Checking the gear lube level of the lower unit of your outboard or sterndrive, changing the gear lube or even topping it usually means you're in for messy job. But the new Lower Unit Fill/Drain Kit from Sierra might change all of that. . This kit features two fittings that permanently replace the upper vent plug and lower drain plug in your Mercury or Evinrude/Johnson outboard or stern drive lower unit. They are machined from marine-grade 304 stainless steel for corrosion resistance in salt water. Each features a ball check valve that prevents any outward flow of lubricant, and the lower drain plug fitting comes with a debris cap for protection. In addition, the lower fitting contains a small magnet that attracts and holds metal particles suspended in the gear lube.Service adapters are provided for each ...![Sport Fishing Mag]()
