Water Pump Impeller Kit – Fits Mercury/Mariner 3.9-9.8 HP (Replaces Mercury 47-89980T1) 25hp Prime the fuel system according

Prime the fuel system according to your engine's service manual and meticulously check for any fuel leaks before starting the engine

4-cylinder 4-stroke 90–140 HP (DF90

You can also consult our compatibility table and cross-reference your engine model and year

which is required for trim systems to reverse the motor's polarity and allow both up and down movement

Reconnect the throttle linkage and fuel line

Water Pump Impeller Kit – Fits Mercury/Mariner 3.9-9.8 HP (Replaces Mercury 47-89980T1) 25hp Prime the fuel system accordingProduct Details This Water Pump Impeller Kit Fits Mercury Mariner 3. 9 9. 8 HP (Replaces 47 89980T1) is designed for Mercury and Mariner 2 stroke outboard engines from 3. 9 HP to 9. 8 HP, manufactured between 1979 and 1986. It is specifically for models requiring an impeller with a 0. 438" inner diameter. This kit serves as a direct replacement for multiple OEM and aftermarket part numbers, including Mercury 47 89980T1, Sierra 18 3006, GLM 700 12271,