Water Pump Impeller – Fits Mercury/Mariner 2/2.5/3/3.3/4/5/6 HP (Replaces 47-16154, 47-161543) 502HP Corrosion on the terminals or

Corrosion on the terminals or physical damage to the switch button are also clear indicators

Remove the cover plate to expose the old impeller

external installation design

Product Type Water Pump Impeller Installation Direct Replacement Housing Material Neoprene Rubber with Hardened Nylon Hub Shaft Size 17

There is no manufacturer-specified replacement interval for the dribble valve

Water Pump Impeller – Fits Mercury/Mariner 2/2.5/3/3.3/4/5/6 HP (Replaces 47-16154, 47-161543) 502HP Corrosion on the terminals orProduct Details The Sea Sierra Water Pump Impeller Fits Mercury Marine 2 2. 5 3 3. 3 4 5 6 HP Outboards (Replaces 47 16154, 47 161543) is an essential replacement part for specific Mercury and Mariner outboard motors. It is designed for 2 Stroke 3. 3 HP models (1993 & up), 2 Stroke 4 5 HP models (1987 & up), and 4 Stroke 4 5 6 HP models (1999 & up). This impeller directly interchanges with Mercury 47 16154 47 161543, Sierra 18 3098, Mallory 9 45302 9