Mercruiser Electronic Conversion Kits

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HP/ Liter/ Model# :
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HP/ Liter/ Model#

CYL

Year

Serial #

Sierra Electronic Conversion Kit

[110](153cid) L[4] 1963-1966 1537370-2044033 (13)18-5297
[120](153cid) 2.5L L[4] 1964-1989 1666601-0C853255 (26)18-5297
[140](181cid) 3.0L L[4] 1968-1989 2508261-0C856558 (26)18-5297
[140](194cid) L[6] 1963 1538930-1725960 18-5294
[150](230cid) L[6] 1964-1966 1666495-2048046 18-5294
[160] (250cid) L[6] 1967-1981 2048022-5813433 18-5294
[165] (250cid) L[6] 1967-1981 2048022-5813433 18-5294
[470] (224cid) L[4] 1976-1984 4208730 - 6916778 18-5297
[485] (224cid) L[4] 1976-1984 4208730 - 6916778 18-5297
[488] (224cid) L[4] 1976-1984 4208730 - 6916778 (13)18-5297
[165] (224CID) L[4] 1985-1989 6916779 & UP (13)18-5297
[170] (224CID) L[4] 1985-1989 6916779 & UP (13)18-5297
[190] (224CID) L[4] 1985-1989 6916779 & UP (13)18-5297
[180]LX L[4] 1987-1989 0B436391 & UP 18-5297
[215] MCM & MIE Ford(302cid) V[8] 1970-1972 2781153-3563181 (13)18-5296-2
[225] MCM & MIE Ford(302cid) V[8] 1973-1974 3385721-4166999 (13)18-5296-2
[233] MCM & MIE Ford(351w cid) V[8] 1975-1977 4173000-4902304 (13)18-5299
[233] MCM & MIE Ford(351w cid) V[8] 1975-1977 4173000-4902304 (13)18-5298
[888] 188 Ford (302cid) V[8] 1971-1977 3108723-4887829 (13)18-5298
[888] 188 Ford (302cid) V[8] 1971-1977 3108723-4887829 (13)18-5296-2
[255] MCM & MIE Ford(351w cid) V[8] 1973-1974 3385721-4166999 (13)18-5296-2
[198]/ 898 MCM & MIE GM(305cid) V[8] 1977-1982 4776402-6218461 18-5296-2
[228] MCM & MIE GM(305cid) V[8] 1977-1984 4765100 - 6218461 18-5296-2
[250]GM(350cid) V[8] 1977 4768000 - 4908849 18-5296-2
[255]/ 260MCM & MIE(350cid) V[8] 1975-1982 3258728-6218461 18-5296-2
[5.7]L SKI V[8] 1985-1995 0A338533-0F775199 18-5296-2
[5.7]L SKI V[8] 1985-1995 0A338533-0F775199 18-5299
[280] TRS(350cid) V[8] 1976 4499391-4770199 18-5296-2
[330] MCM & MIE (454cid) V[8] 1977-1981 4623115-6083144 18-5296-2
[370]TRS (454cid) V[8] 1978-1985 4179554-6721527 18-5296-2
[400]TRS (454cid) V[8] 1978-1985 4179554-6721527 18-5296-2
[440]TRS (454cid) V[8] 1978-1985 4179554-6721527 18-5296-2
[460]GM TRS V[8] 1983-1986 6180970-6181046 18-5296-2

HP/ Liter/ Model#

CYL

Year

Serial #

Sierra Electronic Conversion Kit

Notes:
  • (13) : Delco
  • (26) : Delco, With conventional ign.
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Your Price: $119.64
Save: $52.71
(30% Off $172.35)
Part # 18-5299 ValueShip™ Eligible
Electronic Conversion Kit
( with screw down caps )
Recommended Coil 18-5466
Resistance Ohms 1.5
Fits: 8(cyl) AQ200A, B, AQ225A, B and All Cyl. W/ Prestolite Dist# IBM-7013A
For: Most Prestolite V-8 Distributors
Use with 18-5403 style rotor

Features:
  • Replaces point & condensers for true solid state ignition
  • Uses standard coil, cap and rotor
  • Easy to install, one-piece, 2-wire hook-up
  • Accurate to within 1/4 degree timing accuracy 0 to 6000 RPM range
  • Can be used with Flame Thrower 18-5466 & 18-5469
Your Price: $242.11
Save: $137.70
(36% Off $379.81)
Part # 18-5285 ValueShip™ Eligible
Hurry! Only 1 left in stock
No Reviews  |  Write Review  |  Ask Question

