Evinrude & Jhonson Lower Unit
Original price was: $1,326.45.$1,195.00Current price is: $1,195.00.
SKU:
ST-90-304-A
Original price was: $1,326.45.$1,195.00Current price is: $1,195.00.
SKU:
ST-90-305-A
Original price was: $1,326.45.$1,195.00Current price is: $1,195.00.
SKU:
ST-90-306-B
Original price was: $1,326.45.$1,195.00Current price is: $1,195.00.
SKU:
ST-90-306-C
Original price was: $1,548.45.$1,395.00Current price is: $1,395.00.
SKU:
ST-90-308-B
Original price was: $1,548.45.$1,395.00Current price is: $1,395.00.
SKU:
ST-90-316-A
Original price was: $1,825.95.$1,645.00Current price is: $1,645.00.
SKU:
ST-90-318-A
Evinrude & Johnson Lower Units
Upgrade or replace your Evinrude or Johnson outboard motor with high-quality lower units from AllBoatSupplies.com. Our aftermarket and OEM replacement lower units are designed to fit a wide range of V4 and V6 outboards (75–140HP) from 1978 to 2012. These gearcases deliver durability, reliable performance, and optimal power transfer for smooth boating in all conditions.
Replacement & Aftermarket Evinrude/Johnson Lower Units
Replacement lower units match the original manufacturer specifications, providing perfect fit, alignment, and reliability. Our aftermarket units offer premium alternatives with high-strength materials and enhanced durability. Whether you need a standard rotation, counter-rotation, or specific gear ratio unit, we have options to restore your engine's performance and extend its lifespan.
Key Features of Evinrude/Johnson Lower Units
- Durable Construction: Made from high-grade aluminum or stainless steel, resistant to corrosion in harsh marine environments.
- Precision Gearbox: Smooth gear operation for forward and reverse motion with minimal wear.
- Optimized Power Transmission: Transfers engine power efficiently to the propeller, improving performance and control.
- Counter-Rotation Options: Available for specific Magnum and Mag II models to suit your boat configuration.
- Multiple Gear Ratios: Options like 1.85:1, 2.0:1, 2.25:1 to match your boating needs, from towing to high-speed cruising.
- Compatibility: Fits a wide range of V4 and V6 Evinrude/Johnson engines (75–140HP) from 1978–2012.
- Easy Maintenance: Designed for smooth lubrication, simple inspection, and long-lasting operation.
- Warranty & Reliability: Many units come with manufacturer-backed or SEI warranty, ensuring peace of mind.
Product Comparison
| Model | HP Range | Year Range | Gear Ratio | Rotation | Price |
|---|---|---|---|---|---|
| SE304 V4 Gearcase | 85–140HP | 1978–1998 | 2.0:1 | Standard | $1,195 |
| SE305 V4 Gearcase | 75–130HP | 1995–2012 | 2.0:1 | Standard | $1,195 |
| SE306 V4 Large Case | 90–140HP | 1984–2012 | 2.25:1 | Standard | $1,195 |
| SE308 Counter-Rotation | Varies | V4 Models | Varies | Counter-Rotation | $1,395 |
| SE316 Magnum Replacement | Varies | Magnum/Mag II | 1.85:1 | Standard | $1,395 |
| SE318 Magnum Counter-Rotation | Varies | Magnum/Mag II | 1.85:1 | Counter-Rotation | $1,645 |
Frequently Asked Questions (FAQ)
1) What is a replacement Evinrude/Johnson lower unit?
Replacement lower units match the original manufacturer specifications to restore factory performance, alignment, and reliability for your outboard motor.
2) Are aftermarket lower units reliable?
Yes, premium aftermarket units meet or exceed OEM standards, providing long-lasting durability and high performance for V4 and V6 Evinrude/Johnson engines.
3) How do I choose the right gear ratio?
Choose the gear ratio based on your boating needs: lower ratios for more torque and towing, higher ratios for speed and light loads. Check your engine model and year for compatibility.
4) Do you offer counter-rotation units?
Yes, we offer counter-rotation lower units for specific Magnum and Mag II models to match your boat's propeller setup.
5) How do I maintain my lower unit?
Regularly inspect gears and bearings, lubricate moving parts, replace worn seals, and keep the unit clean to ensure long-term reliability.
For any inquiries or if you need help selecting the right lower unit, call us at 888-812-6287. Our experts are ready to assist you!