Water Pump Impeller – Fits Honda BF35/BF40/BF45/BF50/BF60 Outboards (Replaces 19210-ZV5-003)
Water Pump Impeller – Fits Honda BF35/BF40/BF45/BF50/BF60 Outboards (Replaces 19210-ZV5-003) is backordered and will ship as soon as it is back in stock.
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Delivery and Shipping
Delivery and Shipping
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Water Pump Impeller – Fits Honda BF35/BF40/BF45/BF50/BF60 Outboards...
Water Pump Impeller – Fits Honda BF35/BF40/BF45/BF50/BF60 Outboards (Replaces 19210-ZV5-003) is backordered and will ship as soon as it is back in stock.
Product Details
This replacement Water Pump Impeller – Fits Honda BF35/BF40/BF45/BF50/BF60 Outboards (Replaces 19210-ZV5-003) is designed for reliable performance in Honda 4-stroke outboard engines from 35 HP to 60 HP, covering models from 1997 to the present. It ensures your engine’s cooling system functions efficiently, preventing overheating and potential damage.
This part serves as a direct replacement for Honda OEM part #19210-ZV5-003 and Sierra aftermarket part #18-3248, providing a precise fit and function.
- Installs as a direct replacement for the original part.
- Constructed from durable neoprene rubber for a long service life.
- Features a key-driven design with a solid center metal hub for secure engagement.
Part Number Matrix
Use this matrix to confirm equivalent references across OEM and aftermarket.
| Brand | Part Number |
|---|---|
| Honda | 19210-ZV5-003 |
| Sierra | 18-3248 |
Engine & Model Compatibility
Confirm your engine model/year in the table below.
This impeller fits a range of Honda outboard models. Please verify your specific model and year against the chart.
| Brand | Model | Rated HP | Stroke | Years | OEM Part No. | Notes |
|---|---|---|---|---|---|---|
| Honda | BF35 | 35 | 4-Stroke | 1997–present | 19210-ZV5-003 | |
| Honda | BF40 | 40 | 4-Stroke | 1997–present | 19210-ZV5-003 | |
| Honda | BF45 | 45 | 4-Stroke | 1997–present | 19210-ZV5-003 | |
| Honda | BF50 | 50 | 4-Stroke | 1997–present | 19210-ZV5-003 | |
| Honda | BF60 | 60 | 4-Stroke | 1997–present | 19210-ZV5-003 |
Technical Specs
- Product Type
- Water Pump Impeller
- Installation
- Direct Replacement
- Housing Material
- Rubber (Neoprene)
- OEM Part Number
- 19210-ZV5-003
- Other Technical Attributes
- Key-driven design with center metal hub
What’s in the Box
- 1 x Water Pump Impeller (19210-ZV5-003)
Installation Notes
- Disconnect the negative battery cable before beginning work.
- Remove the lower unit (gearcase) from the outboard motor.
- Unbolt and carefully lift the water pump housing, noting the orientation of the old impeller vanes.
- Remove the old impeller, woodruff key, and any existing gaskets or wear plates.
- Thoroughly clean the interior of the pump housing and all mating surfaces.
- Install the new gasket and wear plate (if included/required).
- Place the new woodruff key in its slot on the driveshaft.
- Slide the new impeller onto the driveshaft. Rotate the shaft clockwise while pushing down to correctly fold the vanes.
- Lubricate the inside of the pump housing with a water-based lubricant or marine grease before reinstalling it.
- Tighten the housing bolts to the manufacturer's specified torque.
- Reinstall the lower unit onto the outboard, and reconnect all linkages.
- Reconnect the battery and test the engine on a water supply to confirm a strong water stream from the tell-tale outlet.
Troubleshooting & FAQ
How do I know if this impeller fits my Honda outboard?
This impeller is made for Honda 4-stroke models from 35 HP to 60 HP (including BF35, BF40, BF45, BF50, and BF60) manufactured from 1997 to present. The simplest way to confirm is to check if your engine's service manual lists 19210-ZV5-003 as the required part number.
What are the signs of a failing water pump impeller?
Common symptoms include a weak or no water stream from the "tell-tale" pisser outlet, the engine overheating alarm activating, or steam coming from the exhaust. Upon physical inspection, a failing impeller may appear dry, cracked, have broken vanes, or be permanently deformed.
How often should I replace my outboard's impeller?
For preventative maintenance, it is highly recommended to inspect the impeller annually and replace it every 1-2 years or after every 100-200 hours of operation. More frequent replacement may be necessary if you operate primarily in saltwater or in water with high levels of sand or silt.
Is lubrication required during installation?
Yes. To prevent damage to the new impeller on initial startup, apply a light coat of water-resistant marine grease or a simple water-and-soap solution to the inside of the pump housing and to the impeller vanes. This ensures a smooth first run before water circulates.
What's the main difference between this and an OEM part?
This is a an aftermarket part built to meet or exceed OEM specifications for performance and fit. It offers a cost-effective alternative to the genuine brand-name part without sacrificing quality or reliability.
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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