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Auto Specialties Underdrive Crankshaft Pulleys

4.85 out of 5 stars 47 Customer Reviews

Auto Specialties underdrive crankshaft pulleys increase engine horsepower by reducing the amount of power required to drive external accessories. All pulleys are CNC-machined from billet steel or aluminum, exceeding factory quality.

Results 1 - 6 of 6

Crankshaft Pulley, Serpentine, 6-Groove, Steel, Nitride, Ford, Mercury, 5.0/5.8L, Each

Part Number: ASP-520100

5.0 out of 5 stars ( 5 )

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Crankshaft Pulley, Serpentine, 6-Groove, Steel, Nitride, Chevy, GMC, SUV, Pickup, 4.3/5.0/5.7L, Each

Part Number: ASP-541000

4.93 out of 5 stars ( 14 )

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Crankshaft Pulley, Serpentine, 6-Groove, Steel, Nitride, Ford, 5.0L, Each

Part Number: ASP-523500

5.0 out of 5 stars ( 8 )

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Crankshaft Pulley, Underdrive, Serpentine, 6-groove, Aluminum, Black, 4.850 in. O.D., Chevy, GMC, 2.2L, Each

Part Number: ASP-840127

5.0 out of 5 stars ( 4 )

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Crankshaft Pulley, Serpentine, 7-Groove, Steel, Black, Dodge, 3.9, 5.2, 5.9L, Each

Part Number: ASP-504500

4.4 out of 5 stars ( 5 )

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Crankshaft Pulley, Serpentine, 15 Percent Overdrive, Aluminum, for Nissan, 2.4L, Each

Part Number: ASP-331080

Not Yet Reviewed

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