Water Pump Impeller Repair Kit – Fits Yamaha 50-70 HP Outboards (Replaces 6H3-W0078-A0-00, 6H3-W0078-02-00)
Water Pump Impeller Repair Kit – Fits Yamaha 50-70 HP Outboards (Replaces 6H3-W0078-A0-00, 6H3-W0078-02-00)

Water Pump Impeller Repair Kit – Fits Yamaha 50-70 HP Outboards (Replaces 6H3-W0078-A0-00, 6H3-W0078-02-00)

Vendor: JLM Marine
Availability: In Stock
Product Type: Water Pump Impeller Kit
$24.99
$29.00
$24.99
Subtotal: $24.99

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Water Pump Impeller Repair Kit – Fits Yamaha 50-70 HP Outboards (Replaces 6H3-W0078-A0-00, 6H3-W0078-02-00)

Water Pump Impeller Repair Kit – Fits Yamaha 50-70 HP Outboards (Replaces 6H3-W0078-A0-00, 6H3-W0078-02-00)

$29.00 $24.99
Water Pump Impeller Repair Kit – Fits Yamaha 50-70 HP Outboards (Replaces 6H3-W0078-A0-00, 6H3-W0078-02-00)

Water Pump Impeller Repair Kit – Fits Yamaha 50-70 HP Outboards (Replaces 6H3-W0078-A0-00, 6H3-W0078-02-00)

$29.00 $24.99
Descripción

Water Pump Impeller Repair Kit – Fits Yamaha 50-70 HP Outboards (Replaces 6H3-W0078-A0-00, 6H3-W0078-02-00)

This aftermarket water pump impeller repair kit is designed for Yamaha 2-Stroke 60–70 HP (1997–2003) and 4-Stroke 50–60 HP High Thrust (1997–present) outboard motors. It provides an essential solution for lower unit water pump maintenance and rebuilds.

Direct replacements include Yamaha part numbers 6H3-W0078-00-00, 6H3-W0078-01-00, 6H3-W0078-02-00, 6H3-W0078-A0-00, as well as Sierra numbers 18-3466, 18-3461, and 18-3428-1.

  • Complete water pump rebuild kit including impeller, gaskets, and hardware
  • Fits installation on lower unit
  • Compatible with both 2-Stroke and 4-Stroke Yamaha models

Part Number Cross-Reference

Use this table to confirm equivalent part numbers across OEM and aftermarket brands.

Brand Part Number
Yamaha 6H3-W0078-00-00
Yamaha 6H3-W0078-01-00
Yamaha 6H3-W0078-02-00
Yamaha 6H3-W0078-A0-00
Sierra 18-3466
Sierra 18-3461
Sierra 18-3428-1

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.

Brand Model Rated HP Stroke Years OEM Part No. Notes
Yamaha 60F 60 2-Stroke 1997-2003 6H3-W0078-A0-00
Yamaha 60TLR 60 2-Stroke 2001-2003 6H3-W0078-A0-00 Including 60TLRZ (2001), 60TLRA (2002), 60TLRB (2003)
Yamaha 70B 70 2-Stroke 1997-2003 6H3-W0078-A0-00
Yamaha 70TLR 70 2-Stroke 1997-2003 6H3-W0078-A0-00 Including 70TLRV (1997) through 70TLRB (2003)
Yamaha C60TLR 60 2-Stroke 1997-2001 6H3-W0078-A0-00 Models C60TLRV through C60TLRZ
Yamaha C70TLR 70 2-Stroke 2000-2001 6H3-W0078-A0-00 Models C70TLRY and C70TLRZ
Yamaha P60TLH 60 2-Stroke 1997-1999 6H3-W0078-A0-00 Models P60TLHV through P60TLHX
Yamaha T50 50 4-Stroke 1997-Present 6H3-W0078-A0-00 High Thrust models; includes T50TLRV through current
Yamaha FT50 50 4-Stroke 1997-Present 6H3-W0078-A0-00 High Thrust models; includes FT50B through current
Yamaha F50TLH 50 4-Stroke 1997 6H3-W0078-A0-00 Model F50TLHV
Yamaha F50TLR 50 4-Stroke 1997 6H3-W0078-A0-00 Model F50TLRV
Yamaha T60 60 4-Stroke 2003-Present 6H3-W0078-A0-00 High Thrust models; includes T60TLRB through current
Yamaha FT60 60 4-Stroke 2003-Present 6H3-W0078-A0-00 High Thrust models; includes FT60B through current

