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March Performance Crankshaft Pulleys
Crankshaft Pulley, Underdrive, 3-groove, 6-bolt, Aluminum, Black, 5.500 in. O.D., Designed for Engines with A/C, Buick, 400, 430, 455, Each
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Estimated Ship Date: Oct 26, 2026 Would you rather pick it up?
Overview
Brand:
Manufacturer's Part Number:
12051-08
Part Type:
Product Line:
Summit Racing Part Number:
MCH-12051-08
Pulley Style:
V-belt
Crankshaft Pulley Bolt Hole Quantity:
Six
Groove Quantity:
3
Underdrive:
Yes
Overdrive:
No
Hardware Included:
Yes
Outside Diameter (in.):
5.500 in.
Crankshaft Nose Cover Included:
No
Pulley Material:
Aluminum
Pulley Finish:
Black
Quantity:
Sold individually.
Notes:
Designed for engines with air conditioning.
March Performance Crankshaft Pulleys
March Performance crankshaft pulleys are CNC-machined to run true. These pulleys are available in both standard and underdrive sizes. Underdrive pulleys help to increase horsepower by reducing accessory pulley rotation effort at the crankshaft.
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Some parts are not legal for use in California or other states with similar laws / regulations
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