Quicksilver by Mercury, Coupling Assy


Coupling Assy
SKU: 86605
Mfg# 18643A5
UNIT: Each
In Stock - Ships out in 1 Business Day


Quicksilver Triangular Shape Flywheel Mount Engine Coupler Kit 18643A5 - 3.0L, 4.5L MPI, V-6 and V-8 MerCruiser engines Made by General Motors (305 and 350 cid) with MerCruiser Alpha Stern Drives

Triangular shaped flywheel mount engine coupler kit 18643A5 is for 3.0L (model year 1999 through 2016), 4.5L MPI, V-6 and V-8 MerCruiser engines made by General Motors (305 and 350 cid) (model year 1993 through 2015) with MerCruiser Alpha stern drives. See your service or parts manual for specific applications. The Quicksilver brand is the leader in delivering uncompromising engine oils, parts and accessories to the marine industry for over 65 years. Quicksilver is the premier supplier of Mercury Marine original Equipment replacement engine parts, oils, and accessories, but also works to serve all original Equipment brands in the marine and powersports industries. It has earned a loyal following by providing the highest quality products that are tested through some of the most rigorous environments and testing procedures. No aftermarket company comes close to the level of research and design as Quicksilver; buying Quicksilver is buying performance, protection and peace of mind.
  • For select MerCruiser Alpha engines and stern drives
  • Produced to meet Mercury Marine original equipment manufacturer specifications to maximize the performance of your Mercury and Mariner outboard or MerCruiser stern drive
  • Country of Origin: United States
  • Weight:10.1



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The length of the warranty may vary by product, please refer to your product for the exact terms and conditions of the warranty for your purchase.


  • All returns must be recevied within 30 days of receipt of the order.
  • Manufacturer defects reported within 30 days of receipt will be supplied a pre-paid label for return shipping upon approval.
  • Please contact Go2marine LFS Marine and Outdoor for Manufacture Defects, Returns and help with Warranties.