17461-93901 Impeller with Key for Suzuki DT15 DF8 DF9.9 DF15 | JLM Marine
This replacement impeller is engineered to fit Suzuki 2-stroke and 4-stroke outboard engines, including the DT15 (1986-97), DF8 (2010+), DF9.9 (2004+), and DF15 (2004+) models. Designed to restore reliable water pump performance, this impeller ensures consistent cooling for your engine.
This part directly replaces Suzuki OEM part numbers 17461-93901, 17461-93902, and 17461-93903, as well as aftermarket equivalents including Sierra 18-3099 and CEF 500329.
- Includes impeller and key/pin for complete installation
- Compatible with 8, 9.9, and 15 HP Suzuki outboards
- Suitable for both 2-stroke and 4-stroke engine applications
Part Number Cross-Reference
Use this table to confirm equivalent part numbers across OEM and aftermarket brands.
| Brand |
Part Number |
Notes |
| Suzuki |
17461-93901 |
OEM Part Number |
| Suzuki |
17461-93902 |
OEM Part Number |
| Suzuki |
17461-93903 |
OEM Part Number |
| Sierra |
18-3099 |
Aftermarket Replacement |
| CEF |
500329 |
Aftermarket Replacement |
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.
| Brand |
Model |
Rated HP |
Stroke |
Years |
| Suzuki |
DT15 |
15 |
2-Stroke |
1986-1997 |
| Suzuki |
DF8 |
8 |
4-Stroke |
2010+ |
| Suzuki |
DF9.9 |
9.9 |
4-Stroke |
2004+ |
| Suzuki |
DF15 |
15 |
4-Stroke |
2004+ |
Technical Specifications
| Specification |
Value |
| Part Type |
Water Pump Impeller |
| Material |
Rubber |
| OEM Part Number |
17461-93901 |
| Application |
Outboard Motor Cooling System |
Package Contents
- 1 × Outboard Rubber Impeller
- 1 × Key / Pin
Installation Guide
- Disconnect the fuel line and remove the engine cowling to access the lower unit. Ensure the engine is completely cool before beginning work.
- Remove the water pump housing bolts and carefully lift off the housing. Take note of the orientation of the old impeller.
- Extract the old impeller using pliers or an impeller removal tool, being careful not to damage the pump housing. Remove any debris or old gasket material from the housing.
- Inspect the pump housing and wear plate for scoring, corrosion, or damage. Replace these components if necessary.
- Lubricate the new impeller blades with glycerin, dish soap, or water pump grease (never use petroleum-based grease). Do not use motor oil.
- Insert the key/pin into the drive shaft slot before installing the impeller. Ensure it is properly seated.
- Carefully install the new impeller into the housing, ensuring the blades are oriented in the correct rotation direction. Rotate the drive shaft clockwise while gently pressing down.
- Replace the wear plate and any gaskets or O-rings with new components included in your water pump rebuild kit (if applicable).
- Reinstall the water pump housing, ensuring all alignment marks are matched. Tighten bolts to the manufacturer's specified torque in a crisscross pattern.
- Reattach the lower unit to the engine, ensuring the drive shaft engages properly with the impeller.
- Reconnect the fuel line and reinstall the engine cowling. Check all fasteners for proper tightness.
- Test the engine in a water tank or on the water, confirming strong water flow from the telltale port within 10-15 seconds of starting.
Troubleshooting & FAQ
Q: How do I confirm this impeller fits my Suzuki engine?
A: Verify your engine model and year against the compatibility table above. Cross-reference the OEM part number (17461-93901, 17461-93902, or 17461-93903) stamped on your original impeller or found in your engine's parts diagram.
Q: How often should I replace my water pump impeller?
A: Most manufacturers recommend replacing the impeller every 2-3 years or 200-300 hours of operation, whichever comes first. If you notice reduced water flow, overheating, or visible cracking/missing blades, replace it immediately.
Q: What are the signs of a failing impeller?
A: Common symptoms include weak or no water discharge from the telltale port, engine overheating, steam from the exhaust, reduced performance, and alarm activation. Inspect the impeller regularly for cracks, missing blades, or hardening.
Q: Can I install this impeller myself, or do I need a mechanic?
A: If you have basic mechanical skills and the right tools, you can replace the impeller yourself following the installation guide. However, if you're unfamiliar with outboard maintenance, professional installation is recommended to avoid damage.
Q: Why is the key/pin included, and is it necessary?
A: The key (or pin) locks the impeller onto the drive shaft, ensuring it rotates with the shaft. It is essential for proper operation; without it, the impeller will not turn and your engine will overheat.
Q: Is this an OEM or aftermarket impeller?
A: 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.
Q: How fast do you ship and how much does it cost?
A: 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.
Q: What is your warranty and return policy?
A: 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?
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Quality Assured: As a trusted manufacturer for over 20 years, we supply top marine brands globally.
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Fast Global Shipping: Free delivery worldwide in 5–15 days.
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Direct from Manufacturer: Competitive pricing without compromising quality.