This product has been discontinued.
Sierra
Sierra 18-5181 - Ignition Coil
Price: $21.95
Discontinued
Save: $1.54
(6% Off $23.49)
Part # 18-5181
(Discontinued)
Replaces OEM part #
  • OMC 584477
  • OMC 582995
  • OMC 580416
  • OMC 582370
  • OMC 582931
  • OMC 580971
  • MERCURY MARINE 802371A1
Average Customer Review for Sierra 18-5181 - Ignition Coil
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Based On 26 Reviews | Write Review
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great item
by Carlos from Keizer, Oregon on September 06, 2015
Great price
(5 of 10 people found this review helpful)
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johnson outboard parts
by Oneal from Hartselle, Alabama on November 05, 2014
very happy with parts and service. thank you, oneal
(5 of 9 people found this review helpful)
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Great 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.
(5 of 10 people found this review helpful)
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fast service
by Ronald from Duluth, Minnesota on September 27, 2014
Although I ordered the wrong coil, it came fast and returning was possible.
(5 of 8 people found this review helpful)
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Ignition 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.
(6 of 13 people found this review helpful)
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boat coils
by Larry from Pima, Arizona on November 01, 2013
I replaced the coils on my 1951 johnson tn 27 and they worked perfect.
(6 of 9 people found this review helpful)
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COIL
by Peter from Midland, Ontario on October 22, 2013
THANK YOU WILL RETURN TO SHOP LATER..
(5 of 8 people found this review helpful)
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They work
by Ron from Danielsville, Georgia on August 20, 2013
Brought a couple of old engines back to life.
(5 of 10 people found this review helpful)
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Great coils
by Scott from Corryton, Tennessee on May 27, 2013
Price was great , fast shipping !
(6 of 9 people found this review helpful)
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Satisfied
by Jean from St-Nicolas, Quebec on October 29, 2012
Ok
(6 of 13 people found this review helpful)
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Fast 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.
(5 of 8 people found this review helpful)
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Fast 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.
(5 of 8 people found this review helpful)
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25R17S 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.
(5 of 10 people found this review helpful)
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Innition 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!
(5 of 8 people found this review helpful)
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very 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
(5 of 10 people found this review helpful)
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OMC 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.
(5 of 8 people found this review helpful)
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works fine
by John from Woodbridge, Virginia on May 20, 2012
great price great product
(5 of 8 people found this review helpful)
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sierra 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
(5 of 10 people found this review helpful)
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ignition coil
by George from Lewisville, Texas on January 05, 2012
packeged well arrived promptly
(5 of 8 people found this review helpful)
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great 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.....
(5 of 10 people found this review helpful)
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Fixed 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.
(6 of 9 people found this review helpful)
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Ignition 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.
(6 of 9 people found this review helpful)
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ignition coils
by Barry from Point Roberts, Washington on June 12, 2011
both coils tested okay, installed perfectly my 3 HP is purring again
(6 of 11 people found this review helpful)
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Ignition 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.
(6 of 9 people found this review helpful)
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great fix
by Christy from Cedartown, Georgia on June 10, 2011
worked like it should
(5 of 10 people found this review helpful)
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Review 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
(16 of 20 people found this review helpful)
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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:
What are dimensions of the coil including the square hole?
A:
Sierra actually does not have that. We can only match it up by engine application.


Q:
Is this a single coil or will I need to purchase an additional coil for a 1959 Evinrude 18hp?
A:
This is a single coil.


Q:
Is this the coil to fit a 1947 Mercury KD-4S? If so do you also carry the condensers?
A:
The coil for your engine is 18-5178.


Q:
Will this work on a 1957 elgin 7.5hp?
A:
We do not have original information on that motor to confirm.


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.


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