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Water Pump Repair Kit – Fits Yamaha 60-90HP 2-Stroke Outboards (Replaces 692-W0078-02-00)

Sale price $39.99 Regular price $63.00
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Worry-free returns

You may return most new, unopened items within 7 days of delivery for a full refund. We'll also pay the return shipping costs if the return is a result of our error (you received an incorrect or defective item, etc.).

You should expect to receive your refund within four weeks of giving your package to the return shipper, however, in many cases you will receive a refund more quickly. This time period includes the transit time for us to receive your return from the shipper (5 to 10 business days), the time it takes us to process your return once we receive it (3 to 5 business days), and the time it takes your bank to process our refund request (5 to 10 business days).

If you need to return an item, simply login to your account, view the order using the "Complete Orders" link under the My Account menu and click the Return Item(s) button. We'll notify you via e-mail of your refund once we've received and processed the returned item.

Delivery and Shipping

Free standard shipping on all orders under 1 KG

If you have any questions, feel free to email us at info@sierramarines.com, and we’ll get back to you within 20–36 hours.

Product Details

This complete Water Pump Repair Kit – Fits Yamaha 60-90HP 2-Stroke Outboards provides all the essential components to restore your engine's cooling system. It is engineered for a precise fit on various Yamaha 2-Stroke 60, 70, 75, and 90 HP outboard engines.

It serves as a direct aftermarket replacement, offering an equivalent to Yamaha OEM part number 692-W0078-02-00.

  • Installs as a direct OEM-equivalent replacement.
  • Kit includes a new impeller, gaskets, cartridge inserts, and hardware.
  • Restores proper cooling function to prevent engine overheating.

Part Number Matrix

Use this matrix to confirm equivalent references across OEM and aftermarket.

Brand Part Number
Yamaha 692-W0078-02-00

Engine & Model Compatibility

Confirm your engine model/year in the table below.

Brand Model Rated HP Stroke Years OEM Part No. Notes
Yamaha 2-Stroke 60 2-Stroke 692-W0078-02-00
Yamaha 2-Stroke 70 2-Stroke 692-W0078-02-00 Includes 70TLR 2006–2010 models
Yamaha 2-Stroke 75 2-Stroke 692-W0078-02-00
Yamaha 2-Stroke 90 2-Stroke 692-W0078-02-00

Technical Specs

Product Type
Water Pump Repair Kit
Installation
Direct OEM replacement
Dimensions
11" L x 11" W x 6" H
Other Technical Attributes
Includes gaskets, impeller, mechanical components

What’s in the Box

  • 1 x Gasket, Water Pump 1 (688-44315-A0-00)
  • 1 x Gasket, Water Pump 2 (688-44316-A0-00)
  • 1 x Insert, Cartridge (688-44322-00-00)
  • 1 x Outer Plate, Cartridge (688-44323-00-00)
  • 1 x Gasket, Cartridge Outer (688-44324-A0-00)
  • 1 x Impeller (688-44352-03-00)
  • 2 x Bolt, W/ Washer (90119-08M13-00)
  • 2 x Bolt, W/ Washer (90119-08M16-00)
  • 1 x Key, Woodruff (90280-04M04-00)
  • 1 x O-Ring (93210-46044-00)

Installation Notes

  1. Disconnect the battery and drain the lower unit gearcase lube.
  2. Remove the lower unit mounting bolts and carefully detach the unit from the engine.
  3. Unbolt and remove the old water pump housing assembly. Note the orientation of the components.
  4. Remove the old impeller, gaskets, and wear plate, then thoroughly clean all mating surfaces.
  5. Install the new components from the kit in the reverse order of disassembly.
  6. Apply a light coat of marine grease to the new impeller and the inside of the pump housing.
  7. Reassemble the pump housing, ensuring gaskets are aligned, and tighten bolts to the manufacturer's specified torque.
  8. Reinstall the lower unit, carefully aligning the driveshaft, shift shaft, and water tube.
  9. Refill the gearcase with the recommended lubricant.
  10. Reconnect the battery and test the engine's cooling system using a reliable water supply before heading out on the water.

Troubleshooting & FAQ

How can I tell if my water pump is failing?

Common signs include a weak or inconsistent stream of water from the tell-tale outlet, engine overheating alarms, or visible damage to the old impeller (cracked or missing vanes) upon inspection.

How often should I replace my outboard's impeller?

For preventative maintenance, it is recommended to replace the water pump impeller every 1 to 2 years or every 100-200 hours of operation, depending on usage conditions (e.g., more frequently in saltwater or sandy/silty water).

Will this kit definitely fit my engine's model year?

This kit is designed for the specified HP and stroke engines. However, always verify the OEM part number (692-W0078-02-00) against your engine's service manual or existing part to ensure an exact match, as variations can exist within model years.

Is it necessary to replace all the components in the kit?

Yes, it is highly recommended to replace all included gaskets, seals, and hardware. Reusing old components can lead to leaks and premature failure of the new impeller, compromising the repair.

OEM vs. Aftermarket?

This listing is an aftermarket replacement (not OEM). Built to OEM-level specifications with comparable materials. Manufactured in an ISO 9002 facility, batch-inspected for consistency.

Shipping speed & cost

We ship worldwide quickly—typical transit 5–15 days. Standard shipping is free; expedited options appear at checkout where available.

Warranty & returns

Covered by a 1-year warranty against manufacturing defects under normal use. If issues arise, contact support with your order details. Returns are accepted within our standard window (unused & in original condition). See our policy page or reach out for instructions.

Safety & Important Info

  • Verify images/specifications vs your original part. If anything differs—even if your model appears compatible—do not purchase.
  • This is an aftermarket replacement, not an OEM component.
  • Professional installation is recommended for safety and performance.

About Sea Sierra

  • Pro-Grade Standards — We supply marine parts engineered to OEM-level tolerances and tested for real-world conditions.
  • Fast Global Fulfillment — Free standard delivery to most regions in 5–15 days.
  • Manufacturer-Direct Value — Fair pricing without compromising on materials or QC.

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