Your Cart

Sierra 18-217521 Engine Coupler for OMC/Volvo Penta

Manufacturer

Sierra

Picture for manufacturer Sierra

Part Number

18-217521
16 reviews
03/12/2036 12:31 AM
Sale Price

$280.33

In Stock (10+)

delivery box

Usually delivered within 2 days

free shipping

FREE SHIPPING

Add To Cart

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 18-217521 is a premium replacement engine coupler designed for marine applications. This coupler serves as a critical connection component between the engine and drive system, transferring power while allowing for slight misalignment and absorbing vibration.

Key Features:

  • Direct replacement for OMC/Volvo Penta part number 3858437
  • Engineered to OEM specifications for proper fit and performance
  • Durable construction designed to withstand marine environment conditions
  • Essential component for maintaining smooth power transfer from engine to outdrive

This engine coupler is a wear item that should be inspected regularly and replaced as needed to prevent damage to the engine and drive system. Sierra Marine offers reliable aftermarket parts that meet or exceed original equipment standards.

Thank you, easy!!

Arrived qickly and looks great haven't jnstalled yet but looks pretty straight forward

Great customer service and fast shipping thank you!

Showed inventory..good online service

Great so far

sounds too inexpensive, but hey you only live once...

Ordered these pads from another source & it was cancelled stating unavailable. Autoplicity has the same part, a bit more $ but they have the part I need and that is what counts. Thanks Autoplicity! You have my business!

Overall great experience

Easy fast thanks

It's easy ordering so far

Easy to use

great and good price

Great

It was easy.

so far so good

great product, easy install and more power. installed on a 2012 hemi ram. KNN-631561

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