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Sierra 18-45404 Water Pump Impeller for Nissan/Tohatsu 2-Stroke Outboards

Manufacturer

Picture for manufacturer Sierra

Part Number

18-45404
11 reviews
Sale Price

$39.46

In Stock (10)

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Usually delivered within 2 days

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Fitment guaranteed

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Product Details

The Sierra 18-45404 is a replacement water pump impeller engineered for Nissan and Tohatsu 2-stroke outboard motors in the 45–70 HP range. Designed to meet or exceed OEM specifications, this impeller keeps the engine cooling system operating at peak efficiency by maintaining proper water flow through the pump housing.

Key Features:

  • 6-blade impeller construction for efficient water circulation
  • Overall diameter: 60.5 mm | Shaft size: 17.3 mm | Thickness: 24.0 mm
  • Constructed from neoprene rubber compound with a hardened nylon hub for durability and flexibility
  • Resistant to saltwater corrosion and long-term immersion
  • Meets or exceeds original equipment manufacturer specifications

Compatible Models (Nissan/Tohatsu 2-Stroke):

  • NS45A2 / M45A2
  • NS50C / M50C
  • NS55B / M55B
  • NS60A / M60A
  • NS70A / NS70A2 / M70A2

OEM & Cross-Reference Part Numbers:

  • Nissan/Tohatsu OEM: 353-65021-0 / 353650210 / 353650210M
  • Mallory: 9-45404

Sierra is one of the most trusted names in the marine aftermarket industry, offering premium-quality parts engineered to withstand the demands of harsh marine environments. The 18-45404 impeller is a direct OEM-quality replacement that simplifies routine water pump maintenance on compatible Nissan and Tohatsu outboard engines.

Good price. Amazon filling ship and billing easy

Best price. Looks accredited and secure. Didn't state free shipping then added it later in process. Your shipping cost only 60¢ more than "free" shipping costing $9.95 Thanks.

very smooth and efficient web site.

So far So good. Good prices and reasonable shipping.

Easy

So far so good. Awaiting product.

I like the free shipping, found cheaper prices else where but with your free shipping it was less money!

great

easy and honest to deal with...no problems and fast shipping.

Great service and quick shipping. I beat other advertised prices for the tuner I bought by $50!

Autoplicity had the exact part I wanted at the best price upfront with no gimmicks or hidden conditions. Prompt shipping at a fair price. Simply excellent!

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