1、Replace Frequency: Flexible pump impellers should be replaced at least once every year or depending on the engine situation, as one of the most vital components of the engine cooling system. 2、Size Description: External impeller overall diameter is 91.34mm, and has 6 blades, height is 25.30mm, internal insert hub diameter 19.21mm. 3、Reliable: Flexible water pump impeller has a rigorous quality process to ensure reliable, efficient and durable performance, for satisfying using. 4、Application: Suitable for marine water pumping work such as engine cooling, water transfer and bilge water pumping purposes, work for fresh or sea water. 5、Suitable Model: Impellers was used on replacement for Johnson outboard motors, 55HP 1968‑1969, 60HP 1970‑1971, 65HP 1972‑1973, 70HP 1947‑1978, 75HP 1974‑1978; Fits replacement for Sierra Marine 18‑3082, replacement for SEI Marine 96‑366‑03AE, replacement for Mallory Marine 9‑45213, replacement for GLM 89940; Can be replacement for Johnson / replacement for OMC / replacement for BRP Outboard Motor water pump part 382547 / 0382547 / 0765431. Item Type: Water Pump Impeller Material: Rubber + Brass Application: For Outboard Impeller Replacement And Refurbishment Product Size: Depth: Approx.25.30mm/1.0in (1in) Total Outer Impeller Diameter: Approx.91.34mm/3.6in(3 19/32in) Inner Insert Hub Diameter: Approx.19.21mm/0.8in(3/4in) Weight: Approx.101g/3.6oz Blade Number: 6 Replacement: 82547 765431 777824 0382547 0765431 0777824 18-3082 Fits: Replacement For Johnson / Replacement For OMC / Replacement For BRP 55HP 60HP 65HP 70HP 75HP Outboard Engine, Fits Replacement For Mallory 9-45213 / Replacement For GLM 89940 1 x Pump Impeller