My Account
Shopping Cart

Shopping Cart

0 items in your Cart
View Cart
Subtotal
Track
My Order

Sierra 18-3054 Water Pump Impeller for Mercury Outboard 3.5-9.8 HP

Manufacturer

Picture for manufacturer Sierra

Part Number

118-3054
9 reviews
Sale Price

$17.85

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 18-3054 is a premium neoprene water pump impeller featuring 6 fins, designed specifically for Mercury and Mariner outboard motors ranging from 3.5 to 9.8 horsepower. Sierra high-quality engine parts are designed to meet OEM specifications, ensuring reliable performance and proper cooling system operation for your marine engine.

Key Specifications:

  • Inner Diameter: 0.438 inches
  • 6 blades (teeth)
  • Neoprene construction for durability and chemical resistance
  • Direct OEM replacement quality

Replaces OEM Part Numbers:

  • Mercury Marine: 47-89980, 47-68988, 47-89980B
  • GLM: 89800
  • Mallory: 9-45304

This impeller is a critical component of your outboard motor's cooling system, circulating water through the engine to prevent overheating. Regular impeller replacement is essential for maintaining optimal engine performance and preventing costly damage. Sierra offers quality aftermarket marine parts backed by comprehensive warranty coverage for reliable, long-lasting service.

Great site and prices.

Great price

Nice and easy

Quick & Easy!

1st time buyer, hope its a full set of springs and fast shipping

Very fast delivery

VERY FAST SERVICE

Good

Muy bueno

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