1623-859399T13 Quicksilver Gearcase Black, 1.75 Gear Ratio, 20" shaft. 12 pinion teeth, Standard Rotation (RH) 13‑Spline driveshaft.
Fits Mercury or Mariner 200, 225, 250 horsepower 3.0L OptiMax/DFI outboards.
(serial # 1B504988 and prior)
Quicksilver offers 100% genuine OEM gearcases for many Mercury and Mariner applications between 40‑300 HP. This is a genuine original factory part.
1623-859399T13 Quicksilver Gearcase Black, 1.75 Gear Ratio, 20" shaft. 12 pinion teeth, Standard Rotation (RH) 13‑Spline driveshaft.
Fits Mercury or Mariner 200, 225, 250 horsepower 3.0L OptiMax/DFI outboards.
(serial # 1B504988 and prior)
Quicksilver offers 100% genuine OEM gearcases for many Mercury and Mariner applications between 40‑300 HP. This is a genuine original factory part.