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Water Pump Impeller Repair Kit – Fits Suzuki 9.9HP/15HP Outboards (Replaces 17400-93951)

Regular price $29.90
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

This Water Pump Impeller Repair Kit is designed to restore the cooling system on a range of Suzuki and Johnson/Evinrude outboards. It fits Suzuki 9.9HP and 15HP models, including 2-Stroke (DT9.9, DT15, DT15C) from 1983–1997 and 4-Stroke (DF9.9, DF15) from 1996–2011. It is also compatible with Johnson/Evinrude 9.9HP and 15HP 4-Stroke models (J10, J15) from 2002–2006.

This kit serves as a direct replacement for Suzuki part numbers 17400-93950, 17400-93951, and 17400-93960; Sierra 18-3256; and Johnson/Evinrude 5033106, 766485, and 0766485, providing a complete interchange solution.

  • Engineered for DIY installation with basic mechanical skills.
  • Features a corrosion-resistant metal alloy housing and a high-performance neoprene rubber impeller for durability.
  • Includes all essential components for a complete water pump rebuild.

Part Number Matrix

Use this matrix to confirm equivalent references across OEM and aftermarket.

Brand Part Number
Suzuki 17400-93950
Suzuki 17400-93951
Suzuki 17400-93960
Sierra 18-3256
Johnson/Evinrude 5033106
Johnson/Evinrude 766485
Johnson/Evinrude 0766485

Engine & Model Compatibility

Confirm your engine model/year in the table below.

For Suzuki models, please pay close attention to the year and any specific VIN ranges noted for precise fitment.

Brand Model Rated HP Stroke Years OEM Part No. Notes
Suzuki DT9.9 9.9 2-Stroke 1983–1987 17400-93951
Suzuki DT15 15 2-Stroke 1983–1988 17400-93951
Suzuki DT15C 15 2-Stroke 1989–1997 17400-93951
Suzuki DF9.9 9.9 4-Stroke 1996–2011 17400-93951
Suzuki DF9.9TSK8 9.9 4-Stroke 2008 17400-93951 Beginning VIN# 00992F-880001
Suzuki DF9.9TXK9 9.9 4-Stroke 2009 17400-93951 Beginning VIN# 00992F-980001
Suzuki DF9.9THX 9.9 4-Stroke 2011 17400-93951 Beginning VIN# 00993F-110001
Suzuki DF9.9TLK8 9.9 4-Stroke 2008 17400-93951 Beginning VIN# 00992F-880001
Suzuki DF9.9THXK8 9.9 4-Stroke 2008 17400-93951 Beginning VIN# 00992F-880001
Suzuki DF9.9TSK9 9.9 4-Stroke 2009 17400-93951 Beginning VIN# 00992F-980001
Suzuki DF9.9TSK10 9.9 4-Stroke 2010 17400-93951 Beginning VIN# 00993F-010001
Suzuki DF9.9RSK4 9.9 4-Stroke 2004 17400-93951 Beginning VIN# 00992F-421001
Suzuki DF9.9SK6 9.9 4-Stroke 2006 17400-93951 Beginning VIN# 00992F-680001
Suzuki DF9.9RLK7 9.9 4-Stroke 2007 17400-93951 Beginning VIN# 00992F-780001
Suzuki DF9.9RSK8 9.9 4-Stroke 2008 17400-93951 Beginning VIN# 00992F-880001
Suzuki DF9.9TLK8 9.9 4-Stroke 2008 17400-93951 Beginning VIN# 00992F-880001
Suzuki DF9.9RSK6 9.9 4-Stroke 2006 17400-93951 Beginning VIN# 00992F-680001
Suzuki DF9.9SK5 9.9 4-Stroke 2005 17400-93951 Beginning VIN# 00992F-510001
Suzuki DF9.9RLK4 9.9 4-Stroke 2004 17400-93951 Beginning VIN# 00992F-421001
Suzuki DF9.9TL 9.9 4-Stroke 2011 17400-93951 Beginning VIN# 00993F-110001
Suzuki DF15 15 4-Stroke 1996–2011 17400-93951
Suzuki DF15LK6 15 4-Stroke 2006 17400-93951 Beginning VIN# 01502F-680001
Suzuki DF15SK10 15 4-Stroke 2010 17400-93951 Beginning VIN# 01503F-010001
Suzuki DF15SK4 15 4-Stroke 2004 17400-93951 Beginning VIN# 01502F-421001
Suzuki DF15LK5 15 4-Stroke 2005 17400-93951 Beginning VIN# 01502F-510001
Suzuki DF15LK10 15 4-Stroke 2010 17400-93951 Beginning VIN# 01503F-010001
Suzuki DF15LK8 15 4-Stroke 2008 17400-93951 Beginning VIN# 01502F-880001
Suzuki DF15LK9 15 4-Stroke 2009 17400-93951 Beginning VIN# 01502F-980001

This kit is also a direct fit for the following Johnson/Evinrude 4-stroke models, which are based on Suzuki platforms.

