This product has been discontinued.
Sierra
Sierra 18-5743 Voltage Regulator
Price: $149.95
Discontinued
Save: $61.04
(28% Off $210.99)
Part # 18-5743
(Discontinued)
Replaces OEM part #
  • MERCURY MARINE 883072T
  • MERCURY MARINE 815279-5
  • MERCURY MARINE 815279-3
  • MERCURY MARINE 8M0090335
  • MERCURY MARINE 8M0055014
  • MERCURY MARINE 898447T01
  • MERCURY MARINE 830250T08
  • MERCURY MARINE 830250T5
  • MERCURY MARINE 830250T3
  • MERCURY MARINE 830250A1
  • MERCURY MARINE 818903A1
For: Mercury engines with 16 amp or 40 amp charging system model/years 1992 to present


Additional Details:

Note: Black wire (not pictured) goes to engine ground.

Average Customer Review for Sierra 18-5743 Voltage Regulator
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Works as designed
by Jeff from Dover, Tennessee on May 03, 2018
Used on 4 fishing trips now, no problems, works as designed.
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Quick delivery
by Timothy from Lakeville, Minnesota on July 02, 2016
Bolted right up worked great
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Excellent Service
by Tim from Gibsons, British Columbia on October 14, 2013
The product, ordering process and tracking were all first class. Ordering from Canada, especially liked the fact that there were no surprise charges when the items were received.
(2 of 2 people found this review helpful)
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Nice to have functioning charge and tach back
by Tim from Wakefield, Quebec on July 31, 2013
After a year thinking that my tachometer had just stopped working and thinking that I had a short that was draining my battery. It's nice to have a nice new regulator and a battery that charges and a tachometer that works. Hopefully it lasts for a while at this price (compared to regulators for other boat models, not other suppliers).
(4 of 4 people found this review helpful)
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works
by a Customer from Maumelle, Arkansas on January 01, 2013
easy to install
(3 of 4 people found this review helpful)
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