• Fast shipping

  • Free help & advice

  • Hassle-free returns

  • Factory direct prices

Flash Sale now on!

FLASHSALE26

18-3433 Water Pump Kit for Yamaha 9.9 15 hp 2/4 stroke 2 cylinders Outboard 1996-2019 | SeaSierra

Sale price $22.59 Regular price $35.00

Worry-free returns

Shop with confidence. If you’re not completely satisfied, eligible items may be returned within the return window, provided they are unused and in original packaging.


If the return is due to our error or a defective item, we’ll make it right.


Please contact us before returning any item.

Delivery and Shipping

Orders are typically processed within 1–2 business days.


U.S. orders usually arrive within 6–15 days, depending on stock location and destination.


International delivery times may vary due to customs processing.


Tracking information will be provided once your order ships.

If you have any questions, feel free to email us at info@sierramarines.com, and we’ll get back to you within 20–36 hours.

Product Details

  • SKU: 183433
  • Brand & Manufacturer: SeaSierra
  • Category: Water Pump Impeller Repair Kit
  • Part Type: Impeller Repair Kit
  • Item Weight: 0.4551
  • Package Dimensions: HEIGHT: 2.8001, DEPTH: 4.4001, WIDTH: 5.0001

Compatibility

This kit is compatible with Yamaha 9.9 15 hp 2/4 stroke 2 cylinders Outboard models from 1996 to 2019.

Part Numbers and Replacements

  • Replaces Part Numbers:
    • Yamaha: 63V-W0078-00-00, 63V-W0078-01-00, 63V-44301-00
    • Mallory: 9-48609, 9-48617
    • Sierra: 18-3410, 18-3412
  • Equivalent Kit: 18-3412 (without housing)
  • Other Replaced Part Numbers: 18-3433, 63V-W0078-02, 63V-W0078-03

Kit Components

The package includes the following items:

  1. Impeller Key (Part Numbers: NSS)
  2. Bolt (Part Numbers: 18-0256)
  3. Impeller (Part Numbers: 18-3040)
  4. Insert Cup (Part Numbers: 18-3444)
  5. Impeller Plate (Part Numbers: 18-3195)
  6. Water Seal Damper (Part Numbers: 18-1833)

Additional Information

  • Quality: The impellers are manufactured from high-quality rubber and are durable even after prolonged immersion in salt water.
  • Packaging: Highly rigid cardboard boxes and foam wool packaging ensure product safety.
  • Inquiry Service: Check your engine part number before purchasing. If unsure, contact the seller for assistance.

Payment & Security

Payment methods

  • American Express
  • Apple Pay
  • Diners Club
  • Discover
  • Google Pay
  • JCB
  • Maestro
  • Mastercard
  • PayPal
  • Union Pay
  • Visa

Your payment information is processed securely. We do not store credit card details nor have access to your credit card information.