Water Pump Repair Kit – Fits Yamaha V6 2-Stroke 200–300HP (60X-W0078-00-00, 18-3516)
Water Pump Repair Kit – Fits Yamaha V6 2-Stroke 200–300HP (60X-W0078-00-00, 18-3516) is backordered and will ship as soon as it is back in stock.
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Worry-free returns
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
Delivery and Shipping
Free standard shipping on all orders under 1 KG
Product Details
This Water Pump Repair Kit – Fits Yamaha V6 2-Stroke 200–300HP (60X-W0078-00-00, 18-3516) is engineered for Yamaha's 2-Stroke V6 HPDI engines ranging from 200HP to 300HP (3.1L/3.3L), manufactured between 2003 and 2009. It contains all essential components to restore the performance and reliability of your engine's cooling system.
This kit serves as a direct interchange for Sierra 18-3516 and Yamaha 60X-W0078-00-00 (superseded by 60X-W0078-00/60XW00780000), ensuring precise fitment and function.
- Engineered for direct OEM replacement, simplifying installation.
- Fits perfectly inside the existing Yamaha V6 2-Stroke water pump housing.
- The kit includes a new impeller, gaskets, O-rings, and hardware for a comprehensive service.
Part Number Matrix
Use this matrix to confirm equivalent references across OEM and aftermarket.
| Brand | Part Number | Superseded By |
|---|---|---|
| Sierra | 18-3516 | |
| Yamaha | 60X-W0078-00-00 | 60X-W0078-00/60XW00780000 |
Engine & Model Compatibility
Confirm your engine model/year in the table below.
This kit is specifically designed for Yamaha V6 HPDI models from 2003 to 2009. Please verify your specific model and year to ensure compatibility.
| Brand | Model | Rated HP | Stroke | Years | OEM Part No. | Notes |
|---|---|---|---|---|---|---|
| Yamaha | VZ200RTLR | 200 | 2-Stroke | 2007–2009 | 60X-W0078-00-00 | HPDI model |
| Yamaha | VZ200TLR | 200 | 2-Stroke | 2005–2006 | 60X-W0078-00-00 | HPDI model |
| Yamaha | VZ200TLRD | 200 | 2-Stroke | 2005 | 60X-W0078-00-00 | HPDI model |
| Yamaha | VZ225HTLR | 225 | 2-Stroke | 2007–2009 | 60X-W0078-00-00 | HPDI model |
| Yamaha | VZ225TLR | 225 | 2-Stroke | 2005–2006 | 60X-W0078-00-00 | HPDI model |
| Yamaha | VZ225TLRB | 225 | 2-Stroke | 2003 | 60X-W0078-00-00 | HPDI model |
| Yamaha | VZ225TLRC | 225 | 2-Stroke | 2004 | 60X-W0078-00-00 | HPDI model |
| Yamaha | VZ225TLRD | 225 | 2-Stroke | 2005 | 60X-W0078-00-00 | HPDI model |
| Yamaha | VZ250FTLR | 250 | 2-Stroke | 2007–2009 | 60X-W0078-00-00 | HPDI model |
| Yamaha | VZ250TLR | 250 | 2-Stroke | 2005–2006 | 60X-W0078-00-00 | HPDI model |
| Yamaha | VZ250TLRB | 250 | 2-Stroke | 2003 | 60X-W0078-00-00 | HPDI model |
| Yamaha | VZ250TLRC | 250 | 2-Stroke | 2004 | 60X-W0078-00-00 | HPDI model |
| Yamaha | VZ250TLRD | 250 | 2-Stroke | 2005 | 60X-W0078-00-00 | HPDI model |
| Yamaha | VZ300BTLR | 300 | 2-Stroke | 2007–2009 | 60X-W0078-00-00 | HPDI model |
| Yamaha | VZ300TLR | 300 | 2-Stroke | 2005–2006 | 60X-W0078-00-00 | HPDI model |
| Yamaha | VZ300TLRC | 300 | 2-Stroke | 2004 | 60X-W0078-00-00 | HPDI model |
| Yamaha | VZ300TLRD | 300 | 2-Stroke | 2005 | 60X-W0078-00-00 | HPDI model |
Technical Specs
- Product Type
- Water Pump Repair Kit
- Installation
- Direct OEM replacement
- Connection
- Fits Yamaha V6 2-Stroke water pump housing
- Dimensions
- 5.0" L x 5.0" W x 9.0" H
- Warranty
- Standard manufacturer warranty
- Other Technical Attributes
- Does not include water pump housing; kit fits inside existing housing
What’s in the Box
- 1 x Gasket, Water Pump (60X-44315-A0-00)
- 1 x Outer Plate, Cartridge (60X-44323-00-00)
- 1 x Insert, Cartridge (61A-44322-02-00)
- 1 x Impeller (6E5-44352-01-00)
- 4 x Bolt, With Washer (90119-08M14-00)
- 1 x Key, Woodruff (90280-04M05-00)
- 1 x O-Ring (93210-37M67-00)
- 1 x O-Ring (93210-86M38-00)
- 2 x Pin, Dowel (93606-12019-00)
Installation Notes
- Disconnect the battery and ensure the engine is off and completely cool before starting.
