Drive Shaft Adapter For Mercury Mercruiser Alpha 1 Gen 2 90220 18-9854 91-56775T Fearures APPLICATION: Perfectly applies to Mercury Marine Outboard engine with 13 splines driveshaft, Mercruiser MC-1, R-MR, Alpha One, Alpha One Gen II drive units. MATERIAL: Made of premium heavy duty steel material, through hardened processing for excellent strength and toughness, anti-wear, rust resistance, anti-oxidation, sturdy and durable. Function: This Drive Shaft Adapter Spline tool provides a wrench surface to turn the drive shaft on MC-1/Alpha One/Alpha One Gen II drive units. Replacement: .
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