GM Saginaw Power Steering Pump Pulley, 1/2" Single-Groove Aluminum - Black
This is a black billet aluminum single-groove pulley built for GM Saginaw power steering pumps with a 5/8" keyed shaft, sized for 1/2" wide V-belts. It bolts onto Saginaw P-series pumps used across GM accessory drive systems running a 1/2" belt, including small block and big block Chevy setups.
This pulley is a common replacement for a worn, cracked, or wrong-width pulley, and is also used when building a fresh Saginaw pump drive on street rod, hot rod, restoration, and custom accessory drive builds. It's commonly paired with Saginaw pumps found on Camaro, Chevelle, Nova, C10/C20, and GMC C/K trucks running a standard-drive (non-underdrive, non-overdrive) 1/2" belt setup.
This is a standard-drive pulley only — not underdrive or overdrive — and it is not compatible with press-fit Saginaw pump shafts or GM Type II (TC) power steering pumps. Confirm belt width, shaft type, and pulley offset before ordering, since this pulley is sized for 1/2" belts and will not properly seat a 3/8" belt. Hardware is not included. Sold individually.
Billet Aluminum Pulley Sized for 1/2" V-Belt Drives
Machined from black billet aluminum with a single-groove design, this pulley is built to mount on the keyed 5/8" shaft used by GM Saginaw power steering pumps, sized specifically for 1/2" wide V-belts — the wider belt spec used on many small and big block Chevy accessory drives.
Right Belt Width Prevents Slip, Squeal, and Premature Wear
Running the wrong belt width on a power steering pulley can cause slipping, squealing, or premature belt wear, leading to inconsistent steering assist. This pulley's 1/2" groove is matched to wide V-belt accessory drives, helping maintain proper belt seating and consistent tension.
COMPATIBLE WITH
GM SAGINAW POWER STEERING PUMPS
• GM Saginaw power steering pumps with a 5/8-inch keyed shaft
• GM Saginaw P-Series power steering pumps
• GM V-belt accessory drive systems using a 1/2-inch V-belt
• Street rod and hot rod applications using a GM Saginaw power steering pump
• Custom accessory drive systems using a keyed Saginaw pump
COMMON VEHICLE APPLICATIONS
Chevrolet Small Block V8 accessory drives
Chevrolet Big Block V8 accessory drives
Chevrolet Camaro
Chevrolet Chevelle
Chevrolet Nova
Chevrolet C10 / C20 Trucks
GMC C/K Series Trucks
NOTES
• Designed for GM Saginaw power steering pumps with a 5/8-inch keyed shaft.
• Standard-drive pulley (not underdrive or overdrive).
• Hardware not included.
• Verify shaft diameter, pulley attachment style (keyed), pulley offset, groove width, and belt alignment before installation.
• Not compatible with press-fit Saginaw pump shafts.
• Not compatible with GM Type II (TC) power steering pumps.
SPECIFICATIONS
Pump Style: Saginaw
Pulley Style: V-Belt
Groove Belt Width: 1/2"
Groove Quantity: 1
Pulley Attachment: Keyway
Keyway Bore: 5/8"
Pulley Material: Aluminum
Outside Diameter: 5.750"
Underdrive: No
Overdrive: No
Hardware: Not Included
Quantity: Sold Individually
Product Information
Product Information
Shipping & Returns
Shipping & Returns
Description
This is a black billet aluminum single-groove pulley built for GM Saginaw power steering pumps with a 5/8" keyed shaft, sized for 1/2" wide V-belts. It bolts onto Saginaw P-series pumps used across GM accessory drive systems running a 1/2" belt, including small block and big block Chevy setups.
This pulley is a common replacement for a worn, cracked, or wrong-width pulley, and is also used when building a fresh Saginaw pump drive on street rod, hot rod, restoration, and custom accessory drive builds. It's commonly paired with Saginaw pumps found on Camaro, Chevelle, Nova, C10/C20, and GMC C/K trucks running a standard-drive (non-underdrive, non-overdrive) 1/2" belt setup.
This is a standard-drive pulley only — not underdrive or overdrive — and it is not compatible with press-fit Saginaw pump shafts or GM Type II (TC) power steering pumps. Confirm belt width, shaft type, and pulley offset before ordering, since this pulley is sized for 1/2" belts and will not properly seat a 3/8" belt. Hardware is not included. Sold individually.
Billet Aluminum Pulley Sized for 1/2" V-Belt Drives
Machined from black billet aluminum with a single-groove design, this pulley is built to mount on the keyed 5/8" shaft used by GM Saginaw power steering pumps, sized specifically for 1/2" wide V-belts — the wider belt spec used on many small and big block Chevy accessory drives.
Right Belt Width Prevents Slip, Squeal, and Premature Wear
Running the wrong belt width on a power steering pulley can cause slipping, squealing, or premature belt wear, leading to inconsistent steering assist. This pulley's 1/2" groove is matched to wide V-belt accessory drives, helping maintain proper belt seating and consistent tension.
COMPATIBLE WITH
GM SAGINAW POWER STEERING PUMPS
• GM Saginaw power steering pumps with a 5/8-inch keyed shaft
• GM Saginaw P-Series power steering pumps
• GM V-belt accessory drive systems using a 1/2-inch V-belt
• Street rod and hot rod applications using a GM Saginaw power steering pump
• Custom accessory drive systems using a keyed Saginaw pump
COMMON VEHICLE APPLICATIONS
Chevrolet Small Block V8 accessory drives
Chevrolet Big Block V8 accessory drives
Chevrolet Camaro
Chevrolet Chevelle
Chevrolet Nova
Chevrolet C10 / C20 Trucks
GMC C/K Series Trucks
NOTES
• Designed for GM Saginaw power steering pumps with a 5/8-inch keyed shaft.
• Standard-drive pulley (not underdrive or overdrive).
• Hardware not included.
• Verify shaft diameter, pulley attachment style (keyed), pulley offset, groove width, and belt alignment before installation.
• Not compatible with press-fit Saginaw pump shafts.
• Not compatible with GM Type II (TC) power steering pumps.
SPECIFICATIONS
Pump Style: Saginaw
Pulley Style: V-Belt
Groove Belt Width: 1/2"
Groove Quantity: 1
Pulley Attachment: Keyway
Keyway Bore: 5/8"
Pulley Material: Aluminum
Outside Diameter: 5.750"
Underdrive: No
Overdrive: No
Hardware: Not Included
Quantity: Sold Individually
