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Distributor No.

Sierra Coil w/External Resistor

Mallory Coil w/External Resistor

1984-1988 3.8L Eng. 6 IBM-7014A 18-5434 9-29702
1973-1974 Mercury Dist. 8 B64025A2 18-5433 -
1976-1982 305,350, 454 Eng. 8 IBM-7011 18-5434 -
1983-1988 305, 350, 454 Eng. 8 IBM-7013 18-5434 -
1975-1986 Ford 302 Eng. 8 IBM-7007, A 18-5434 -
1975-1986 Ford 351, 460 Eng. 8 IBM-7008, A, B, C, 18-5434 -
1986-UP Ford 302 Eng. 8 Prestolite 18-5434 -
1987 -8 Prestolite 18-5434 -
ALL -8 Mallory 18-5434 -
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Price: $63.46
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Part # 18-5466
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Price: $60.55
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Part # 18-5469
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Price: $63.06
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Part # 18-5472
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Price: $31.07
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Part # 18-5433
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Chris-Craft Ignition Coils
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Price: $41.53
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Part # 18-5434
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Part # 18-5435
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Price: $38.77
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Part # 18-5436
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Part # 18-7648
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Price: $133.16
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Part # 18-8898
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Price: $114.11
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Part # 18-8899
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Sierra
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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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Average Customer Review for Sierra 18-5433 Ignition Coil
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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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Average Customer Review for Ignition Coil - 18-5434 - Sierra
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great service
by Reid from Gore Bay, Ontario on August 14, 2014
timely delivery
(1 of 1 people found this review helpful)
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These Guys Suck!
by Ryan from Bothell, Washington on June 26, 2013
These guys suck! buyer beware. They send me the wrong coil. Then don't respond for days so I bought the right coil. But they docked my return amount $ for opening it! They sent me the wrong part! Don't buy from this company.
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OEM ignition coil functions same as the original - pleased
by Walter from Wilmington, New York on November 05, 2011
Ignition coil works perfectly very pleased thus far.
(1 of 1 people found this review helpful)
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Average Customer Review for Coil Ignition (Bosch) - 18-5436 - Sierra
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coil
by Joel from North Benton, Ohio on May 17, 2014
ok
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Crummy coil
by Samuel from Gig Harbor, Washington on August 05, 2013
I tightened the contact nut witha nut driver with just a few pounds of force and the lug busted off. Come to find out the lugs are hollow and paper thin. I emailed cust service with no response. Bought a new name brand coil threw this away, what a piece of junk. Will not order from I Boats again.
(3 of 3 people found this review helpful)
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Q:
Can you provide the ohm rating of the internal resistor?
A:
The primary resistant ohm rating is 2.7-3.36.


Q:
Is it compatible with Volvo Penta AQ260?
A:
No it is not.


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.


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:
Will this work for volvo AQ131A engine?
A:
No this will not. You will need 18-5436.


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