Mercury 150 DFI Lower Unit 1979–2018 | New & Remanufactured
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Mercury 150–175–200 HP 150 DFI V6 Lower Unit (1979–2018)
The Mercury 150 DFI Lower Unit is designed to deliver power, performance, and long-lasting reliability for Mercury outboards ranging from 150 HP to 200 HP. Engineered with a 1.87:1 gear ratio, this lower unit ensures smooth and efficient propulsion, making it the perfect replacement to restore your boat’s full operational capabilities.
Key Features & Benefits
- Compatible with Mercury 150 HP, 175 HP, and 200 HP V6 outboards (including 150 DFI models).
- Supports a wide year range: 1979–2018.
- Available in New and Re-manufactured options to fit your budget.
- Offers both L (Long Shaft) and XL (Extra Long Shaft) configurations.
- Optional Counter-Rotation (C/R) models for specific setups.
- Backed by a reliable 1-Year Warranty for peace of mind.
🧾 Specifications — Features to Details
| Feature | Details |
|---|---|
| Product Type | New Lower Unit / Re-manufactured Lower Unit |
| Engine Compatibility | Mercury 150 HP, 175 HP, 200 HP V6 / 150 DFI |
| Year Range | 1979 – 2018 |
| Gear Ratio | 1.87:1 |
| Shaft Lengths | L (Long Shaft), XL (Extra Long Shaft) |
| Counter Rotation (C/R) | Available on select XL shaft models |
| Fits Models | V6 2-Stroke & 150 DFI Mercury Outboards |
| Warranty | 1-Year Warranty Included |
| Dimensions (L×W×H) | 31 × 10 × 61 inches |
| Weight | 75 lbs |
Why Choose This Mercury Lower Unit?
This lower unit is built to OEM specifications, ensuring a perfect fit and performance consistency. Whether you’re upgrading, replacing a damaged lower unit, or restoring an older Mercury outboard, this component is a reliable choice. Its 1.87:1 gear ratio optimizes power transfer for better acceleration and top-end speed.
Compatible Engines & Applications
Designed for V6 2-Stroke and 150 DFI Mercury outboards, it fits various models across four decades of production. This makes it one of the most versatile lower unit replacements available. It supports both standard and counter-rotation configurations, giving boaters flexibility based on their setup.
Warranty & Support
Each Mercury 150 DFI Lower Unit comes with a 1-Year Warranty, offering peace of mind and ensuring you’re covered against manufacturing defects. For maximum lifespan, proper installation and regular maintenance are recommended.
Conclusion
If you want to restore full power and efficiency to your Mercury outboard, the Mercury 150–175–200 HP 150 DFI V6 Lower Unit (1979–2018) is the ideal solution. With its proven reliability, compatibility, and available warranty, this lower unit ensures your boat stays on the water where it belongs.
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