Water Pump Impeller Service Kit for Suzuki DF8A, DF9.9A, DF9.9B, DF15A & DF20A – Replaces 17400-99840, 17400-99841 & 17400-99J20
Water Pump Impeller Service Kit for Suzuki DF8A, DF9.9A, DF9.9B, DF15A & DF20A – Replaces 17400-99840, 17400-99841 & 17400-99J20 is backordered and will ship as soon as it is back in stock.
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Delivery and Shipping
Delivery and Shipping
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Water Pump Impeller Service Kit for Suzuki DF8A, DF9.9A, DF9.9B, DF...
Water Pump Impeller Service Kit for Suzuki DF8A, DF9.9A, DF9.9B, DF15A & DF20A – Replaces 17400-99840, 17400-99841 & 17400-99J20 is backordered and will ship as soon as it is back in stock.
Product Details
This Water Pump Impeller Service Kit is designed for cooling-system maintenance on selected Suzuki 4-stroke outboard motors, including the DF8A, DF9.9A, DF9.9B, DF15A and DF20A. Replacing a worn impeller helps maintain proper cooling-water circulation and reduces the risk of overheating caused by damaged, hardened or missing impeller vanes.
This is an aftermarket replacement service kit, not a Suzuki-manufactured OEM component. It is associated with Suzuki water-pump references including 17400-99840, 17400-99841, 17400-99J00, 17400-99J01 and 17400-99J20. Confirm the complete engine model, stroke, year or serial range and the original pump components before ordering.
- For selected Suzuki 4-stroke outboard water-pump applications.
- Supplies the principal parts needed for the listed water-pump service.
- Suitable for routine maintenance when the engine and original components match the application information below.
- Inspect the original parts and service-manual requirements before installation.
Part Number References
The following Suzuki part numbers are reference numbers associated with this application. They should be used together with the engine model and service-manual information; a matching number alone does not confirm fitment for every engine configuration.
| Brand | Reference Part Number | Application Note |
|---|---|---|
| Suzuki | 17400-99840 | Water-pump service reference |
| Suzuki | 17400-99841 | Water-pump service reference |
| Suzuki | 17400-99J00 | Water-pump service reference |
| Suzuki | 17400-99J01 | Water-pump service reference |
| Suzuki | 17400-99J20 | Water-pump service reference |
Engine & Model Compatibility
Use the model information below as an application guide. Check the complete model designation, stroke, year or serial range and the original water-pump assembly before purchase.
| Brand | Model | Rated HP | Stroke | Reference Part Numbers | Fitment Guidance |
|---|---|---|---|---|---|
| Suzuki | DF8A | 8 | 4-Stroke | 17400-99840, 17400-99841, 17400-99J20 | Confirm the exact model and production or serial range. |
| Suzuki | DF9.9A | 9.9 | 4-Stroke | 17400-99840, 17400-99841, 17400-99J20 | Confirm the exact model and production or serial range. |
| Suzuki | DF9.9B | 9.9 | 4-Stroke | 17400-99J20 | Compare the original impeller, key and pump components. |
| Suzuki | DF15A | 15 | 4-Stroke | 17400-99J20 | Compare the original impeller, key and pump components. |
| Suzuki | DF20A | 20 | 4-Stroke | 17400-99J20 | Compare the original impeller, key and pump components. |
Technical Specifications
- Product Type
- Water pump impeller service kit
- Application
- Selected Suzuki 4-stroke outboard water-pump systems
- Installation
- Replacement service installation; verify the exact application before fitting
- Product Status
- Aftermarket replacement, not OEM
What's in the Box
- 1 x Water pump repair kit
- 1 x Pump case sleeve, reference 17413-94J00
- 1 x Pump plate gasket, reference 09168-12017
- 1 x Drive key, reference 09204-02004
Additional seals, O-rings or fasteners shown in some engine service diagrams may be separate parts and are not included unless specifically listed above.
Installation Notes
- Turn the engine off, remove the ignition key and follow the safety instructions in the engine service manual.
- Disconnect the battery where required and place the engine in a safe, stable position before beginning service.
- Remove the lower gearcase according to the manufacturer’s procedure.
- Remove the water-pump housing and note the original impeller orientation before taking it out.
- Remove the old impeller, drive key, gaskets and other service parts being replaced.
- Clean the mating surfaces and inspect the pump housing, plate, sleeve and driveshaft for wear or damage.
- Install the gasket, pump plate, drive key and impeller in the correct order. Set the impeller vanes in the correct rotational direction.
- Use only a lubricant approved for marine water-pump service and compatible with the impeller material.
- Reinstall the pump housing and tighten fasteners according to the Suzuki service-manual specification.
- Reattach the lower unit and complete all linkage, fastener and seal checks required by the service procedure.
- Test the engine using an appropriate water supply or flush attachment and verify a strong, consistent cooling-water discharge before normal operation.
Troubleshooting & FAQ
What are common signs of a failing water-pump impeller?
Symptoms can include engine overheating, a weak or intermittent tell-tale stream, reduced cooling-water flow and visibly cracked, brittle or missing impeller vanes. Stop operation if the engine overheats and inspect the cooling system.
How often should the impeller be replaced?
Replacement timing depends on operating hours, storage conditions, water quality and the engine manufacturer’s service schedule. Inspect the impeller during scheduled maintenance and replace it when the service manual recommends or whenever wear or damage is found.
Will this fit a Suzuki model not listed here?
Do not assume fitment for an unlisted model. Compare the complete engine model, stroke, year or serial range, original part number and pump-component dimensions with the service information before ordering.
Does the kit include O-rings?
No additional O-rings are included unless they appear in the box contents above. Some Suzuki water-pump diagrams call for separate O-rings, so check the service manual for your exact engine configuration.
Is this an OEM Suzuki part?
No. This listing is for an aftermarket replacement service kit intended for the stated Suzuki applications. Suzuki and its part numbers are used only to identify the intended application and reference parts.
Safety & Important Information
- Confirm the complete engine model, stroke, year or serial range and original part before ordering.
- Do not run an outboard without an adequate water supply or approved flushing arrangement.
- Stop testing immediately if the engine overheats, the tell-tale stream is weak or abnormal noise occurs.
- Professional installation is recommended when lower-unit removal or water-pump service is unfamiliar.
- This is an aftermarket replacement, not a Suzuki OEM component.
About Sea Sierra
- Marine Replacement Parts — Practical aftermarket components for routine servicing and repairs.
- Application-Focused Listings — Model and reference-number information is provided to help with compatibility checks.
- Service-Minded Support — Compare your original component and service-manual requirements before installation.
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