6E5-44352;6E5-44352-01 Outboard Impeller for Yamaha 90 Jet 100B 115A 115B 115C 130B 150A 150F 175D 200A 200C 200F 200G 225A 225B 225C 225D 225G 250A 250B 250G F75 F90 F100B F115A F150A F175 F200C F225A F225B F225C F250A F250B | JLM Marine

Outboard Impeller 6E5-44352-01 – Fits Yamaha 2-Stroke & 4-Stroke 75–300 HP

This aftermarket water pump impeller is engineered to fit a wide range of Yamaha outboard engines, including 2-stroke models from 90 HP to 300 HP (1984 and up) and 4-stroke models from 75 HP to 250 HP (2000–2018). Designed as a direct replacement for Yamaha OEM part numbers 6E5-44352-00-00 and 6E5-44352-01, this impeller ensures reliable cooling system performance across V4 and V6 engine platforms.

This impeller replaces Yamaha OEM 6E5-44352 and 6E5-44352-01, as well as Sierra 18-3070 and CEF 500371. It is constructed from durable neoprene with 6 blades, featuring an external diameter of 89.00 mm (3.50 inch) and an internal shaft diameter of 22.80 mm (0.90 inch).

• Package includes 1 × Neoprene Impeller
• Compatible with both 2-stroke and 4-stroke Yamaha outboards
• Direct-fit replacement for multiple OEM and aftermarket part numbers

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 × Neoprene Outboard Impeller

Installation Guide

1. Disconnect the fuel line and ensure the engine is off and cool before beginning any service work.
2. Remove the lower unit from the outboard motor by loosening the retaining bolts and lowering the gear case carefully.
3. Locate the water pump housing on the lower unit, typically secured by several screws or bolts.
4. Remove the water pump cover and carefully extract the old impeller, noting its orientation and rotation direction.
5. Inspect the pump housing and liner for scoring, corrosion, or wear; replace if damaged.
6. Lubricate the new impeller blades with water-resistant marine grease or glycerin to ease installation.
7. Insert the new impeller into the housing, ensuring the blades face the correct direction (same as the original).
8. Reinstall the water pump cover and plate, tightening fasteners evenly to the manufacturer's torque specification.
9. Reattach the lower unit to the outboard, aligning the drive shaft and water tube properly.
10. Tighten all retaining bolts securely and reconnect the fuel line.
11. Submerge the lower unit in water (or use flushing muffs) and start the engine to confirm water circulation.
12. Check for leaks or overheating during a brief test run; shut down immediately if issues arise.

Troubleshooting & FAQ

Q: How do I confirm this impeller fits my engine?
A: Cross-reference your engine model, horsepower, and year with the compatibility table above. Verify your OEM part number (6E5-44352 or 6E5-44352-01) matches, or consult Yamaha parts diagrams for your serial number.

Q: How often should I replace the water pump impeller?
A: Yamaha recommends inspecting the impeller annually and replacing it every 2–3 years or 300–400 operating hours, whichever comes first. Replace immediately if blades show cracking, missing pieces, or deformation.

Q: What are common signs of impeller failure?
A: Watch for engine overheating, reduced or no water flow from the tell-tale (pee hole), steam from the engine, or unusual temperature gauge readings. Any of these symptoms require immediate shutdown and inspection.

Q: Can I use this impeller on both 2-stroke and 4-stroke Yamaha engines?
A: Yes, this impeller is designed to fit both 2-stroke (90–300 HP, 1984 & up) and 4-stroke (75–250 HP, 2000–2018) Yamaha outboards, provided your model is listed in the compatibility table.

Q: Does this impeller come with installation hardware or gaskets?
A: This package includes only the neoprene impeller. Gaskets, seals, and other water pump components are sold separately; we recommend replacing the entire water pump kit for best results.

Q: What is the difference between OEM and aftermarket impellers?
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.