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along with any end bells or washers
Disconnect the battery terminals to prevent accidental starting
Apply tension to the belt by tightening the alternator or tensioner
) 250 4-Stroke 0P520553-2B144122 35-893318T02 Mercury 250 VERADO (6 CYL
Water Pump Impeller Kit – Fits Mercury R/MR/Alpha One (Replaces 42724A3) 155HP along with any end bellsProduct Details This Water Pump Impeller Kit is designed for Mercury Marine R, MR, and Alpha One Generation I sterndrives manufactured between 1984 and 1990 (serial numbers 6854393 to OD469858). It provides the essential components for servicing the lower unit's water pump. It serves as a direct interchange for several original and aftermarket part numbers, including Mercury 42724A3, Mercury 46 37433A1, Sierra 18 3219, and GLM 12200. Engineered as a
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