18-9874 - Tool, 91-14311A2

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Sierra Marine

18-9874 Drive shaft Preload Tool

Replaces: Mercury Marine 91-14311A2,
91-44307A1, 91-14311A04, 91-14311A1
• Preloads drive shaft bearing when checking
pinion height and backlash
• Compatible Drive Units and Outboards: MC-I,
R-MR, Alpha One, Alpha One/Gen II


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Sierra Marine Drive Shaft Preload Tool is equivalent to parts:

Sierra Marine is the market leader for aftermarket marine engine parts. Sierra products cover every major engine brand. Sierra offers a comprehensive product line and an unsurpassed customer satisfaction warranty covering parts and labor.