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Mercury-Mercruiser 840971A1 VALVE ASSY
Impellers used by Original Equipment Manufacturers for over 50 years with the strict tolerances that deliver maximum performance in engine cooling
Audible and visual alarms let the boater know when a shallow or deep water condition exist
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.
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