SE308 Counter Rotation Unit | 90-308-B | Johnson Evinrude

SE308 Counter Rotation Unit | 90-308-B | Johnson Evinrude

$1,395.00
$1,548.45
$1,395.00
(-10%)
SKU: ST-90-308-B
Key Features :
  • Premium Saltwater Corrosion Resistant Finish
  • Precision Engineered 1.83:1 Gear Ratio
  • Backed By 3-Year Fault-Free Warranty
Please hurry! Only 99 left in stock
Subtotal: $1,395.00
SE308 Counter Rotation Unit | 90-308-B | Johnson Evinrude

SE308 Counter Rotation Unit | 90-308-B | Johnson Evinrude

$1,548.45 $1,395.00
SE308 Counter Rotation Unit | 90-308-B | Johnson Evinrude

SE308 Counter Rotation Unit | 90-308-B | Johnson Evinrude

$1,548.45 $1,395.00

    Stop letting gearcase failure ground your twin-engine setup. This Premium Aftermarket Replacement for Johnson and Evinrude outboards delivers precision handling with a 1.83:1 Gear Ratio and a dedicated Counter-Rotation design to get you back on the water quickly and reliably. Transitioning to a sleek, universal Black Finish, this heavy-duty unit is built to withstand demanding marine environments.

    • Twin-Engine Setups: Essential for balanced steering and matched dual-outboard performance.

    • Offshore Cruising: Heavy-duty construction handles the rigors of deep-water navigation.

    • Direct Repower: Seamless replacement for worn or damaged 1988-2001 OMC counter-rotation lower units.

    • Brand: SEI
    • Part Number: SE308 (90-308-B)
    • Cross-Reference/OEM: Premium Aftermarket Replacement for Johnson/Evinrude
    • Engine Compatibility: Johnson / Evinrude (135HP - 250HP)
    • Year Range: 1988–2001
    • Gear Ratio: 1.83:1
    • Physical Specs: Counter-Rotation, Painted Black
    • Fits 1988-2001 Johnson and Evinrude outboards (135HP, 150HP, 175HP, 200HP, 225HP, and 250HP).
    • Direct replacement exclusively for models requiring a 1.83:1 Gear Ratio and Counter-Rotation setup.
    • Shaft & Spline Verification: Always verify your exact Shaft Length (e.g., 25" or 30" models) and upper driveshaft Tooth/Spline Count before ordering to prevent incorrect fitment.
    • Thrust Washer Check: You MUST use the correct thrust washer size (e.g., 98-306-40 for 3-blade OMC props or OEM #0126869 for 4-blade props).

    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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