Neovane 1" Impeller (large) neovane and Sierra 18-3583

and Sierra 18-3583

These throttles will replace a standard Morse throttle

Please Note: Cast Iron M

If your pump is a 1/2" or 3/4" port  pump with 8 cover locating screws

Bracket will mount to rectangular or round-top windshield frames from 3/8" to 1-1/4"

Neovane 1" Impeller (large) neovane and Sierra 18-3583Neovane Impeller suit Neovane Pumps with a 1" NPT pipe thread. These pumps also have 2 screws on their covers. This Impeller is classified as a large tapered neovane impeller and has 8 splines and measures 77mm at the wide base & 64mm at the top of the splines. Supplied with cross pin to drive through shaft & a gasket. If your pump is a 1 2" or 3 4" port pump with 8 cover locating screws , you require the smaller 1 2" & 3 4" neovane impeller available