New OEM Mercury & Mariner V6 200-250 HP 3.0L Optimax DFI Gearcase

This listing is for a New OEM Mercury/Mariner/Quicksilver V6 Lower Unit. Fits Mercury or Mariner 200, 225, and 250 HP 3.0L Optimax/DFI outboards with serial number 1B504988 and prior. 12 pinion teeth. 13 spline driveshaft. Black. 1.75:1 Ratio. Available in the following models

• 20″, Standard Rotation
• 25″, Standard Rotation
• 25″, Counter Rotation