U.S. Customers: Orders shipped from Canada may be subject to U.S. import duties, taxes, and/or tariffs as assessed by U.S. Customs and your carrier. These charges are not included in our product prices or shipping rates. You are responsible for any duties/tariffs/fees due on delivery or prior to delivery.
Packed and shipped within Canada!

Original & OEM Quality Parts

Sierra
18-6840

Outboard Alternator - 18-6840 - 47-6840F1

LSN 47-6840 MPN 18-6840 UPC 808282310943 MFR Sierra
Express
ON, Warehouse

"Express" items are automated and typically shipped out next available business day and delivered within 4 day.
In Stock
$638.96
Canadian Dollars
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These all NEW replacement alternators meet OEM specs and meet or exceed OEM output for guaranteed performance. Fans, pulleys and hardware are plated to resist corrosion and special marine flame arrestor screens eliminate open sparks which can cause explosions and fire. Wiring harnesses are supplied as required by application for ease of installation. All alternators are fully backed by the Sierra warranty.See Sierra's catalog for current application information.

Part #:47-6840
Manufacturer:SIERRA
Manufacturer Part #:18-6840
UPC:808282310943
Order In Multiples Of:1
FitsMercury
OEM #Mercury 50-897755T, 897755T
TypeNew
Fits withMercury
OEM NumberMercury 50-897755T, 897755T

Variations
47-6844Outboard Alternator
47-6960Outboard Alternator
Northern Marine Canada
Our products are shipped from Canada!
Parts Warehouse:
Toronto, Ontario, Canada
Head Office:
Kingston, Ontario

About Us

Northern Marine is a Canadian supplier of OEM and premium aftermarket marine and RV parts and accessories. We focus on quality, accurate listings, and dependable fulfillment so you can maintain, repair, and outfit your boat or RV with confidence.

Our goal is simple: get you the right parts, shipped fast, with straightforward service you can count on.