New Mercury 135-150 HP V6 Outboard Lower Unit DFI – 2:1 Gear Ratio (1979–2014) – New / Re-manufactured image 0
New Mercury 135-150 HP V6 Outboard Lower Unit DFI – 2:1 Gear Ratio (1979–2014) – New / Re-manufactured image 0

Mercury Outboard Lower Unit | 135–150 HP V6 | 2:1 Gear Ratio

$2,959.00
$3,284.49
$2,959.00
(-10%)
SKU: ME-G6-03A-N
Please hurry! Only 100 left in stock
Subtotal: $2,959.00
New Mercury 135-150 HP V6 Outboard Lower Unit DFI – 2:1 Gear Ratio (1979–2014) – New / Re-manufactured image 0

Mercury Outboard Lower Unit | 135–150 HP V6 | 2:1 Gear Ratio

$3,284.49 $2,959.00
New Mercury 135-150 HP V6 Outboard Lower Unit DFI – 2:1 Gear Ratio (1979–2014) – New / Re-manufactured image 0

Mercury Outboard Lower Unit | 135–150 HP V6 | 2:1 Gear Ratio

$3,284.49 $2,959.00
Product Type: New Lower Unit
HP/Shaft/Years/Ratio: 135-150 HP 135 DFI / L Shaft 1979-2014

    Restore the torque and acceleration of your V6 with this Premium Aftermarket Replacement gearcase, specifically optimized with a 2:1 gear ratio for maximum hole-shot performance. Engineered to fit a vast range of Mercury 2-stroke and DFI engines, this unit is built for heavy-duty durability in both offshore and coastal environments. Whether you're powering a classic carbureted V6 or a modern DFI model, this assembly ensures smooth power transfer and the rugged reliability you need to stay on the water.

    • High-Torque 2:1 Ratio: Perfectly geared for heavier hulls and high-acceleration requirements.

    • V6 Strength: Built to handle the high-load demands of 135HP and 150HP powerheads.

    • Superior Protection: Advanced marine-grade finish for maximum corrosion resistance in saltwater.

     

    • Brand: SEI
    • Part Number: SE90-206 (2.00 Ratio Series)
    • Engine Displacement: V6 2.0L, 2.4L, 2.5L
    • Horsepower Range: 135 HP, 150 HP
    • Year Range: 1979–2014
    • Gear Ratio: 2:1
    • Shaft Lengths: 20" (Long) / 25" (Extra Long)
    • Condition: Brand New Aftermarket
    • Engine Type: Mercury V6 135 HP, 150 HP, and 135 DFI 2-stroke outboards.
    • Year Range: Wide compatibility for models manufactured between 1979 and 2014.
    • Shaft Lengths: Supports 20" (L) and 25" (XL) configurations.
    • Gear Ratio: 2.00:1 (2:1).
    • Rotation: Standard (Right Hand) and Counter Rotation (Left Hand) options are available for XL shaft models; please verify your needs for twin-engine setups.
    • Driveshaft Spline: Always confirm your vertical driveshaft tooth count and shaft length before ordering, as these varied throughout the 35-year production run.
    • Maintenance: Ensure gear lube levels are checked and follow the recommended break-in period to validate your 3-Year Warranty coverage.

    Mariners Warehouse vs Others

    Built to match OEM standards while delivering reliable performance and peace of mind.

    Features

    Mariners Warehouse

    Others
    Performance ✔️ ❌
    Warranty Support Reliable warranty Limited or unclear warranty terms
    Customer Trust Trusted by thousands of marine customers Unverified buyer trust
    Pre-tested before shipping for reliability ✔️ ❌
    OEM performance standards ✔️ ❌
    Simple return process ✔️ ❌

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