Please Carefully Check All Pictures and Part Numbers in the Listing to Make Sure It's the Correct Product you Need

Part Number:
For Mercury Mariner 817275Q05 817275A4 817275T4 817275Q4 817275K05 817275A3 17275A5 

For Sierra 18-3147

For Mallory 9-48315

For GLM 12414 

Applications:
For Mercury Mariner Mercruiser Alpha 1 Gen 2 200 225 250 HP 300 HP 3.0L outdrives approximately 1992+ Serial Number 0D469859 / D469859 and above

For Sierra Mercruiser Mercury Alpha Gen 2 water pump kit With Housing

For Gen 2 Alpha outdrives approx 1992+

Product Information:
Kit contains gaskets, o-ring, plates, impeller, key, water guide fittings and upper housing for easy installation with common tools

Package Included: Water Pump Impeller Kit x 1

It Is a Replacement Part, Not Original Part. But It Can Work Good For You