Billet Supercharger 4" Idler Pulley Universal [Suits 3" Wide Belt] and outstanding performance for muscle

and outstanding performance for muscle car

Mounting hardware is included

professional look

durable upgrade for the front of your engine

Its lightweight construction reduces engine load

Billet Supercharger 4" Idler Pulley Universal [Suits 3" Wide Belt] and outstanding performance for muscleSpeedmaster's 4 inch polished idler pulley is built for supercharger systems, delivering consistent belt tension and reliable performance. Machined from durable 6061 billet aluminum and heat treated for long lasting strength, it features two sealed single row ball bearings to ensure smooth operation under high loads. The pulley can be flipped to adjust spacing by 1 inch, making belt alignment straight forward when blower snout lengths change with