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Part # 18-5433
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Part # 18-5437
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Part # 18-5443
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Part # 18-5466
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Part # 18-5469
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Part # 18-8898
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Part # 18-8899
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Sierra
Average Customer Review for Sierra 18-5433 Ignition Coil
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Based On 5 Reviews | Write Review
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perfect fit
by Wade from Lexington, South Carolina on July 30, 2014
Performs great
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1986 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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Ok
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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Love 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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sierra 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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works on my older omc 230 hp sterndrive w/elect. ign. kit installed in original distributer
by James from Austin, Texas on July 03, 2015
Works like a charm!
(1 of 1 people found this review helpful)
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Average Customer Review for Ignition Coil - 18-5443 - Sierra
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Based On 4 Reviews | Write Review
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Parts ordered
by Shawnna from Williams Lake, British Columbia on May 17, 2016
Coil was identical to what I ordered...Thank You
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Works well.
by Christopher from Cedar Park, Texas on September 12, 2013
Great description. Product performs great.
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coil
by Daniel from Edgecomb, Maine on July 18, 2011
The product was delivered in a timely manner and I had It in the boat and running , an excellent product and a great company .
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Review for Ignition Coil for Volvo Penta 3854002-7, Mercruiser 817378T, OMC Sterndrive/Cob
by a Customer on August 12, 2009
(3 of 4 people found this review helpful)
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easy to install bought with electronic ignition set
by Jason from Kennewick, Washington on May 14, 2016
No power gain or anything just worked like a coil should nothing special
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Q:
Hi, can the 18-8899 be used in place of the Indmar 817378 ? Thank you.?
A:
No, Sierra says that you should replace the Indmar 817378 with the part # 18-5443.


Q:
Can this be used to replace 3854002 looking for performance ignition coil?
A:
No.


Q:
Do you have the ohms readings for this coil? I bought one a few years back,I'm trying to determine if it has went bad.?
A:
Sierra confirms that primary is 1.25-1.38 and secondary is 9,000-12,000.


Q:
Will this work on a 1984 omc 5.7 stringer drive?
A:
We will need to know engine model number to match up correct parts for your motor.


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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