682-44352;682-44352-01 Outboard Impeller for Yamaha F9.9 FT9.9 T9.9 | JLM Marine

Outboard Impeller 682-44352 / 682-44352-01 – Fits Yamaha 9.9-15 HP 2-Stroke & 4-Stroke Outboards

This aftermarket outboard impeller is engineered to fit a wide range of Yamaha 9.9 HP and 15 HP outboard motors, covering both 2-stroke and 4-stroke models from 1984 through 2003. It provides reliable cooling system performance for F9.9, FT9.9, and T9.9 series engines across multiple production years.

This impeller directly replaces Yamaha OEM part numbers 682-44352 and 682-44352-01, ensuring proper fitment and compatibility with your original cooling system housing.

• Designed for Yamaha 2-stroke and 4-stroke outboards from 9.9 to 15 HP
• Direct replacement for OEM numbers 682-44352 and 682-44352-01
• Essential cooling system component requiring periodic replacement

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 Yamaha owners, here's a guide to help you identify your engine's serial/model: Yamaha Serial Number Guide. You can also review exploded diagrams to verify part numbers: Yamaha Parts Diagrams & Catalog.

Technical Specifications

Package Contents

• 1 × Outboard Impeller

Installation Guide

1. Disconnect the fuel line and remove the engine cowling to access the lower unit.
2. Remove the water pump housing bolts and carefully separate the housing from the lower unit. Take note of the impeller orientation.
3. Extract the old impeller using impeller removal pliers or a flat-blade screwdriver, being careful not to damage the housing.
4. Clean the impeller housing and pump plate thoroughly, removing any debris, old gasket material, or corrosion.
5. Inspect the pump plate and housing for wear, cracks, or scoring; replace if damaged.
6. Lubricate the new impeller with water-resistant grease or soapy water to ease installation and prevent dry-start damage.
7. Install the new impeller into the housing, ensuring all blades are oriented in the correct rotational direction (usually clockwise viewed from above).
8. Position a new gasket on the pump plate and carefully reassemble the water pump housing, aligning all bolt holes.
9. Torque the housing bolts to manufacturer specifications in a criss-cross pattern to ensure even sealing.
10. Reinstall the lower unit onto the engine, reconnect all cooling system hoses, and ensure proper alignment.
11. Start the engine in a test tank or on-water and verify strong water flow from the telltale (pee hole).
12. Check for leaks around the pump housing and retighten bolts if necessary. Replace the cowling and perform a final test run.

Troubleshooting & FAQ

Q: How do I confirm this impeller fits my Yamaha engine?
A: Cross-reference your engine model, horsepower, stroke type, and production year with the compatibility table above. You can also verify the OEM part number (682-44352 or 682-44352-01) by checking your engine's parts diagram or existing impeller.

Q: How often should I replace my outboard impeller?
A: Most manufacturers recommend inspecting your impeller annually and replacing it every 2-3 years or 200-300 operating hours, whichever comes first. Replace immediately if you notice reduced water flow, overheating, or visible blade damage.

Q: What are the signs of a failing impeller?
A: Common symptoms include weak or no water stream from the telltale, engine overheating, steam from the engine, or a high-temperature warning alarm. Inspect the impeller if any of these occur.

Q: Can I use this impeller in both 2-stroke and 4-stroke Yamaha engines?
A: Yes, this impeller is compatible with both Yamaha 2-stroke (9.9/15 HP, 1984-1995) and 4-stroke (F9.9, FT9.9, T9.9 models) outboards as listed in the compatibility table.

Q: What is the difference between this aftermarket impeller and the OEM version?
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?

• 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.