My Account
Shopping Cart

Shopping Cart

0 items in your Cart
View Cart
Subtotal
Track
My Order

Sierra 18-3293 Impeller Key for Mercury, Mercruiser & Chrysler Applications

Manufacturer

Picture for manufacturer Sierra

Part Number

18-3293
13 reviews
Sale Price

$10.61

In Stock (10+)

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 18-3293 Impeller Key is a precision-machined Woodruff-style drive key designed for use with water pump impellers on Mercury, Mercruiser, and Chrysler/Force outboard and sterndrive engines. This small but critical component locks the impeller to the driveshaft, ensuring reliable raw water pump operation and proper engine cooling.

Key Features:

  • Meets or exceeds original equipment manufacturer (OEM) quality standards
  • Designed for use with the 47-43026 series long vane impeller
  • Compatible with MerCruiser Alpha One Gen II sterndrives and various large outboard applications
  • Direct replacement for Mercury/Quicksilver OEM part number 28-43037 and updated supersession 28-8M0032833

OEM Cross-Reference / Interchangeable Part Numbers:

  • Chrysler: 28-43037
  • Mercury / Quicksilver: 28-43037, 28-8M0032833
  • GLM: 11071
  • Mallory: 9-43702, 9-43720

Sierra International is a trusted name in marine replacement parts, and the 18-3293 impeller key is built to the same exacting tolerances as the OEM part it replaces, ensuring a secure fit and long service life.

It was okay. Shipping was expensive w/o discount.

Great Prices and fast shipping rates. The fuel gauge/sending unit doesn't work correctly.

I was planning on ordering a race suit, had lot of questions. The support staff were extremely knowledgeable, courteous and had answers for all my questions. Placed the order online and product shipped the next day. Very happy with the customer service and the whole shopping process in general.

Very fast and had items that I could find nowhere else.

Awesome and quick ship time. Very informative with the ship date<br> Will be doing business with them again

Ordered parts for my civic. Great site, lowest prices (trust me I looked) and great service. Will definitely buy again from them.

it was good

Great

Ordered some headlight/taillight covers for my challenger, order # 10491. The covers were a brand that I like and for a cheap price for the pair! Can't beat that! I definetly recommend them for auto accessories, I know I'll be coming back :-)

Great price, easy check out

Cheapest I could find anywhere !!!

easy website to navigate and ordering was a breeze.. Item purchased was damaged in shipping and autoplicity was all over it.. Currently wait on my replacement parts with no hassle.. Over all great service!!

Great place to buy from! any questions or emails are quickly answered AND you can't beat the price!! Will definitely be coming back to shop :)

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