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The white box to the right can be typed in just like a search engine. If you are looking for a "manifold" you would type "mercruiser manifold", to find an alternator type "omc alternator" in the box, also you can type in part numbers or brief descriptions. The box is pointed out by the Red Arrow above. There is a button next to the white box that makes the site "Find It" (search). Click this button or hit the "Enter / Return" key on your keyboard....AFTER you type in the box. We also have a special section on our site for Transmissions, Type "vd" and hit "Enter/Return".

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Impeller Mercury Mariner and Mercruiser #1 R MR Alpha One 47-89984T4


  • Part #: SIE18-3017

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Impeller for all Mercruiser I/O 1991 & prior (# 1, R, MR, Alpha One.

Also Fits Mercury and Mariner outboard 65 HP 4 cylinder and up with short vane impellers.

Fits most V6 with plastic water pump housing.

Mercury # 47-89984T4
GLM # 89840
Mallory # 9-45306


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