My Account
Shopping Cart

Shopping Cart

0 items in your Cart
View Cart
Subtotal
Track
My Order

Sierra 18-3593 Marine Water Pump for GM 4 & 6 Cylinder Engines

Manufacturer

Picture for manufacturer Sierra

Part Number

118-3593
5 reviews
Sale Price

$104.44

2 left at this price

delivery box

Usually delivered within 2 days

free shipping

FREE SHIPPING

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 18-3593 is a high-quality replacement circulating water pump designed for late model GM-based 4 and 6 cylinder inline marine engines. This bi-directional pump features a durable cast iron body with a corrosion-resistant brass impeller and stainless steel shaft, engineered to withstand harsh marine environments. The pump is designed to meet or exceed OEM specifications and is manufactured using new castings, not remanufactured components.

Key Features:

  • Bi-directional operation for both clockwise and counterclockwise rotation
  • Cast iron construction with powder-coated finish for corrosion protection
  • Brass impeller for long-lasting performance
  • Stainless steel shaft, seal cup, and spring assembly
  • Includes water pump gasket (18-0327) for complete installation
  • Fits late model 4-cylinder GM engines requiring hose fittings

OEM Cross-Reference: Replaces MerCruiser Stern Drive part numbers 33957, 37369, 46-8M0113733, 52353, 65142, 65142A1, 814755, 880817, 884727, 884727001, F2774666, FI1100785, FI1101079, and Volvo Penta 3854017, 3858340. Also replaces Mallory 9-42605.

This water pump is essential for maintaining your MerCruiser sterndrive cooling system at peak efficiency and preventing engine overheating.

Only issue was lack of shipping confirmation, no order update and the unit showed up at my house in a full size 18 wheeler :)

easy purchase and in stock items

Very satisfied and received exact product sooner than expected

Everything is as they seem

excellent

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