Sierra 18-3517 Water Pump Kit with Housing for Mercury MerCruiser Alpha One

The Sierra 18-3517 is a complete water pump rebuild kit designed for Mercury/Mariner outboards and MerCruiser stern drives. This kit does not include the base and is designed for use with Mercury/Mariner 65 HP (4 cylinder) through V6 outboards with short-vane impellers. It is also designed for use with Mercruiser I, R, MR, and Alpha stern drives (s/n 2495186-0D469858).

Complete Kit Includes:

• Sierra 18-3116 Water Pump Housing (upper housing)
• Sierra 18-3017 Impeller
• Sierra 18-3117 Impeller Plate
• Sierra 18-3109 Water Tube Guide
• Multiple gaskets: 18-2801, 18-2826, 18-2914, 18-2915, 18-2919
• Sierra 18-2944 Seal Ring
• (2) Sierra 18-2945 Drain Screw Gaskets
• Five O-rings: 18-7158, 18-7162, 18-7173, 18-7176, 18-7426, plus one additional O-ring

Sierra packages their water pump kits to make the task of rebuilding a water pump quick and easy. The kit comes complete with all the necessary replacement parts and gaskets so you don't have to waste time hunting down each individual O-ring or gaskets. Sierra high quality aftermarket parts are manufactured to meet or exceed OEM requirements.

OEM Cross-References: Replaces GLM 12280; Mallory 9-48311; Mercruiser Stern Drive 46-32437A3, 46-37433A1, and 46-96148A8; and Mercury Marine 46-32437A1, 46-37433A1, 46-42579A4, 46-44292A4.

Note: Water pump base is sold separately (Sierra 18-3320 for MerCruiser applications).