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Mercruiser Heat Exchanger with 4" Lower Tank for Mercruiser GM small block with rear mount 4 inch tank diameter, 18-1/2 inches overall length. For 305, 350 engines. Replaces Mercruiser OEM part #78094
Bearing replaces MerCruiser part # 31-32898T
End Cup Gasket (5 per pack) replaces MerCruiser part # 27-807218
Used w/ end caps w/ water hose connections
Gasket replaces Mercury/Mariner/Force part # 27-41670006
For 15, 18, 20, 25 HP 2-Cyl. Cyl. Block to Mounting Plate
SCREW Mercruiser 10-81742780
Supersedes: 10-40062159, 10-4009580
GASKET Mercruiser 27-803663026
GASKET Mercruiser 27-803663027
GASKET Mercruiser 27-803663028
GASKET Mercruiser 27-805842
GASKET Mercruiser 27-8095681