Engineered Marine Products Mercury Water Pump Impeller Kit with Base for 150, 175, 200, 225 Hp V-6 1978-1985, Replaces 46-78400A2, 18-3316

Water Pump Kit (Complete) for 1978-1985 Mercury V6 Kit Includes: impeller, upper water pump housing with water pump cup already installed, water pump base, impeller wear plate and the necessary gaskets and o-rings to rebuild your water pump. Replaces Merc Part Number: 46-78400A2 Replaces Sierra Part Number: 18-3316 Fits the Following Mercury Outboard Applications: V-150 (Serial Number 5432022 - 0A904645) 1978-1985 V-175 (Serial Number 4301235 - 6618750) 1976-1985 V-200 (Except 3.0L) (Serial Number 4839034 - 6625220) 1978-1985 V-225 (Serial Number 5628028 and Up) 1980-1981