Fits: 4 Cylinder Delco Hi-Performance Electronic Distributors

Features:
  • Senses current levels in the coil and adjusts the dwell to maintain peak energy throughout the entire RPM range
  • Develops, on average, 4 times more available energy between 3000 and 5000 RPM's and twice as much plug voltage as point-type systems
  • Ignition energy is sustained and coil life is increased when peak current level is reached just prior to spark
  • More stable timing
  • Use with 18-5472 "Flame Thrower ll" Coil for Optimum Performance
Your Price: $209.73
Save: $73.43
(25% Off $283.16)
Part # 18-5286 ValueShip™ Eligible
Hurry! Only 1 left in stock
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Recommended Coil 18-5472
Resistance Ohms 0.6
Fits: 6 Cylinder Delco Hi-Performance Electronic Distributors

Features:
  • Senses current levels in the coil and adjusts the dwell to maintain peak energy throughout the entire RPM range
  • Develops, on average, 4 times more available energy between 3000 and 5000 RPM's and twice as much plug voltage as point-type systems
  • Ignition energy is sustained and coil life is increased when peak current level is reached just prior to spark
  • More stable timing
  • Use with 18-5472 "Flame Thrower ll" Coil for Optimum Performance
Your Price: $260.51
Save: $22.65
(7% Off $283.16)
Part # 18-5288 ValueShip™ Eligible
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Recommended Coil 18-5472
Resistance Ohms 0.6
Fits: Most Prestolite V-8 Hi-Performance Electronic Distributors with snap down cap.

Features:
  • Senses current levels in the coil and adjusts the dwell to maintain peak energy throughout the entire RPM range
  • Develops, on average, 4 times more available energy between 3000 and 5000 RPM's and twice as much plug voltage as point-type systems
  • Ignition energy is sustained and coil life is increased when peak current level is reached just prior to spark
  • More stable timing
  • Use with 18-5472 "Flame Thrower ll" Coil for Optimum Performance
Your Price: $228.63
Save: $134.33
(37% Off $362.96)
Part # 18-5289 ValueShip™ Eligible
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Recommended Coil 18-5472
Resistance Ohms 0.6
Fits: Most Prestolite V-8 Hi-Performance Electronic Distributors with screw down cap.

Features:
  • Senses current levels in the coil and adjusts the dwell to maintain peak energy throughout the entire RPM range
  • Develops, on average, 4 times more available energy between 3000 and 5000 RPM's and twice as much plug voltage as point-type systems
  • Ignition energy is sustained and coil life is increased when peak current level is reached just prior to spark
  • More stable timing
  • Use with 18-5472 "Flame Thrower ll" Coil for Optimum Performance
Your Price: $227.40
Save: $135.56
(37% Off $362.96)
Part # 18-5290 ValueShip™ Eligible
No Reviews  |  Write Review  |  Ask Question

Recommended Coil 18-5472
Resistance Ohms 0.6
Fits: Most Mallory YL or YD 8 cylinder Hi-Performance Electronic Distributors with clockwise and counter clockwise rotation.

Features:
  • Senses current levels in the coil and adjusts the dwell to maintain peak energy throughout the entire RPM range
  • Develops, on average, 4 times more available energy between 3000 and 5000 RPM's and twice as much plug voltage as point-type systems
  • Ignition energy is sustained and coil life is increased when peak current level is reached just prior to spark
  • More stable timing
  • Use with 18-5472 "Flame Thrower ll" Coil for Optimum Performance
OMC Sterndrive/Cobra Electronic Conversion Kits
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Your Price: $147.01
Save: $63.52
(30% Off $210.53)
Part # 18-5294 ValueShip™ Eligible
Electronic Conversion Kit
Recommended Coil 18-5469
Resistance Ohms 3.0
Fits: 6 Cyl. Delco distributors

Features:
  • Replaces point & condensers for true solid state ignition
  • Uses standard coil, cap and rotor
  • Easy to install, one-piece, 2-wire hook-up
  • Accurate to within 1/4 degree timing accuracy 0 to 6000 RPM range
  • Can be used with Flame Thrower 18-5466 & 18-5469
Use With:
  • 18-5466: Hi-Performance Ignition Coil
  • 18-5469: Hi-Performance Ignition Coil
Your Price: $149.23
Save: $33.93
(18% Off $183.16)
Part # 18-5295 ValueShip™ Eligible
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Recommended Coil 18-5469
Resistance Ohms 3.0
Fits: Most 4 Cyl. Prestolite distributors ( except IBM 7026 )
For: Onan, Universal, Waukesha, Wisconsin

