Water Pump Impeller – Fits Mercury/Mariner 2/2.5/3/3.3/4/5/6 HP (Replaces 47-16154, 47-161543) 502HP These 3-inch block-style characters meet

These 3-inch block-style characters meet US Coast Guard (USCG) guidelines

Slide the old roller and shaft out of the mounting brackets

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

For Johnson/Evinrude Owners: This part fits certain J10 and J15 4-Stroke models that were manufactured by Suzuki

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 These 3-inch block-style characters meetProduct 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