- Remove the lower unit (gearcase) from the outboard motor according to your service manual.
- Unbolt and carefully remove the existing water pump assembly. Note the orientation of all parts.
- Remove the old impeller, wear plate, gaskets, and seals, cleaning any corrosion or debris from the housing surfaces.
- Install the new gasket and wear plate onto the lower unit.
- Slide the new Woodruff key onto the driveshaft and install the new impeller, turning the shaft clockwise to bed the vanes.
- Fit the new O-rings and dowel pins, then reinstall the water pump housing and tighten bolts to the specified torque.
- Reattach the lower unit to the engine, ensuring the driveshaft and shift shaft align correctly.
- Once assembled, test the engine in the water or with a suitable flush device to confirm proper water flow from the tell-tale outlet.
Troubleshooting & FAQ
How do I know if my water pump is failing?
Common signs include the engine overheating at idle or low speeds, a weak or inconsistent water stream from the "telltale" outlet, or finding a dry, cracked, or damaged impeller during routine inspection.
How often should I replace my water pump impeller?
For optimal performance and engine safety, most manufacturers recommend inspecting the water pump and replacing the impeller every 1 to 2 years or every 100–200 hours of use, whichever occurs first.
Will this kit fit a non-HPDI Yamaha V6 engine?
No, this repair kit is specifically designed to fit Yamaha V6 HPDI (High-Pressure Direct Injection) 3.1L and 3.3L engines from 2003–2009. It is not compatible with standard carbureted or EFI models from the same era.
Does this kit include the complete water pump housing?
No, this is a repair kit that includes the internal wear-and-tear components (impeller, gaskets, plates, O-rings, etc.). It is designed to be installed inside your existing water pump housing.
Why is replacing the Woodruff key important?
The Woodruff key locks the impeller to the driveshaft, ensuring it spins at the correct speed to pump water. Using the new key provided in the kit is critical for proper alignment and to prevent impeller slippage.
OEM vs. Aftermarket?
This listing is an aftermarket replacement (not OEM). It is built to OEM-level specifications with comparable materials. Manufactured in an ISO 9001 facility and batch-inspected for consistency and quality.
Shipping speed & cost?
We ship worldwide quickly—typical transit is 5–15 days. Standard shipping is free; expedited options will appear at checkout if available for your location.
Warranty & returns?
This product is covered by a 1-year warranty against manufacturing defects under normal use. If issues arise, contact our support team with your order details. Returns are accepted within our standard window for unused items in their original condition. Please see our policy page or reach out for instructions.
Safety & Important Info
- Verify images and specifications against your original part before ordering. If anything differs—even if your model appears compatible—do not purchase.
- This is an aftermarket replacement part, not an original equipment manufacturer (OEM) component.
- Professional installation is highly recommended for safety and to ensure optimal performance.
About Sea Sierra
- Pro-Grade Standards — We supply marine parts engineered to OEM-level tolerances and rigorously tested for demanding real-world conditions.
- Fast Global Fulfillment — We offer free standard delivery to most regions, with typical transit times of just 5–15 days.
- Manufacturer-Direct Value — By working directly with manufacturers, we provide fair pricing without compromising on materials or quality control.
Payment & Security
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