This product has been discontinued.
Sierra
Engine Coupler - 18-2171 - Sierra
Price: $228.95
Discontinued
Save: $70.04
(23% Off $298.99)
Part # 18-2171
(Discontinued)
This item is found in the following Product Families
Replaces OEM part #
  • MERCURY MARINE 76850A2
For: All Mercruiser GM Engines, Except MR/ALPHA/BRAVO with "Triangular", 3-Bolt Coupler.
Average Customer Review for Engine Coupler - 18-2171 - Sierra
Full StarFull StarFull StarFull StarFull Star
Based On 3 Reviews | Write Review
Full StarFull StarFull StarFull StarFull Star
Engine coupler
by Ron from Gardnerville, Nevada on July 08, 2016
Take your time and do your research. Count the splines. The splines seem to be a bit shorter with the counter bored end but it fit great otherwise.
Was this review helpful?
Full StarFull StarFull StarFull StarFull Star
coupler for 165Mercruiser
by John from Sprjing City, Tennessee on August 06, 2012
Well satisfied with this replacement part.
Was this review helpful?
Full StarFull StarFull StarFull StarFull Star
firefighter
by Francis from Edwards, Missouri on August 19, 2011
Excellent product, rapid service and receipt of part. Would reccomend you to anyone needing parts or other boat supplies
(2 of 2 people found this review helpful)
Was this review helpful?
This product ships in 1 business day.
Add to Cart and enter your Postal Code to determine the shipping charges.
Most products and orders leave our warehouse in 1 business day. However, select items may take more processing time. Alaska and Hawaii orders please add 1 additional warehouse processing day.
Standard Shipping Policies