Impeller – Fits Volvo Penta (Replaces 3854286, 835512)
Impeller – Fits Volvo Penta (Replaces 3854286, 835512) is backordered and will ship as soon as it is back in stock.
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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.).
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Delivery and Shipping
Delivery and Shipping
Free standard shipping on all orders under 1 KG
Impeller – Fits Volvo Penta (Replaces 3854286, 835512)
Product Details
This aftermarket water pump Impeller is designed for a range of Volvo Penta engines, including various 2-stroke and 4-stroke models across several years. It serves as a critical component for maintaining proper engine cooling by circulating water through the system.
This part is a direct replacement for Volvo Penta 3854286 and 835512, and interchanges with JMP 7192-01, Sherwood 09959K, and Johnson 09-701B-1.
- Engineered with 12 blades for efficient water flow.
- Drive type is a key fitting.
- Includes impeller and quad ring for a complete installation.
Part Number Matrix
Use this matrix to confirm equivalent references across OEM and aftermarket.
| Brand | Part Number |
|---|---|
| Volvo Penta | 3854286 |
| Volvo Penta | 835512 |
| JMP | 7192-01 |
| Sherwood | 09959K |
| Johnson | 09-701B-1 |
Engine & Model Compatibility
Confirm your engine model/year in the table below.
For Volvo Penta models, check your specific engine series and part number to ensure a match.
| Brand | Model | Stroke | Years | OEM Part No. |
|---|---|---|---|---|
| Volvo Penta | 3.0GLMMDA | 4-Stroke | 3854286 | |
| Volvo Penta | 3.0GSPMDA | 4-Stroke | 3854286 | |
| Volvo Penta | 3.0GSPNCS | 4-Stroke | New models | 3854286 |
| Volvo Penta | 4.3GLMMDA | 4-Stroke | 3854286 | |
| Volvo Penta | 7.4GLIMDM | 4-Stroke | 3854286 | |
| Volvo Penta | 8.2GLIMDM | 4-Stroke | 3854286 | |
| Volvo Penta | 8.2GLPMDA | 4-Stroke | 3854286 | |
| Volvo Penta | 8.2GLPMDM | 4-Stroke | 3854286 | |
| Volvo Penta | AQ200B | |||
| Volvo Penta | AQ200C | |||
| Volvo Penta | AQ225B | |||
| Volvo Penta | AQ225C |
Technical Specs
- Product Type
- Water Pump Impeller
- Dimensions
- AØ: 62.5 mm, B: 32 mm, CØ: 15.9 mm
- Fitting Type
- Key
- Number of blades
- 12
- Warranty
- 2 Years
What’s in the Box
- 1 x Water Pump Impeller Assembly (3854286/835512)
- 1 x Quad Ring (18-7480)
Installation Notes
- Ensure the engine is off and cool. Disconnect the battery.
- Close the water inlet seacock and drain the existing water from the pump housing.
- Loosen and remove the screws on the water pump cover. Note their lengths and positions if they vary.
- Carefully remove the old impeller. Use impeller pullers or two flathead screwdrivers if it's stuck.
- Clean the inside of the pump housing, removing any old gasket material, salt deposits, or debris.
- Inspect the housing for scoring or damage. If significant wear is found, the pump may need replacement.
- Apply a light coat of water-resistant grease or dish soap to the new impeller and inside the housing to ease installation.
- Insert the new impeller, making sure to bend the blades in the correct direction of the engine's rotation.
- Install the new quad ring or gasket, ensuring it is seated correctly.
- Replace the pump cover, tighten the screws in a star pattern to ensure even pressure, and reconnect hoses.
- Open the seacock, reconnect the battery, and start the engine. Immediately check for leaks and verify water is flowing from the exhaust.
Troubleshooting & FAQ
How do I know if my impeller needs replacing?
Common signs of a failing impeller include a weak or no water stream from the exhaust tell-tale, engine overheating alarms, and visible cracks or stiffness in the impeller blades during inspection. It's recommended to inspect annually and replace every 1-2 seasons, regardless of appearance.
The impeller blades are bent from the factory. Is it defective?
No, this is normal. Impeller blades are flexible and designed to be bent inside the pump housing to create pressure. Ensure you install it so the blades bend in the correct direction of the pump's rotation when the engine runs.
Can I run the engine without water after installing this impeller?
Absolutely not. Never run the water pump dry. The impeller relies on water for lubrication, and running it dry for even a few seconds can cause immediate and severe damage to the blades, leading to pump failure and potential engine overheating.
What's the difference between this and the original OEM part?
This is an aftermarket part designed to meet or exceed OEM specifications. While it offers the same fit and function, it is not sourced from the original engine manufacturer. We use high-quality materials and rigorous testing to ensure reliable performance.
Do I need any special tools for installation?
Basic hand tools like screwdrivers and a socket set are usually sufficient. In some cases, an impeller puller may be helpful if the old part is seized. Always use grease or a suitable lubricant during installation.
Which side of the impeller faces out?
For this specific key-driven impeller, the orientation is determined by the keyway slot. The side with the full-depth slot for the key should be aligned with the key in the pump shaft. Refer to your engine's service manual for specific guidance.
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 2-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.
Payment & Security
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