My Account
Shopping Cart

Shopping Cart

0 items in your Cart
View Cart
Subtotal
Track
My Order

Sierra 18-3040 Marine Water Pump Impeller for Yamaha Outboard Motors

Manufacturer

Picture for manufacturer Sierra

Part Number

118-3040
6 reviews
Sale Price

$15.38

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 18-3040 is a 6-fin neoprene impeller designed for Yamaha outboard engines. Impellers are the heart of an engine's cooling system, and this premium aftermarket replacement ensures reliable water flow to prevent engine overheating.

Key Features:

  • 2-inch diameter with 1/2-inch depth and 6 neoprene fins
  • Keyed drive design for secure installation
  • Meets or exceeds original equipment specifications
  • Includes one impeller per package
  • Neoprene construction for durability and flexibility

OEM Cross-References:

  • Yamaha Outboard: 63V-44352-00-00, 63V-44352-01-00
  • Mallory: 9-45607

Compatible with Sierra water pump kits 18-3433, 18-3412, 18-3475, and 18-3479. Ideal for seasonal maintenance or as a spare for unexpected failures, ensuring you're prepared to maintain proper engine cooling and avoid costly downtime.

It was easy ordering the parts and I got them in a reasonable time and just what I ordered

Good price on an item I needed

Good experience

This was the first time I had ordered from Boatplicity, not having come across them in my previous searches for gear. As what I was looking for was a brand name product I selected purely based on price. The purchase process went seamlessly and the two items I bought showed up within a day of each other, both well within the delivery date promised. The items were well packaged and arrived undamaged, and were exactly as I had ordered and expected.

Too many surveys

Great price

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