Water Pump Impeller Kit – Fits Suzuki 90HP, 115HP, 140HP Outboards (Replaces 17400-90J20, 18-3258)

Water Pump Impeller Kit – Fits Suzuki 90HP, 115HP, 140HP Outboards (Replaces 17400-90J20, 18-3258)

This water pump impeller kit is designed for Suzuki DF90, DF115, and DF140 4-Stroke outboard motors from the years 1999–2006. It serves as a comprehensive service kit to restore the performance and reliability of your engine's cooling system.

This kit is a direct replacement for Suzuki part number 17400-90J20, Sierra part number 18-3258, and original OEM part number 17400-90J00.

• Complete Kit: Includes the essential components needed for a full water pump service.
• Direct Replacement: Engineered to match OEM specifications for a precise fit and straightforward installation.
• Enhanced Cooling: Restores proper water circulation to prevent engine overheating and ensure optimal performance.

Part Number Cross-Reference

Use this table to confirm equivalent part numbers across OEM and aftermarket brands.

Compatible Engine Models

Confirm your engine model/year in the table below. For Suzuki owners, You can review exploded diagrams here to verify part numbers: Suzuki Parts Diagrams & Catalog.

Technical Specifications

Package Contents

• 1 x Water Pump Impeller
• 1 x Impeller Gasket
• 1 x Impeller Plate
• 1 x Impeller Key

Installation Guide

1. Disconnect the negative battery cable for safety.
2. Remove the lower unit (gearcase) from the outboard motor by unbolting it.
3. Unscrew the bolts securing the water pump housing and lift it off the driveshaft.
4. Note the rotational direction of the old impeller vanes before sliding it off the driveshaft.
5. Remove the old impeller key, plate, and gasket from the housing.
6. Thoroughly clean the interior of the housing and the plate surface.
7. Install the new gasket, plate, and impeller key into position.
8. Slide the new impeller onto the driveshaft, turning the shaft clockwise to set the vanes correctly inside the housing.
9. Re-install the water pump housing, ensuring a snug fit, and tighten the bolts to the manufacturer's specified torque.
10. Re-attach the lower unit to the outboard motor.
11. Reconnect the battery, supply water to the engine, and run it to check for proper water flow from the tell-tale outlet.

Troubleshooting & FAQ

How do I confirm this fits my engine?

First, check the "Compatible Engine Models" table. This kit is specifically for Suzuki DF90, DF115, and DF140 four-stroke outboards from 1999–2006. Second, verify that your existing part number matches one of the cross-references: Suzuki 17400-90J20, Sierra 18-3258, or the superseded OEM part 17400-90J00.

What are the signs of a failing water pump impeller?

The most common symptoms of a worn or damaged impeller are engine overheating, especially at low speeds, and a weak or nonexistent water stream from the "tell-tale" outlet. You may also hear a whirring or grinding noise if the pump runs dry.

How often should I replace the water pump impeller?

As a key part of preventative maintenance, it is recommended to inspect the impeller annually and replace it every 1 to 2 years, or every 100-200 hours of operation. Replacement frequency should be increased if you operate primarily in saltwater or in water with heavy sediment.

OEM vs. Aftermarket?

This listing is an aftermarket replacement part (not an OEM component). We build to OEM specifications using comparable-grade materials. Production is done in an ISO9002-certified facility, and each batch is inspected for consistent performance.

How fast do you ship and how much does it cost?

We offer fast global shipping—typically 5–15 days worldwide—and standard shipping is free. Expedited options are available at checkout depending on your location.

What is your warranty and return policy?

This product includes a 1-year warranty against manufacturing defects under normal use. If something goes wrong, contact our support team with your order details. Returns are accepted within our standard return window (unused & in original condition); please see our policy page or reach out for instructions.

Important Notes

• Verify that the product images and specifications match your original part. If discrepancies exist—even if your model is listed—do not proceed with the purchase.
• This product is an aftermarket replacement part and is not an OEM component.
• Professional installation is recommended to ensure safety and optimal performance.

Why Choose JLM MARINE?

• Quality Assured: As a trusted manufacturer for over 20 years, we supply top marine brands globally.
• Fast Global Shipping: Free delivery worldwide in 5–15 days.
• Direct from Manufacturer: Competitive pricing without compromising quality.