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Home Shop By Engine Parts & Anodes Engine Components Mercury 18643A5 Triangular Shape Flywheel Mount Engine Coupler Kit - 3.0L, 4.5L MPI, V6 and V8 MerCruiser Engines Made by General Motors (305 and 350 cid) with MerCruiser Alpha Sterndrives
Mercury 18643A5 Triangular Shape Flywheel Mount Engine Coupler Kit - 3.0L, 4.5L MPI, V6 and V8 MerCruiser Engines Made by General Motors (305 and 350 cid) with MerCruiser Alpha Sterndrives
Mercury

Mercury 18643A5 Triangular Shape Flywheel Mount Engine Coupler Kit - 3.0L, 4.5L MPI, V6 and V8 MerCruiser Engines Made by General Motors (305 and 350 cid) with MerCruiser Alpha Sterndrives

SKU
Sold out
$400.45 - $400.45
$400.45
$400.45
$400.45 - $400.45
$400.45
Availability Out of stock Lead Time Typically Ships in 1 to 2 Weeks In Store - Online Only - This item is stored in an external warehouse. Online orders will be shipped direct to the shipping address or available for in-store pickup typically within 1-3 days.
Unavailable for Same-Day Pickup or Local Delivery

Substitute Options

EMP 93-93203 Coupling Assembly
EMP 93-93203 Coupling Assembly $275.20 In Stock

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Triangular shaped flywheel mount engine coupler kit 18643A5 is for 3.0L (model year 1999-2016), 4.5L MPI, V6 and V8 MerCruiser engines made by General Motors (305 and 350 cid) (model year 1993-2015) with MerCruiser Alpha sterndrives. See your service or parts manual for specific applications.

Product Details

  • Manufacturer part number: 18643A5
  • For select MerCruiser Alpha engines and sterndrives
  • Fits MCM 3.0L (1999-2016), 4.5L MPI, GM
  • Includes mounting bolts, rubber bumpers and washers
  • Fits Mercury Marine MCM 3.0L (1999 & Newer), 4.5L MPI, GM V-6 & V-8 (305 & 350 cid) engines (1993 & Newer) with Alpha sterndrives with 14" flywheel, 3" crankshaft bolt pattern, 1-piece rear main seal.
  • Note if replacing original coupler with original input yoke, order 18-2175 to udate to the 18643A7 combination

Brand: Mercury

WARNING: This product MAY expose you to chemicals, which are known to the State of California to cause cancer, birth defects and/or other reproductive harm. For more information go to www.p65warnings.ca.gov

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Backorder Policy: Occasionally, due to demand or supplier delays, some items may be temporarily out of stock or non-stock items. To ensure you can still get the products you need, you can order items even when they're out of stock. Our sales team will update you with the shipping lead time. Once back in stock, we promptly ship your item, and if your order includes both in-stock and backordered items, we may split the shipment. You can cancel your backorder before shipment, and request a refund to original payment method. For any inquiries, contact us at sales@freeportmarine.com.

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