• Free shipping

  • Free help & advice

  • Hassle-free returns

  • Factory direct prices

Flash Sale now on!

FLASHSALE25

18-3147 Water Pump Impeller Kit for Mercury Alpha 1 Gen 2 200 225 250 HP | SeaSierra

Sale price $37.98 Regular price $48.00
Shipping calculated at checkout.

Worry-free returns

You may return most new, unopened items within 7 days of delivery for a full refund. We'll also pay the return shipping costs if the return is a result of our error (you received an incorrect or defective item, etc.).

You should expect to receive your refund within four weeks of giving your package to the return shipper, however, in many cases you will receive a refund more quickly. This time period includes the transit time for us to receive your return from the shipper (5 to 10 business days), the time it takes us to process your return once we receive it (3 to 5 business days), and the time it takes your bank to process our refund request (5 to 10 business days).

If you need to return an item, simply login to your account, view the order using the "Complete Orders" link under the My Account menu and click the Return Item(s) button. We'll notify you via e-mail of your refund once we've received and processed the returned item.

Delivery and Shipping

Free standard shipping on all orders under 1 KG

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: 183147
  • Brand & Manufacturer: SeaSierra
  • Category: Outboard Impeller Water Pump Repair Kit
  • Part Type: Water Pump Impeller Kit
  • Item Weight: 1.4701
  • Package Dimensions: 5.5001 x 5.4001 x 5.7001 inches

Compatibility

This kit is compatible with the following Mercury / Mariner models:

  • 200 DFI: Serial 0G590000 - 0T800999, 0T801000 - 1B504988
  • 200 DFI (3.0L)(DTS): Serial 0T980000 - 1B504988
  • 200 EFI (3.0L): Serial 0T750164 - 1B504988
  • 225 Carb (3.0L): Serial 0G760300 - 0T408999
  • 225 DFI: Serial 0G590000 - 1B504988, 0T801000 - 1B504988
  • 225 DFI (3.0L)(DTS): Serial 0T599000 - 1B504988
  • 225 EFI (3.0L): Serial 0G760300 - 1B504988, 0T801000 - 1B417701
  • 225 PRO XS DFI (3.0L): Serial 1B104549 - 1B426560
  • 225 Seapro / Marathon Carb (3.0L): Serial 0G760300 - 0T408999
  • 250 EFI (3.0L): Serial 0G760300 - 1B504988
  • 250XB EFI (3.0L): Serial 0G980600 - 0T800999
  • 3.0L EFI Seapro / Marathon: Serial 0T409000 - 0T800999

Part Numbers and Replacements

  • Replaces OEM Part Numbers: 817275Q05, 817275A5, 817275A6, 817275A4, 817275T4, 817275Q4, 817275K05, 817275A3
  • Replaces Sierra Part Number: 18-3147
  • Other Replaced Part Numbers: Mallory 9-48315, Mercruiser Stern Drive 817275K05, 817275Q05, 817275Q4, 817275T4, Mercury Marine 817275A5

Kit Components

  1. Pump Housing 817275A10
  2. Impeller 43026t2
  3. Wear Plate 8172761
  4. Water Pump Gasket 8172771
  5. Water Pump Gasket 430331
  6. CARRIER ASSEMBLY 840836A2
  7. O-RING 90011
  8. O-RING 35027
  9. O-RING 21836
  10. Seal Face
  11. Key 43037

Additional Information

  • Material: Marine grade stainless steel and rubber.
  • Installation: Complete accessories for simple installation.
  • Tip: If there is any problem with the water pump impeller rebuild kit, please contact us for assistance.
  • For: Gen II - Lower S/N D469859 & up
  • Packaging Dimensions: Weight: 1.4701, Height: 5.5001, Depth: 5.4001, Width: 5.7001
  • Superceded: Unit of Measure: EA, Item Status: A, UPC: 808282112844, Case Packaging: 1, Standard Packaging: 1, HSC: 841391, ECCN: 8413.91.9010

Payment & Security

Payment methods

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