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Water Pump Service Kit with Plate for Suzuki DT115/DT140 2-Stroke Outboards (1986–2001) – OEM 17400-94600, 17400-94601, 17400-94602, 17400-94610, 17400-94611 / Sierra 18-3257

Regular price $28.16

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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@seasierra.com, and we’ll get back to you within 20–36 hours.

Product Details

This Water Pump Service Kit with Plate is designed for Suzuki 2-stroke DT115 and DT140 outboard engines manufactured from 1986 through 2001. It is intended for servicing the water pump and helping restore proper cooling-system performance.

The kit is listed for Suzuki OEM references 17400-94600, 17400-94601, 17400-94602, 17400-94610, and 17400-94611. The corresponding aftermarket reference is Sierra 18-3257.

  • Designed for Suzuki DT115 and DT140 2-stroke outboards within the stated year range.
  • Service-kit format for water-pump maintenance.
  • Includes the impeller and pump plate specified for this product.
  • Helps maintain dependable water circulation and cooling performance when installed correctly.

Part Number Matrix

Use the following references to compare this service kit with the part number shown on your engine or existing water-pump components.

Brand or Source Part Number Reference
Suzuki 17400-94600 OEM reference listed for this service-kit application.
Suzuki 17400-94601 OEM reference listed for this service-kit application.
Suzuki 17400-94602 OEM reference listed for this service-kit application.
Suzuki 17400-94610 OEM reference listed for this service-kit application.
Suzuki 17400-94611 OEM reference listed for this service-kit application.
Sierra 18-3257 Aftermarket reference listed for the kit.

Engine & Model Compatibility

Confirm the engine brand, model, stroke type, and year before ordering. Model and year conditions should be checked together because similar-looking water-pump parts may use different applications.

Brand Model Rated HP Stroke Years OEM References Notes
Suzuki DT115 115 2-Stroke 1986–2001 17400-94600, 17400-94601, 17400-94602, 17400-94610, 17400-94611 Water-pump service-kit application. Verify the model plate and serial information before installation.
Suzuki DT140 140 2-Stroke 1986–2001 17400-94600, 17400-94601, 17400-94602, 17400-94610, 17400-94611 Water-pump service-kit application. Verify the model plate and serial information before installation.

Technical Specs

Product Type
Water Pump Service Kit with Plate
Application
Suzuki DT115 and DT140 2-stroke outboard engines
Application Years
1986–2001
Installation
Replacement water-pump service installation
Aftermarket Reference
Sierra 18-3257

What’s in the Box

The company product information identifies this as a water-pump service kit with a plate. The listed contents are:

  • 1 x Water pump impeller
  • 1 x Water pump plate

Gaskets, keys, fasteners, and a water-pump housing are not identified as included components in the product information for this item. Compare the contents with the parts removed from your engine before beginning service.

Installation Notes

  1. Disconnect the battery and place the engine in a secure service position.
  2. Remove the lower unit according to the engine manufacturer's service procedure.
  3. Remove the water-pump housing and inspect the pump cavity, driveshaft, water tube, and mating surfaces.
  4. Remove the old impeller and pump plate. Clean the mating surfaces and remove debris before assembly.
  5. Install the replacement pump plate and impeller using the correct orientation for the driveshaft and pump housing.
  6. Reinstall the water-pump housing and tighten its fasteners to the engine manufacturer's specifications.
  7. Reinstall the lower unit, ensuring that the water tube and shift mechanism are correctly aligned.
  8. Reconnect the battery and test the engine at idle. Confirm a strong telltale stream and monitor for overheating before normal operation.

Always use the service procedure and torque specifications for your exact engine model. If the gasket, key, or other sealing hardware is worn or damaged, source the correct replacement separately before completing the installation.

Troubleshooting & FAQ

How do I know if my water-pump impeller needs service?

Common signs include a weak or absent telltale stream, an overheating warning, reduced cooling performance, or visible cracking and brittleness in the impeller vanes. Sand, salt, and debris can also accelerate wear.

Will this kit fit any Suzuki outboard?

No. This application is for Suzuki DT115 and DT140 2-stroke outboards from 1986 through 2001. Check the engine model plate, year, serial information, and existing part reference before ordering.

Is this an OEM Suzuki part?

No. This is an aftermarket water-pump service kit listed for the Suzuki OEM references shown on this page. Suzuki is mentioned only to identify the engine application and OEM references.

Does the kit include a gasket, key, or water-pump housing?

The product information identifies the kit as including an impeller and plate. A gasket, key, and water-pump housing are not identified as included components, so confirm and source any additional service parts required for your engine separately.

How often should the water-pump impeller be replaced?

Inspect the impeller according to your engine manufacturer's maintenance schedule and replace it when wear, cracking, deformation, or reduced cooling performance is found. Service intervals can vary with operating hours, storage conditions, and saltwater or sandy-water use.

What should I verify before purchasing?

Verify that your engine is a Suzuki DT115 or DT140 2-stroke model from 1986–2001 and compare the OEM reference, old parts, and product contents. If any detail differs, consult a qualified marine technician before ordering.

What are your shipping speeds and costs?

We ship worldwide, with typical transit times of 5–15 days for most regions. Standard shipping is free. If available for your location, expedited options will be shown at checkout.

What is the warranty and return policy?

Returns are accepted within the applicable return window for unused items in their original packaging. Please review the current store policy for warranty coverage, return eligibility, and instructions before installation.

Safety & Important Info

  • Confirm the complete engine application before purchase; model, year, horsepower, and stroke type must match.
  • Inspect all related water-pump components and replace worn sealing hardware or fasteners as required.
  • Use the manufacturer's service manual for disassembly, torque values, and final testing.
  • This is an aftermarket replacement service kit, not an OEM Suzuki component.
  • Professional installation is recommended if you are unfamiliar with outboard lower-unit or water-pump service.

About Sea Sierra

  • Marine Parts Focus — We supply replacement parts for common marine maintenance and repair applications.
  • Global Fulfillment — Free standard delivery is available to most regions, with estimated delivery times shown at checkout.
  • Application-Focused Listings — Product references and fitment details are provided to help you compare the part with your engine before ordering.

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