Your Price: $33.30
Save: $17.34
(34% Off $50.64)
Part # 18-5438 2nd Day Air for $2 More Eligible
Replaces OEM part #
  • CRUSADER 37068
  • MERCURY MARINE 392-805570A2
  • MERCURY MARINE 392-7803A4
  • MERCURY MARINE 392-7803
  • MERCURY MARINE 300-8M0079202
  • MERCURY MARINE 392-805570A1
Your Price: $31.07
Save: $14.72
(32% Off $45.79)
Part # 18-5433 2nd Day Air for $2 More 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 Sierra 18-5438 Ignition Coil
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Based On 14 Reviews | Write Review
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Coil
by Brian from Fisher, Minnesota on August 02, 2016
Works like it should.
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Great Product
by Gerald from London, Kentucky on July 18, 2016
Reasonably priced and customer service is second to none
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Shipping Service
by John from Grand Rapids, Michigan on June 23, 2016
Ordered two Sierra 18-5438 ignition coils on Monday June 20th and paid additional money for 2 day service so I would have them before Friday. iboats billed my PayPal account on June 20th for the full amount. I just checked today, Thursday June 23 and iboats could not confirm if they had shipped yet. They gave me an excuse that maybe Sierra did not have them in stock. This is a standard ignition coil for all 454 mercury engines. So far I rate their service well below what I would expect for an online company. What a waste of money on my part. Before ordering I would suggest you call them to get an exact ship date. Bad company.
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Not a Timely Delivery
by John from Seattle, Washington on June 12, 2014
I ordered this part six days ago (with two-day delivery) and it has not shipped yet. Also, no emails from IBoats.com about any delays.
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Great
by Kenneth from Patterson, New York on July 07, 2013
My old one was 21 years old and corroding. I ordered and got it in three days. It works fine!
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Boat stuff
by James from Gibsons, British Columbia on September 17, 2012
Arrived when promised and as ordered. Unfortunately the Mallory coil I wanted was out of stock.
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excellent
by Mark from Charlotte, North Carolina on September 04, 2012
This Ignition Coil solved my starting problem when the engine is hot. Great product at a great price.
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Perfect replacement
by William from Niskayuna, New York on August 19, 2012
Worked perfectly. Exact replacement.
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HEI Coil
by Ben from Quarryville, Pennsylvania on August 14, 2012
This was the ticket, After a year of trouble with my boat I replaced the standard coil with a HEI coil and now the boat runs great!
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Mercruiser coil
by Wayne from Greenbrier, Arkansas on July 29, 2012
Great price and fast shipping.
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coil
by John from Eagle River, Wisconsin on August 04, 2011
right price, right part
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Quick service
by Michael from Bremen, Alabama on July 27, 2011
Helpful lady on the phone
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ignition coil
by Curtis from Columbia, Missouri on July 12, 2011
you never can go wrong useing mercruiser parts
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Coil
by Ray from Fruita, Colorado on July 07, 2011
As described and fast shipping.
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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 Star
perfect fit
by Wade from Lexington, South Carolina on July 30, 2014
Performs great
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Full StarFull StarFull StarFull StarFull Star
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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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:
Is there an HEI version ?
A:
We sell aftermarket parts and this is the only version Sierra makes for this engine.


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