Genuine Generac / DR Power OEM Part: Guarantees absolute structural integrity, correct offset depth, and exact groove-track matching compared to generic aftermarket pulleys.
Premium Sealed Bearing: Equipped with a precision-ground internal ball bearing assembly that keeps fine grit, grass clippings, and moisture out for a long service life.
True V-Groove Track: Formulated with precise sidewall angles to cradle 3L-profile V-belts cleanly, eliminating friction-induced belt slippage and sidewall wear.
Heavy-Duty Construction: Built from high-strength materials engineered to handle constant belt-tension loads and resist warping under elevated engine bay temperatures.
Vibration and Noise Reduction: Restores smooth, quiet spin mechanics to help eliminate annoying frame hum and protect surrounding drive components from premature wear.
Part Number: 310921
Manufacturer: Generac Power Systems / DR Power (OEM)
Pulley Type: V-Groove Idler Pulley
Outside Diameter (OD): 2.0 in.
Belt Profile Match: 3L V-Belt
Inner Diameter (ID): 10mm (Bearing Center Hole)
Overall Width: 5/8 in. (Centered bearing with no offset)
Genuine Generac / DR Power OEM Part: Guarantees absolute structural integrity, correct offset depth, and exact groove-track matching compared to generic aftermarket pulleys.
Premium Sealed Bearing: Equipped with a precision-ground internal ball bearing assembly that keeps fine grit, grass clippings, and moisture out for a long service life.
True V-Groove Track: Formulated with precise sidewall angles to cradle 3L-profile V-belts cleanly, eliminating friction-induced belt slippage and sidewall wear.
Heavy-Duty Construction: Built from high-strength materials engineered to handle constant belt-tension loads and resist warping under elevated engine bay temperatures.
Vibration and Noise Reduction: Restores smooth, quiet spin mechanics to help eliminate annoying frame hum and protect surrounding drive components from premature wear.
Part Number: 310921
Manufacturer: Generac Power Systems / DR Power (OEM)
Pulley Type: V-Groove Idler Pulley
Outside Diameter (OD): 2.0 in.
Belt Profile Match: 3L V-Belt
Inner Diameter (ID): 10mm (Bearing Center Hole)
Overall Width: 5/8 in. (Centered bearing with no offset)