18-3570 Sierra water pump repair kit for Mercury and Mariner outboards.
Kit Includes:
(1) 18-2599 Face Seal and Tool
(1) 18-3056 Impeller
(1) 18-3122 Impeller Plate
(1) 18-7420 O-Ring
(1) 18-2944 Seal Ring Gasket...

For: Mercury/Mercruiser
Includes both upper & lower housings, gaskets, plate and impeller.
Additional Detail:
• COMPLETE WATER PUMP
Interchange:
Mercury
• 46-8M0113799, 8M0113799