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Mercury-Mercruiser 840971A1 VALVE ASSY
These surface mounted Barrel Bolts provide additional security as either a primary or back-up locking system
Impellers used by Original Equipment Manufacturers for over 50 years with the strict tolerances that deliver maximum performance in engine cooling
It is recommended to strike the boot top 2"- 4" above the waterline
Easily cleans with soap and water
NGK Spark Plugs, BKR7ES11 #4952, 4/pk New Mercury-Mercruiser 840971A1 VALVE ASSYStandard spark plugs are chosen by more automotive, motorcycle and marine engine manufacturers than any other. The unique copper core and exclusive electrode design assure fast starts, peak performance and long life.
