexington, South Carolina on July 30, 2014
Performs great
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Full StarFull StarFull StarFull StarFull Star1986 Mercruiser 3.0ltr ignition coil(Sierra)
by D. from Barrie, Ontario on August 04, 2013
Great price, quick and easy to instal. Two thumbs up.
(2 of 3 people found this review helpful)
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Full StarFull StarEmpty StarEmpty StarEmpty StarOk
by Zach from West Valley, Utah on September 07, 2012
I have a 1974 302 Ford. This ignition coil didn't work for my engine.
(1 of 3 people found this review helpful)
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Full StarFull StarFull StarFull StarFull StarLove this site
by Stephen from Laurel, Maryland on August 22, 2011
I have ordered from this site a few times and I always get the right part in a timely fashion. Awesome site.
(0 of 1 people found this review helpful)
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Full StarFull StarFull StarFull StarFull Starsierra coil
by Richard from Rushville, Indiana on June 03, 2011
Great product and thanks to Iboats I received it quickly. Thanks
(1 of 2 people found this review helpful)
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Q:
Will this work for a 1973 motor?
A:
It seems it is after 1973 but we can only confirm by knowing your HP and serial number. If you can provide that we can take a look.
Q:
Hi do you know if that product is for 2006 Mercury 2.5hp 4s?
A:
It will entirely depend on your serial number. We can only match it up with that. So call us at the number at the top of the page with the serial number and we can confirm.
Q:
Which spark plug wire goes with this coil for a 1981 2hp Evinrude?
A:
This is the correct coil for your engine. For your engine we only have the OEM version of the wire which is part number 0580146.
Q:
I want to use these in an Old fifties Seabee will they work they look like the right part my question is output of spark Voltage?
A:
Sierra does not have the output of spark voltage. They can only match up by specific application. Feel free to contact us at the number on the top of the page for more assistance.
Q:
What is the ohms reading on the secondary winding?
A:
The secondary winding to ground is about 300 ohms.
Q:
Would this be the same foe a 2 stroke?
A:
Not according to our notes from Sierra, but we can find the correct OEM number and cross reference it by your serial number. Contact us at the number at the top of the page with that info.
Q:
Can this replace3364409a?
A:
I don't cross reference that number. We only cross reference the following OEM numbers: 339-832757L4, 339-832757A4, 339-832757B4, 339-7370B13, 339-7370A13. If you need further assistance give us a call at 1-800-914-1123.
Q:
Does this replace 339-5288 ?
A:
No this does not cross reference with that OEM number. The number may have been replaced but we would need a serial number to verify.
Q:
What is the ohms reading on a new coil mine has 240ohms and the old one i'm replacing is 840ohms and the shop manual states the reading should be 800-1000ohms so is my new one bad?
A:
Yes if it's reading outside that then you might have a defective coil.
Q:
Will this work for a 15 hp Gamefisher Model # 225581503 ?
A:
This will not work. You need 116-2379K2.
Q:
Is this interchangable with coil 332-4895? inline 6 150hp 1973 model?
A:
No this does not cross reference. You need OEM number 332-4895T2 for your motor.
Q:
What is that little cylinder that comes with the coil?
A:
Sierra said that depending on the application you might need to use it. You would take off the housing of the ignition coil and put it in there with a screw though it. They didn't have a name for it though.
Q:
How many ohms internal resistance does the coil have?
A:
The technicians at Sierra have said that it is an external resistance coil, and that it has no internal ohm resistance. If you have any further questions contact us at the number at the top of the page.
Q:
My 1985 3.0 mercruiser does not have an external resistor, is this the right coil?
A:
The technicians at Sierra have affirmed that all of the 3.0 Mercruiser engines from that year should have an external resistor. If yours does not, then you will want to consult a Mercury dealer for guidance on what to get. Because all of the information we have on this motor points to this ignition coil working for it.
Q:
Is this the right coil for a 1996 ,4.3 v6 190 hp?
A:
Since it is an aftermarket part the way we cross reference varies. We would need to know manufacturer and model/serial number. Contact us at the number at the top of the page and we can look into it further.
Q:
I have a 1977 mercruiser 151 cu in. 120hp 4 cylinder engine. It does not have any resister between the distributor and the coil, therefore, I must have a resitor wire and not an external resistor. Is this the right coil for this application.?
A:
No this would not be correct. This is for an external resistor. We would need serial number to identify correct one at this point. Contact us at the number at the top of the page and we can look into it.
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