Water Pump Impeller – Fits Honda BF35/BF40/BF45/BF50/BF60 Outboard Motors (Replaces 19210-ZV5-003)
Water Pump Impeller – Fits Honda BF35/BF40/BF45/BF50/BF60 Outboard Motors (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
Orders are typically processed within 1–2 business days.
U.S. orders usually arrive within 6–15 days, depending on stock location and destination.
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Water Pump Impeller – Fits Honda BF35/BF40/BF45/BF50/BF60 Outboard ...
Water Pump Impeller – Fits Honda BF35/BF40/BF45/BF50/BF60 Outboard Motors (Replaces 19210-ZV5-003) is backordered and will ship as soon as it is back in stock.
Product Details
This high-quality Water Pump Impeller – Fits Honda BF35/BF40/BF45/BF50/BF60 Outboard Motors is engineered for Honda Marine 4-stroke outboard engines from 35 HP to 60 HP (1998–present). It serves as a crucial component for maintaining optimal engine cooling and preventing overheating.
This part provides a direct replacement for several part numbers, including Honda 19210-ZV5-003, Sierra 18-3248, CEF 500338, Mallory Marine 9-45103, and Tohatsu HZV5-19210-003.
- Installs as a direct replacement for compatible models.
- Constructed from high-quality neoprene for durability in marine environments.
- Features a 6-blade design for efficient water flow and cooling.
Part Number Matrix
Use this matrix to confirm equivalent references across OEM and aftermarket brands.
| Brand | Part Number |
|---|---|
| Honda | 19210-ZV5-003 |
| Sierra | 18-3248 |
| CEF | 500338 |
| Mallory Marine | 9-45103 |
| Tohatsu | HZV5-19210-003 |
Engine & Model Compatibility
Confirm your engine model and year in the table below to ensure correct fitment.
This impeller is designed for a wide range of Honda 4-stroke outboard motors from 35 HP to 60 HP.
| Brand | Model | Rated HP | Stroke | Years | OEM Part No. |
|---|---|---|---|---|---|
| Honda | BF35, BF35A, BF35AM | 35 | 4-Stroke | All years | 19210-ZV5-003 |
| Honda | BF40A, BF40A1, BF40A2, BF40A3, BF40A4 | 40 | 4-Stroke | All years | 19210-ZV5-003 |
| Honda | BF40AX, BF40AY, BF40B, BF40B2, BF40BX | 40 | 4-Stroke | All years | 19210-ZV5-003 |
| Honda | BF40D, BF40DK2, BF40DK4, BF40E | 40 | 4-Stroke | All years | 19210-ZV5-003 |
| Honda | BF45, BF45A, BF45AM | 45 | 4-Stroke | All years | 19210-ZV5-003 |
| Honda | BF50A, BF50A1, BF50A2, BF50A3, BF50A4 | 50 | 4-Stroke | All years | 19210-ZV5-003 |
| Honda | BF50AX, BF50AY, BF50D, BF50DK2, BF50DK4 | 50 | 4-Stroke | All years | 19210-ZV5-003 |
| Honda | BF60A, BF60AK1, BFP60A, BFP60AK1 | 60 | 4-Stroke | All years | 19210-ZV5-003 |
Technical Specs
- Product Type
- Water Pump Impeller
- Installation
- Direct replacement
- Housing Material
- Neoprene
- Dimensions
- 55.9 mm outer diameter × 17.2 mm inner diameter × 20.2 mm height
- Number of Blades
- 6
- Other Technical Attributes
- High-quality neoprene material for durability in marine environments
What’s in the Box
- 1 x Water Pump Impeller (19210-ZV5-003)
- 1 x Impeller Key (90752-ZV5-003) - Note: included with some packages.
Installation Notes
Follow these generic steps for impeller replacement. Always consult your service manual for model-specific instructions.
- Disconnect the engine's battery and remove the negative terminal first.
- Place a drain pan under the lower unit and remove the gear oil drain/fill screws to empty the oil.
- Remove the bolts connecting the lower unit (gearcase) to the engine's upper housing.
- Carefully lower and detach the lower unit from the driveshaft housing.
- Locate and unbolt the water pump housing cover.
- Note the rotational direction of the existing impeller blades before removing the old impeller and key.
- Clean the inside of the pump housing and inspect it for wear, scoring, or corrosion.
- Lightly lubricate the new impeller and the inside of the housing with marine grease.
- Install the new impeller key and slide the new impeller into place, turning the driveshaft in its normal operating direction to seat the blades correctly.
- Reassemble the water pump housing, ensuring a proper seal.
- Reattach the lower unit to the engine and refill it with the correct grade of gear oil.
- Reconnect the battery, starting with the positive terminal. Test run the engine with a water supply.
Troubleshooting & FAQ
How do I know if this impeller fits my Honda outboard?
The best way to confirm fitment is to check your OEM part number against the references in our Part Number Matrix. You should also verify your engine's model and year against our Engine & Model Compatibility table.
What are the signs of a failing water pump impeller?
Common signs include a weak or non-existent water stream from the "telltale" outlet, engine overheating alerts, and a decrease in overall engine performance. A worn, cracked, or brittle impeller cannot pump water effectively.
How often should I replace my outboard's impeller?
As a general maintenance rule, it is recommended to inspect your impeller annually and replace it every 1-2 years or every 100-200 hours of operation, whichever comes first. This interval can be shorter if you operate in sandy, silty, or saltwater conditions.
Is the impeller key always included in the package?
Our packages typically include the impeller key, but this can vary. Please refer to the "What's in the Box" section. If a key is critical for your installation, confirm its inclusion before ordering or plan to reuse your existing one if it's in good condition.
What is the main difference between this and an OEM part?
This is an aftermarket part designed to meet or exceed OEM specifications for fit, form, and function. It offers comparable performance and material quality to the original manufacturer's part but at a more competitive price point.
Can I install this impeller myself?
While many boat owners with mechanical experience can perform the replacement, it involves disassembling the lower unit of your outboard. For safety and to ensure correct installation, we recommend professional installation if you are not familiar with the process.
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 and specifications against 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.
Payment & Security
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