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Sierra 18-5741 Voltage Regulator for Mercury/Mariner Outboard Motors

Manufacturer

Picture for manufacturer Sierra

Part Number

18-5741
13 reviews
Sale Price

$126.82

In Stock (10+)

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Usually delivered within 2 days

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Product Details

The Sierra 18-5741 is a replacement voltage regulator engineered for Mercury and Mariner outboard motors equipped with a 16 Amp or 40 Amp charging system, covering model years 1989–1991. Designed to meet or exceed original equipment standards, this regulator ensures stable voltage output to protect your outboard's electrical components and charging system from damage.

Key Features:

  • Direct OEM replacement — engineered to meet or exceed original equipment specifications
  • Compatible with Mercury/Mariner outboard engines featuring 16 Amp or 40 Amp charging systems (model years 1989–1991)
  • Replaces Mercury Marine OEM part numbers 815279-1 and 815279A2
  • Also interchangeable with CDI part number 194-5279, and Mercury part numbers 12082A8, 12082A7, and 12082A1
  • UPC: 808282239992

Sierra International is a trusted name in marine aftermarket parts, offering premium-quality replacements across thousands of marine applications. The 18-5741 voltage regulator delivers reliable performance to keep your outboard's electrical system operating properly season after season.

Products specifications

Compatibility

For Mercury Engines with 16 Amp or 40 Amp Charging System Model Years 1989-91. Replaces Mercury/Mariner 815279A2815279-1.

Type

Engine Parts

Good prices and cheap shipping.

great price. hope item is as good as the price

Good to shop with.

First time shopper

Found exactly what I was looking for!

very good

ordered a hub rebulild kit and found Autoplicity to have the lowest price. Easy ordering and good communication re: when product shipped. Turnaround was satisfactory.

quick and easy to order

Product was the cheapest I could find. One other store was cheaper but did not have my product in stock. Autoplicity shipped within 2 days and the product arrived as described. I am happy with my purchase and would do business with Autoplicity again. The only thing I marked them on was that I wish they shipped within 1 day instead of 2.

Great prices. Fast Shipping. I would definitely do business again.

great prices & shipping

Very happy with the price and the shipping time. I have bookmarked the store, as I am sure I will be back again. They were one of two who had what I needed and 25% less in price.

Great Site easy to follow and fast response!

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