Technical Specifications

Specification Value
Product Type Water Pump Impeller Repair Kit
Installation Lower Unit
Weight ~250 g (8.8 oz)
Warranty Standard Manufacturer Warranty
Other Technical Attributes Complete water pump rebuild kit including impeller, gaskets, and hardware

Package Contents

  • 1 x Cartridge Insert (663-44322-00-00)
  • 1 x Impeller (6H3-44352-01/697-44352-00)
  • 1 x Water Pump Gasket (6H3-44315-A0-00)
  • 1 x Cartridge Outer Plate/Wear Plate (6H3-44323-00-00)
  • 1 x Cartridge Gasket (6H3-44324-A0-00)
  • 1 x Water Pump Gasket (688-44316-A0-00)
  • 1 x O-Ring (93210-46044-00)
  • 2 x Bolts (97095-08045-00)
  • 2 x Bolts (97395-08055-00)
  • 1 x Woodruff Key (90280-03M03-00)

Installation Guide

  1. Remove the lower unit from the outboard motor following manufacturer safety guidelines.
  2. Drain any remaining water from the lower unit before disassembly.
  3. Remove the old water pump housing and impeller carefully to avoid damage to surrounding parts.
  4. Inspect the housing and replace any damaged parts as necessary.
  5. Install the new impeller and associated gaskets included in the kit.
  6. Replace the cartridge insert, outer plate, and gaskets in proper order.
  7. Secure all bolts and hardware to manufacturer torque specifications.
  8. Reinstall the lower unit onto the outboard motor.
  9. Test operation to ensure proper water flow and no leaks.

Troubleshooting & FAQ

How do I confirm this fits my engine?
Check the compatible engine models table for your model and year. Use the Yamaha Serial Number Guide linked above to verify your engine details.
What are the differences between this aftermarket kit and OEM parts?
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.
How often should I replace the water pump impeller?
It is recommended to inspect and replace the water pump impeller at least once per boating season or every 100 hours of operation, whichever comes first.
What are common signs of water pump failure?
Reduced water flow from the cooling system, engine overheating, and unusual noises may indicate water pump failure or impeller damage.
How fast do you ship and how much does it cost?
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.
What is your warranty and return policy?
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.
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Para nuestros clientes típicos de EE. UU. y Canadá , nuestros plazos de envío son los siguientes:

  • Amazon FBA : los pedidos se entregarán dentro de 1-5 días hábiles después de realizar el pedido (durante ciertos períodos especiales como promociones importantes, Navidad, etc., el tiempo de entrega de Amazon FBA puede verse afectado).
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Al realizar un pedido, estimaremos las fechas de envío y entrega según la disponibilidad de sus artículos y las opciones de envío que elija. Dependiendo del proveedor de envío que elija, las fechas de envío estimadas podrían aparecer en la página de presupuestos de envío.

Tenga en cuenta también que las tarifas de envío de muchos de los artículos que vendemos se basan en el peso. Puede consultar el peso de cada artículo en su página de detalles. Para reflejar las políticas de las empresas de envío que utilizamos, todos los pesos se redondearán a la libra superior.

Acerca de JLM Marine

Fundada en 2002, JLM Marine se ha consolidado como un fabricante dedicado de piezas marinas de alta calidad, con sede en China. Nuestro compromiso con la excelencia en la fabricación nos ha ganado la confianza de las principales marcas marinas a nivel mundial.

Como proveedor directo, evitamos intermediarios, lo que nos permite ofrecer precios competitivos sin comprometer la calidad. Este enfoque no solo promueve la rentabilidad, sino que también garantiza que nuestros clientes reciban el mejor valor directamente del proveedor.

Estamos entusiasmados de ampliar nuestro alcance a través de canales minoristas, llevando nuestra experiencia y compromiso con la calidad directamente a los propietarios de embarcaciones y entusiastas de todo el mundo.

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