SEI SE228 Counter Rotation Complete Lower Unit (Compatible with Mercury 3.0L V6, 2.6L I6, and 1.7L I4)
13 / 1.75 Reverse Rotation / 3.0L 2-Stroke / 25" Shaft
197.979,99 TL
50% OFF
395.959,99 TL
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SEI SE228 Counter Rotation Complete Lower Unit (Compatible with Mercury 3.0L V6, 2.6L I6, and 1.7L I4)
197.979,99 TL
50% OFF
395.959,99 TL
$
4,141.27
USD
€
3,584.09
EUR
VAT Included
Free Shipping
Compatible Product
Estimated Delivery
28 Business Days
Shipping
Free Shipping
Returns
14-Day Easy Returns
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The SEI SE228 Counter Rotation Complete Lower Unit is a complete aftermarket lower unit specifically designed for Mercury Outboard Motors. It directly replaces the original lower unit with OE# Not specified, and comes with all internal gears, shafts, bearings, and water pump components factory-assembled.
Advantages and Features of the SE228 Counter Rotation Complete Lower Unit
- Direct Replacement (Bolt-on): Perfectly compatible with original lower unit mounting points, requiring no extra modifications or adjustments during installation.
- Complete Solution: Comes with a pre-assembled water pump kit, gear set, seals, and bearings, reducing labor time.
- Marine-Grade Housing: Features a marine-grade alloy cast aluminum housing, highly resistant to corrosion, coated with a protective primer and paint.
Technical Specifications
| Brand | SEI (Aftermarket) |
| OEM Reference Number | Not specified |
| Compatible Systems | Mercury Outboard Motors |
| Product Group | Complete Lower Units |
Application Area and Use
It is preferred as a complete replacement instead of individual component replacement in cases of cracked lower unit housing, locked gearboxes, or major mechanical damage.
Maintenance and Installation Recommendations
After the initial installation, the gear oil must be drained and refilled with new oil after a 10-20 hour break-in period. Afterward, the oil level should be checked before each season.
Frequently Asked Questions
What is the difference between SE228 and SE221?
The SE228 is counter-rotation, while the SE221 is standard rotation. In dual engine setups, one side uses standard rotation and the other uses counter-rotation.
Which lower unit should which engine take?
In a dual engine setup, the starboard (right) engine typically uses a counter-rotation lower unit; confirm your boat's configuration with the Clever Marin team.
Is the installation kit included?
No, the installation kit and anode kit must be purchased separately.
Related Products and Categories
- Anode Products
- Gear Oil Products
- Seal Products
- Impeller Products
- Mercury Products
- Mercury Spare Parts Products
- Gear Products
- Inboard Engine Products
- Verado 175-400 HP Products
Is This the Right Product for Your Boat?
Provide your engine brand, model, and lower unit serial number to the Clever Marin team, and we will confirm together that the SEI SE228 Counter Rotation Complete Lower Unit model will work 100% with your boat.
Delivery Information
Your orders are dispatched within an average of 28 business days. Free shipping on orders of 5000 TL and above.
Return Policy
You can return the products you purchased unconditionally within 14 days, provided they are unused and in their original packaging. You can contact us through our Customer Service page for return processes.