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Model Engine

Year

Cyl.

Distributor Number

Sierra Rotor

Mallory Rotor

153 1961-1969 4 YL486C,D (1)18-5427 9-29211
IH60,M60,PH45,134 1971-1975 4 IAY4010A 18-5427 9-29211
230,292 Chevy 1961-1969 6 YL486A,B (1)18-5427 9-29211
185,230,250,280 1962 6 IBM4110 18-5429 9-29213
229,3.8L 1980-1982 6 IBM7014,A 18-5403 9-29203
229,262 1983-1988 6 IBM7018 18-5409 9-29214
229,262 1983-1988 6 IBM7021 18-5403 9-29203
283,327,348 1961-1969 8 YL487A 18-5404-1 9-29207
185,220,230 1961-1969 8 ZD431A,YL431A (1)18-5411 9-29210
170,220,225HP,275CAD 1961-1969 8 ZD345A,B 18-5404-1 9-29207
302,351 1971-1975 8 -18-5420 -
302 1975-1978 8 IBM7007,A 18-5407 9-29201
305,350,454 1977-1982 8 IBM7011,D 18-5407 9-29201
305,350,454 1977-1982 8 IBM7013 18-5403 9-29203
305,350,454 1983-1987 8 Mallory 18-5404-1 9-29207
ALL 1987-1988 8 IDU 7801B,C B.I.D.Elec.Ign. 18-5403 9-29203

Model Engine

Year

Cyl.

Distributor Number

Sierra Rotor

Mallory Rotor

Notes:
  • (1) : Mallory Ignition Only
Refine Parts List
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Price: $6.75
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Part # 18-5403
2nd Day Air for $2 More Eligible
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Price: $5.47
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Part # 18-5404-1
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Price: $9.11
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Part # 18-5405
2nd Day Air for $2 More Eligible
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Price: $3.93
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Part # 18-5406
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Price: $7.52
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Part # 18-5407
2nd Day Air for $2 More Eligible
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Price: $6.70
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Part # 18-5408
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Price: $9.58
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Part # 18-5411
2nd Day Air for $2 More Eligible
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Hurry! Only 1 left in stock
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Price: $2.95
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Part # 18-5418
2nd Day Air for $2 More Eligible
Price: $6.58
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Part # 18-5420
2nd Day Air for $2 More Eligible
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Price: $19.12
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Part # 18-5427
2nd Day Air for $2 More Eligible
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Price: $9.82
Discontinued
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Part # 18-5429
2nd Day Air for $2 More Eligible
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(Discontinued)
Sierra
Average Customer Review for Rotor - 18-5403 - Sierra
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boatboy
by Robert from Hubbard, Ohio on May 18, 2015
Quality part
(0 of 1 people found this review helpful)
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Average Customer Review for Rotor - 18-5404-1 - Sierra
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Great
by Michael from Daphne, Alabama on June 24, 2011
Just what I needed and very quick delivery.
(0 of 1 people found this review helpful)
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Average Customer Review for Rotor - 18-5405 - Sierra
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Review for Sierra 18-5405 Rotor
by a Customer on August 12, 2009
(1 of 2 people found this review helpful)
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Average Customer Review for Rotor - 18-5406 - Sierra
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Full StarFull StarFull StarFull StarFull Star
part was perfect
by Benoit from st-Colomban, Quebec on June 13, 2016
Good
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Full StarFull StarFull StarFull StarFull Star
Great
by Dwayne from Griffin, Georgia on April 07, 2014
Great product, Great price
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Average Customer Review for Rotor - 18-5418 - Sierra
Full StarFull StarFull StarFull StarFull Star
Based On 8 Reviews | Write Review
Full StarFull StarFull StarFull StarFull Star
Perfect fit
by Nicholas from Perry, Michigan on July 19, 2016
Exactly what my 1976 Sylvan needed. Shes running like new. Thanks Guys!
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Full StarFull StarFull StarFull StarFull Star
Just What I needed
by William from Sumter, South Carolina on October 10, 2014
The rotor worked great on my 3.0L Mercruiser. I'm highly satisfied with this purchase.
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Full StarFull StarFull StarFull StarFull Star
Fit perfectly - fast delivery
by Scott from St Charles, Missouri on June 23, 2014
This item arrived very quickly and was exactly the part I needed. Received a dist cap, plugs, and wires with the order as well. Before installation, I cranked for over 30 minutes, trying everything to get my boat started. 30 minute install and the boat turned over the very first time. Great advice, fast service, and good prices.
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Full StarFull StarFull StarFull StarFull Star
great product
by David from Thunder Bay, Ontario on August 21, 2013
quality product
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merc. 224 cid/165 hp 4 cyl.
by Siah from Morehead, Kentucky on March 30, 2013
exact part match and with brass contact better quality than oem.
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Full StarFull StarFull StarFull StarFull Star
direct replacement
by Bryan from Big Lake, Minnesota on May 15, 2012
Replaced on a 89 3.0L Mercruiser. Low cost, fits, not much else to write.
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Full StarFull StarFull StarFull StarFull Star
Works fine
by Jami from Gulf Breeze, Florida on September 16, 2011
My old one was wobbly. This one is tight. Good product.
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Full StarFull StarFull StarFull StarFull Star
Review for Sierra 18-5418 Rotor
by a Customer on August 06, 2009
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