Mercruiser Outdrive Parts Drawings *How to Videos
Mercruiser water tube - Upper housing part
Water Passage Copper Tube for the Mercruiser Outdrive Cooling System
GLM P/N 12202 replaces Mercury 12202 or Sierra 18-3220Copper, measuring approximately 5-3/4"Also
included in kit 12200 listed belowCompatible with all Mecruiser models from 1964 to 1990 (does not work with Gen
2 - Alpha models)
12202 Water Tube Mercruiser 32-54236
GLM P/N 12202 $8.95
Customers who ordered P/N 12202 also purchased:
12200 Passage Kit 42724A3
P/N 11220 includes mounting base and gasket, copper water tube and screws. Replaces OEM 42724A3 or Sierra
22440 Trim Connector Screw 10-28668
P/N 22440 is used for the trim line connector junction box (4 required) and also the water passage housing
mount (2 required) in the upper gear housing. Replaces OEM 10-28668, Sierra P/N 18-3229.
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