Quicksilver 5111400TP Alpha One Gen II Sterndrive 1.81 Counter Rotation Outdrive

The Quicksilver 5111400TP is an OEM-quality Alpha One Generation II complete sterndrive assembly designed for MerCruiser inboard/outboard marine engines. This counter-rotation (left-hand) outdrive features a 1.81:1 gear ratio and is engineered as a direct replacement for MerCruiser Alpha One Gen II outdrives from 1998 and newer (serial number 0L100040 and up).

Key Features:

• Genuine Quicksilver OEM replacement sterndrive for Mercury MerCruiser engines
• 1.81:1 gear ratio with counter-rotation (left-hand) configuration
• Compatible with Alpha One Gen II applications from 1991 and newer
• Designed for engines without engine-mounted seawater pumps
• Utilizes proprietary forged gear sets for durable and quiet operation
• Compatible with Flo-Torque II propeller hubs and remote drive lube reservoir systems
• Manufactured to exacting OEM standards for reliable performance

Quicksilver is the premier supplier of Mercury Marine original equipment replacement parts, delivering value repowering solutions without compromise. Each sterndrive is manufactured to deliver durable, quiet, and reliable performance on the water. This complete outdrive assembly is ideal for repowering or replacing worn MerCruiser Alpha One Gen II sterndrives on boats equipped with counter-rotating drives.

Note: Gimbal housing, trim cylinders, and propeller sold separately. Installation requires proper application knowledge—consult installation documentation for compatibility verification.