Features:
  • Replaces point & condensers for true solid state ignition
  • Uses standard coil, cap and rotor
  • Easy to install, one-piece, 2-wire hook-up
  • Accurate to within 1/4 degree timing accuracy 0 to 6000 RPM range
  • Can be used with Flame Thrower 18-5466 & 18-5469
Your Price: $118.36
Save: $48.82
(29% Off $167.18)
Part # 18-5297 ValueShip™ Eligible
For: 4 Cyl. GM

Features:
  • Replaces point & condensers for true solid state ignition
  • Uses standard coil, cap and rotor
  • Easy to install, one-piece, 2-wire hook-up
  • Accurate to within 1/4 degree timing accuracy 0 to 6000 RPM range
  • Can be used with Flame Thrower 18-5466 & 18-5469
Your Price: $118.24
Save: $56.24
(32% Off $174.48)
Part # 18-5298 ValueShip™ Eligible
No Reviews  |  Write Review  |  Ask Question
Electronic Conversion Kit
( with snap down caps )
For: Most Prestolite V-8 Distributors
Recommended Coil 18-5466
Resistance Ohms 1.2

Features:
  • Replaces point & condensers for true solid state ignition
  • Uses standard coil, cap and rotor
  • Easy to install, one-piece, 2-wire hook-up
  • Accurate to within 1/4 degree timing accuracy 0 to 6000 RPM range
  • Can be used with Flame Thrower 18-5466 & 18-5469
Your Price: $121.79
Save: $89.62
(42% Off $211.41)
Part # 18-5296-2D ValueShip™ Eligible
No Reviews  |  Write Review  |  Ask Question
  • Replaces points & condensers for true solid state ignition.
  • Uses standard coil, cap and rotor.
  • Easy to install, one-piece, 2-wire hook-up.
  • Accurate to within 1/4° timing accuracy 0 to 6000 RPM range.
  • Can be used with Flame Thrower coils 18-5466 & 18-5469.
  • Recommended Coil 18-5466
  • Resistance Ohms 1.5
Your Price: $120.18
Save: $64.35
(34% Off $184.53)
Part # 18-5296-2 ValueShip™ Eligible
  • Replaces points & condensers for true solid state ignition.
  • Uses standard coil, cap and rotor.
  • Easy to install, one-piece, 2-wire hook-up.
  • Accurate to within 1/4° timing accuracy 0 to 6000 RPM range.
  • Can be used with Flame Thrower coils 18-5466 & 18-5469.
  • Recommended Coil 18-5466
  • Resistance Ohms 1.5
Sierra
Full StarFull StarFull StarFull StarFull Star Based On 1 Review | Write Review
Full StarFull StarFull StarFull StarFull StarElectronic 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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Average Customer Review for Sierra 18-5294 Electronic Conversion Kit
Full StarFull StarFull StarFull StarFull Star Based On 1 Review | Write Review
Full StarFull StarFull StarFull StarFull Starhappy
by Jason from Citrus Heights, California on April 17, 2014
Works very well.
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Full StarFull StarFull StarFull StarHalf Star Based On 11 Reviews | Write Review
Full StarFull StarFull StarFull StarEmpty Starworks 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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Full StarFull StarFull StarFull StarFull StarA 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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Full StarFull StarEmpty StarEmpty StarEmpty StarMagnetic 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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Full StarFull StarFull StarFull StarFull StarEasy
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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Full StarFull StarFull StarFull StarEmpty Starboatboy
by Robert from Hubbard, Ohio on May 20, 2015
Clear instructions,easy install,works well
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Full StarFull StarFull StarFull StarEmpty StarElect. 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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Full StarFull StarFull StarFull StarFull StarElectronic 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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Full StarFull StarFull StarFull StarFull StarGreat
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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Full StarFull StarFull StarFull StarFull Stareasy 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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Full StarFull StarFull StarFull StarFull StarBetter 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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Full StarFull StarFull StarFull StarFull StarJust 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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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.
Q:
What distributor does this fit? I have a SAE J1171 D3JL-12100 C?
A:
This will work on multiple applications, however this will not work on your distributor.
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