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HP/ CID/ Model/ Liter

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Sierra Electronic Conversion Kit

Mallory Electronic Conversion Kit

2.5L 1981-1986 4 982351 18-5297 9-26900
3.0L 1982-1990 4 982351 18-5297 -
5.0L (GM) 1981-1988 8 983453 (5)18-5296-2 9-26904
5.0L (GM) 1983-1988 8 IBM-7013C (14)18-5299 -
5.0L (GM) 1979-1982 8 -18-5298 9-26903
5.0L 1991-1992 8 -18-5299 9-26902
5.7L 1982-1990 8 983453 18-5296-2 9-26904
5.7L 1982-1990 8 IBM-7013C 18-5299 -
5.8L (Ford) 1989-1990 8 -18-5299 9-26902
5.8L (Ford) 1991-1992 8 -18-5299 9-26902
7.5L 1987 8 -18-5298 9-26903
7.5L 1987-1989 8 -18-5299 9-26902
100 1972-1973 4 384720 18-5297 9-26900
100 1972-1973 4 979856 (1)18-5297 9-26900
100 1972-1973 4 980500 18-5297 9-26900
100 1972-1973 4 982351 (2)18-5297 9-26900
110 1964 4 -18-5297 9-26900
120 1965-1986 4 383581 18-5297 9-26900
120 1965-1986 4 384258 (15)18-5297 9-26900
140 1973-1989 4 980500 (1)18-5297 9-26900
140 1973-1989 4 982351 18-5297 9-26900
170 1974 8 -18-5298 9-26903
175 1975-1977 8 980902 (15)18-5298 9-26903
185 1978-1980 8 981659 18-5298 9-26903
185 1978-1980 8 982320 18-5298 9-26903
190 1974-1977 8 980902 (5)18-5298 9-26903
225 1972-1976 8 381775 18-5296-2 9-26904
230 1979-1988 8 981659 (5)18-5296-2 9-26904
230 1979-1982 8 982320 (5)18-5298 9-26903
240 1978 8 981080 (5)18-5296-2 9-26904
250 1979 8 981080 (5)18-5298 9-26903
260 1979-1982 8 981659 (5)18-5296-2 9-26904
260 1979-1982 8 982320 18-5298 9-26903
305 I.B. 1980-1982 8 981659 18-5296-2 9-26904
305 I.B. 1980-1982 8 982320 18-5296-2 9-26904
454 I.B. 1980-1982 8 981659 18-5296-2 9-26904
454 I.B. 1980-1982 8 982320 (16)18-5296-2 9-26904

HP/ CID/ Model/ Liter

Year

Cyl.

Distributor

Sierra Electronic Conversion Kit

Mallory Electronic Conversion Kit

Notes:
  • (1) : Not applicable
  • (2) : Mallory
  • (5) : Delco
  • (14) : Delco, '90 Models point ignition only
  • (15) : Prestolite, Models w/distributor cap hold down screw
  • (16) : Prestolite, Models w/distributor cap hold down spring clip
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Part # 18-5285
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Part # 18-5293-1
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OMC Sterndrive/Cobra Electronic Conversion Kits
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Part # 18-5294
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Part # 18-5299
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Sierra
Mallory and Sierra Electronic Conversion kits for OMC sterndrive/Cobra.
Average Customer Review for Sierra 18-5294 Electronic Conversion Kit
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happy
by Jason from Citrus Heights, California on April 17, 2014
Works very well.
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works good but no power increase just dont have points anymore
by Jason from Kennewick, Washington on May 14, 2016
Came on time. install quick and easy seen no increase in power or anthing like that.but not having to do points anymore is really nice would buy it again
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A few issues, but all is great
by Jesse from Durant, Oklahoma on April 16, 2016
So my previous review I gave this product a 2 because of the ring fitting to tight. I decided to change this review to a 5 star. I contacted sierra directly to see if they would sell me the magnetic ring. I wanted to buy it because it was my fault it broke. They offered me a free replacement, even though it was my fault.
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Magnetic ring broke
by Jesse from Durant, Oklahoma on April 14, 2016
Does not just "slip" over the shaft. You have to apply alot of pressure. I applied so much I broke the magnetic ring. Unsure if I have to replace the whole thing or if I can "rebuy" the magnetic ring alone. I put one on a 60 Chevy years ago. The ring slipped on just fine.
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Easy
by Glenn from Westland, Michigan on July 31, 2015
Installed in minutes and worked right away. No more messing with gaps or adjusting the points. My boat ran great for the first time in 5 years after changing or to this kit
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boatboy
by Robert from Hubbard, Ohio on May 20, 2015
Clear instructions,easy install,works well
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Elect. ignition conversion kit-Sierra
by William from Endicott, New York on June 20, 2014
Good kit, fairly easy install, had to modify mounting holes to get proper clearance, also had to modify rotor so it would seat, but it works like a charm. Fast service also, great job Iboats.
(0 of 1 people found this review helpful)
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Electronic conversion kit
by David from Hammond, New York on September 28, 2013
15 minute install and the motor runs perfectly, no more points to set and replace every year! Great product for my 42 year old mercruiser 120 hp
(1 of 1 people found this review helpful)
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Great
by Brian from Export, Pennsylvania on May 12, 2012
Easy to install and useful instructions. The set up worked great. The boat fired up right away and its a nice clean set up.
(1 of 1 people found this review helpful)
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easy to instal and works great
by Jill from Indianapolis, Indiana on November 06, 2011
Installed it at the beginning of summer and it has worked great ever since. Pricey but seems to be worth it.
(1 of 1 people found this review helpful)
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Better than old points system
by Michael from Ledbetter, Kentucky on August 19, 2011
Made a big difference over all if set up correctly.The big gain was on top end performance with 3.0l mercruiser. WE have had boat out on water several times since i put on conversion kit with no trouble.
(3 of 3 people found this review helpful)
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Just do it
by Chad from boise, Idaho on August 05, 2011
Replaced my points set up with new points but didn't have dwell meter. Motor ran rough at idle and was sometimes difficult to start. Installed this in about 15 minutes, cause im slow, and she fired up and purred like a kitten. I dont have to worry about points adjustment again and my motor runs 100% better. Love it.
(8 of 8 people found this review helpful)
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Electronic Conversion Kit - 18-5299 - Sierra
by Tonya from Sedgwick, Kansas on July 05, 2016
I received the part sooner than expected and it was perfect..Great transaction!
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Q:
Can I replace my point with EI with a shift assist?
A:
This kit will not work with a shift assist.


Q:
So I also bought the flam thrower coil 18-5469 is this all I need or do I need some sort of resistor new to this and im not sure if I got it right my boat is 1974 140 mercruiser?
A:
Sierra confirms that you do not need anything else, but you will just need to bypass your current resistor in your system.


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