Brand Model Rated HP Stroke Years OEM Part No.
Johnson/Evinrude J10 9.9 4-Stroke 2002–2006 5033106
Johnson/Evinrude J15 15 4-Stroke 2002–2006 5033106

Technical Specs

Product Type
Water Pump Impeller Repair Kit
Installation
DIY with basic mechanical skills
Housing Material
Metal alloy (corrosion resistant)
Impeller Material
High performance neoprene rubber
Fitting Type
Direct OEM replacement
Product Dimensions
12.0" L x 10.0" W x 4.0" H

What’s in the Box

  • 1 x Water Pump Impeller (Replaces 5033112/17400-939M0/17400-93901/18-3099)
  • 1 x Wear Plate (Replaces 5033114/17471-93902/18-3190)
  • 1 x Key (Replaces 5033113/09420-03009/17462-93900)
  • 1 x Gasket (Replaces 5033115/17472-93911/17472-93901/18-0478)

Installation Notes

  1. Disconnect the battery and shift the outboard into neutral.
  2. Place a drain pan under the lower unit and remove the gearcase by unbolting it from the engine leg.
  3. Carefully unbolt and remove the water pump housing to access the old impeller, wear plate, and gaskets.
  4. Clean all mating surfaces thoroughly, ensuring they are free of old gasket material and corrosion.
  5. Install the new key, impeller (with fins oriented correctly), gaskets, and wear plate from the kit.
  6. Lubricate the inside of the housing and the new impeller with a marine-safe grease.
  7. Reinstall the water pump housing, torquing bolts to the manufacturer's specification.
  8. Reattach the lower unit to the engine, ensuring the driveshaft and shift shaft align properly.
  9. Once fully assembled, reconnect the battery and test the engine in the water, confirming a steady stream from the tell-tale.

Troubleshooting & FAQ

How do I confirm this kit fits my specific engine?

The best way is to match your engine's model and year to our compatibility tables. For many Suzuki models, we also list the starting Vehicle Identification Number (VIN) for added precision. If you are unsure, check the part number on your existing water pump housing or impeller and compare it to the cross-references in our Part Number Matrix.

What are the signs of a failing water pump impeller?

Common symptoms include a weak or intermittent water stream from the "tell-tale" outlet, engine overheating alarms, or a noticeable decrease in engine performance. A worn or damaged impeller cannot effectively pump cooling water, leading to these issues.

How often should the water pump impeller be replaced?

As a preventative maintenance item, most manufacturers recommend replacing the impeller every 1-2 years or every 100-200 hours of use, whichever comes first. This interval can be shorter if you frequently operate in sandy, silty, or saltwater conditions.

What is the difference between this kit and the OEM version?

Our aftermarket kit is designed to meet or exceed original equipment manufacturer (OEM) specifications for fit, form, and function. It uses comparable materials, such as a high-performance neoprene impeller and corrosion-resistant housing, to provide reliable performance and longevity at a more accessible price point.

OEM vs. Aftermarket?

This listing is an aftermarket replacement (not OEM). Built to OEM-level specifications with comparable materials. Manufactured in an ISO 9002 facility, batch-inspected for consistency.

Shipping speed & cost

We ship worldwide quickly—typical transit 5–15 days. Standard shipping is free; expedited options appear at checkout where available.

Warranty & returns

Covered by a 1-year warranty against manufacturing defects under normal use. If issues arise, contact support with your order details. Returns are accepted within our standard window (unused & in original condition). See our policy page or reach out for instructions.

Safety & Important Info

  • Verify images/specifications vs your original part. If anything differs—even if your model appears compatible—do not purchase.
  • This is an aftermarket replacement, not an OEM component.
  • Professional installation is recommended for safety and performance.

About Sea Sierra

  • Pro-Grade Standards — We supply marine parts engineered to OEM-level tolerances and tested for real-world conditions.
  • Fast Global Fulfillment — Free standard delivery to most regions in 5–15 days.
  • Manufacturer-Direct Value — Fair pricing without compromising on materials or QC.

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