Sierra's™ synthetic blend lower unit gear lube is a GL-5 rated marine lubricant designed to protect high performance outboards & I/O's.

• Sierra™ synthetic blend gear lube
• Engineered to protect gears, bearings, and internal gearcase components of outboards and stern drives under high load operating conditions
• Formulated to surpass the performance of OEM high performance lubricants
• 1 quart bottle
• 80W-90 weight
• GL-5 rated
• Blue-green color
• Replaces Mercury Quicksilver Hi-Performance Blend lubricant, OMC Ultra-HPF Blend lubricant, and Yamaha Yamalube LUB-GEARL-11-00 lubricant
• Optional gear lube pump P/N 18-9781 – sold separately
• Replaces Mercury 92-858064K01
• Replaces OMC/Johnson/Evinrude 778755
• Replaces Bel-Ray 99740-BT1
• Replaces Mallory 9-82501