• Fast shipping

  • Free help & advice

  • Hassle-free returns

  • Factory direct prices

Flash Sale now on!

FLASHSALE26

18-3477 Water Pump Kit for Yamaha F300, LF300, F350, LF350 | SeaSierra

Sale price $47.99 Regular price $65.00

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.

Water Pump Kit for Yamaha F300, LF300, F350, LF350 | SeaSierra

Product Details

  • SKU: 183477
  • Manufacturer: SeaSierra
  • Brand: SeaSierra
  • Category: Cooling Systems / Pump/Pump Kits
  • Part Type: Water Pump, Mechanical, Replacement Components
  • Item Weight: 1.3901 pounds
  • Package Dimensions:
    • Height: 10.9001 inches
    • Depth: 2.2001 inches
    • Width: 10.2001 inches
  • Unit of Measure: EA
  • Item Status: A
  • Case Packaging: 1
  • Standard Packaging: 1
  • HSC: 841391
  • ECCN: 8413.91.9010

Compatibility

This kit is compatible with the following Yamaha Four Stroke Outboard models:

  • F300 / LF300: 2007 - 2009
  • F350 / LF350: 2007 - 2019

    Part Numbers and Replacements

    • Yamaha Part Number: 6AW-W0078-00-00
    • Equivalent Sea Sierra Part Numbers:
      • Bolt: 18-0256
      • O-Ring: 18-7483
      • Impeller: 18-8925
      • Gasket, Water Pump: 18-0452
      • Plate, Outer Wear: 18-0421
      • Key, Woodruff: 18-3028

    Kit Components

    The package includes the following items:

    1. Insert Cup (NSS)
    2. O-Ring (NSS)
    3. Dowel, Pin (NSS)
    4. Bolt (18-0256)
    5. O-Ring (18-7483)
    6. Impeller (18-8925)
    7. Gasket, Water Pump (18-0452)
    8. Plate, Outer Wear (18-0421)
    9. Key, Woodruff (18-3028)

    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.