Water Pump Impeller for Chrysler Force 35/45/55 HP Outboard – Replaces 47-F40065-2
This high-performance replacement impeller is engineered for Chrysler Force 35 HP, 45 HP, and 55 HP outboard motors. Manufactured from premium neoprene rubber and corrosion-resistant metal alloy, it ensures reliable water pump operation and simplifies routine maintenance.
Direct replacement for OEM part number 47-F40065-2 and aftermarket equivalents including Sierra 18-3084 and Quicksilver F40065-2. Designed to meet OEM specifications for dependable cooling system performance.
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10-blade design for optimal water flow and cooling efficiency
- Precision-engineered neoprene construction resists marine and chemical corrosion
- Lightweight design (approximately 30 g) for easy installation
Part Number Cross-Reference
Use this table to confirm equivalent part numbers across OEM and aftermarket brands.
| Brand |
Part Number |
| Chrysler/Force (OEM) |
47-F40065-2 |
| Quicksilver |
F40065-2 |
| Sierra |
18-3084 |
Compatible Engine Models
Confirm your engine model/year in the table below.
| Brand |
Rated HP |
OEM Part No. |
| Chrysler/Force |
35 HP |
47-F40065-2 |
| Chrysler/Force |
45 HP |
47-F40065-2 |
| Chrysler/Force |
55 HP |
47-F40065-2 |
Technical Specifications
| Specification |
Value |
| Number of Blades |
10 |
| External Impeller Overall Diameter |
57.26 mm / 2.25 inches |
| Internal Shaft Insert Diameter |
16.00 mm / 0.63 inches |
| Impeller Weight |
Approximately 30 g |
| Material |
High-performance neoprene rubber with marine-grade metal alloy insert |
| OEM Part Number |
47-F40065-2 |
| Sierra Part Number |
18-3084 |
| Quicksilver Part Number |
F40065-2 |
Package Contents
- 1 × Neoprene Impeller (replacement for Chrysler/Force 47-F40065-2)
Installation Guide
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Disconnect the fuel line and remove the engine cowling to access the lower unit. Ensure the engine is cool before beginning work.
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Remove the lower unit from the outboard motor according to your service manual.
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Locate the water pump housing on the lower unit and remove the housing bolts.
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Extract the old impeller from the pump housing using needle-nose pliers if necessary.
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Clean the pump housing thoroughly to remove debris and old gasket material.
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Lubricate the new impeller with water pump grease to ease installation.
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Install the new impeller into the housing, ensuring blades are oriented in the correct rotation direction.
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Replace gaskets with new components as needed.
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Reassemble the water pump housing and tighten bolts to specification.
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Reinstall the lower unit onto the outboard.
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Test the engine in a test tank to verify proper water flow.
Troubleshooting & FAQ
Q: How do I confirm this impeller fits my outboard?
A: Verify your engine is rated 35, 45, or 55 HP and cross-reference with OEM part number 47-F40065-2.
Q: How often should I replace my impeller?
A: Replace annually or every 200-300 hours of operation.
Q: What are signs of impeller failure?
A: Weak water flow, engine overheating, or steam from the powerhead.
Important Notes
- Verify that product specifications match your original part before purchase.
- This is an aftermarket replacement part, not an OEM component.
- Professional installation is recommended.