Retrofit/Replacement Idler/Tensioner Pulley, Plastic, Flanged for Electric Water Pumps LS Alternator Only Bracket Select which harmonic balancer and

Select which harmonic balancer and water pump you are using above before adding to cart

polymer pulley with flanged sides for electric water pumps

3/4″ flats to hold top while installing fitting

The distance from the engine center-line to the outside of the alternator is only 16”

Retrofit/Replacement Idler/Tensioner Pulley, Plastic, Flanged for Electric Water Pumps LS Alternator Only Bracket Select which harmonic balancer andDayco part number 89003. Polymer idler tensioner pulley with flanged edges. Works better than the smooth steel pulley if running an electric water pump. The side flanges prevent the belt from being thrown. These are also available from your local auto parts store. The diameter where the belt runs is 3. 03" Also see our Billet Aluminum pulley recommended for high HP applications.