Sierra 18-3327 Water Pump Kit with Housing for Johnson Evinrude Outboard Motors

The Sierra 18-3327 is a complete water pump rebuild kit with housing designed for Johnson and Evinrude outboard motors. This comprehensive kit includes all the components needed to restore your water pump to optimal performance, eliminating the need to source individual parts separately.

Complete Kit Contents:

• Water pump impeller (18-3050)
• Pump housing (18-3180)
• Wear plate (18-3178)
• Water pump cup (18-3179)
• Impeller key/pin (18-3326)
• Oil seal (18-2025)
• Two grommets (18-3329, 18-2392)
• Two O-rings (18-7116, 18-7139)
• Four stainless steel mounting bolts (18-3369)

OEM Cross-References: Replaces Johnson/Evinrude 394711, 386697, 391698, 387616, 389112; GLM 12050; Mallory 9-48201. Sierra products are engineered to meet or exceed original equipment specifications, ensuring reliable fit and performance.

Regular water pump maintenance is essential for preventing engine overheating and ensuring consistent cooling system performance. Marine technicians recommend servicing the water pump annually or more frequently with heavy use to maintain peak engine reliability.