Feature Superior Quality Made of premium sturdy steel with zero friction ball bearing head to provide smooth powerful operation, finally constructed with slick finish, durable and anti corrosion for lasting service time. Perfect Fitment Works on Non Verado Mercury (1.5"x16) and Yamaha Outboards. Direct Replacement Alternative to Mercury OEM 91-849154T1 and Yamaha OEM YB-06139 (5.3L V8, 4.2L V6). Equivalent to original one both in function and performance. Satisfaction Guarantee .