My Account
Shopping Cart

Shopping Cart

0 items in your Cart
View Cart
Subtotal
Track
My Order

Sierra 18-72510 Engine Coupler to Flywheel Stud Kit for MerCruiser

Manufacturer

Picture for manufacturer Sierra

Part Number

118-72510
9 reviews
Sale Price

$11.44

2 left at this price

delivery box

Usually delivered within 2 days

Check out with

ApplePay
Authorize Seller Badge
No Hassle Returns

No Hassle Returns

Live-in-stock inventory

Live-in-stock inventory

Fitment guaranteed

Fitment guaranteed

Product Details

The Sierra 18-72510 Engine Coupler Stud Kit is designed for MerCruiser 4-cylinder and V8 inboard/outboard engines with early style couplers from 1963 to 1986. This essential hardware kit provides secure mounting between the engine coupler and flywheel, ensuring reliable power transfer from the engine to the stern drive.

Kit Includes:

  • One (1) stud measuring 1.967 inches x 7/16-20 thread
  • One (1) heavy-duty hexagonal nut
  • One (1) washer for proper load distribution

Features:

  • Normalized steel construction for durability in marine environments
  • Precision-threaded components for secure installation
  • Designed to meet or exceed OEM specifications
  • Direct replacement for MerCruiser coupler-to-flywheel mounting applications

This stud kit is a critical component for maintaining the integrity of the connection between your engine and stern drive. The included nut and washer provide maximum clamping force while preventing damage to the flywheel and coupler assembly during installation and operation.

Fantastic site and prices

great job

nice

Great experience. Easy, quick, great price

had to email to ensure the correct product , quick reply , tks

Great customer service!

Quick shipping

Too many surveys

good

Share icon
Return Policy
Returns are easy at Boatplicity

Not happy with a purchase? No problem. We've made returning items as easy as possible. And most purchases can be returned for free for 30 days. Learn more about our Returns Policy