Remy 20220 Alternator

Remanufactured 78 Amp Alternator for GM and Jeep Applications

Remy Premium Remanufactured alternator 20220 is a 12-volt charging component built for select Chevrolet, GMC, Pontiac, Oldsmobile, Buick, and Jeep applications from 1979-1985. It features a 78 amp output, internal voltage regulator, external fan, and clockwise rotation for direct-fit replacement in the listed vehicles.

Remy Premium Remanufactured focuses on OE-style replacement parts built around original equipment specifications. For buyers searching for a remanufactured alternator for Chevrolet S10, Jeep CJ7, or Oldsmobile Cutlass applications, part number 20220 provides a fitment-specific solution with the correct electrical and pulley configuration details called out below.

• 78 amp alternator output for 12-volt charging systems
• Remanufactured unit in Remy Premium Remanufactured line
• Internal voltage regulator
• External fan design
• Pulley included; pulley change may be required
• Clockwise rotation
• OE manufacturer reference: Delco/Delphi

Vehicle Fitment

• Fits 1984-1985 Chevrolet S10, N/A; w/Gauges; 78 Amps; Premium Remanufactured
• Fits 1984-1985 GMC S15, N/A; w/Gauges; 78 Amps; Premium Remanufactured
• Fits 1984 Chevrolet Celebrity, N/A; w/Gauges; wo/AC; 78 Amps; Premium Remanufactured
• Fits 1984 Chevrolet S10 Blazer, N/A; w/Gauges; 78 Amps; Premium Remanufactured
• Fits 1984 Pontiac 6000, N/A; wo/AC; w/Gauges; 78 Amps; Premium Remanufactured
• Fits 1983 Buick Century, N/A; w/Gauges; wo/AC; 78 Amps; Premium Remanufactured
• Fits 1983 Buick Regal, N/A; w/Gauges; 78 Amps; Premium Remanufactured
• Fits 1983 Chevrolet El Camino, N/A; w/Gauges; 78 Amps; Premium Remanufactured
• Fits 1983 Chevrolet Malibu, N/A; w/Gauges; 78 Amps; Premium Remanufactured
• Fits 1983 Chevrolet Monte Carlo, N/A; w/Gauges; 78 Amps; Premium Remanufactured
• Fits 1983 Chevrolet S10, N/A; 78 Amps alternator; Premium Remanufactured
• Fits 1983 Jeep CJ5, N/A; wo/AC; w/"R" Terminal; 78 Amps; Premium Remanufactured
• Fits 1983 Jeep CJ7, N/A; wo/AC; w/"R" Terminal; 78 Amps; Premium Remanufactured
• Fits 1983 Jeep Scrambler, N/A; wo/AC; w/"R" Terminal; 78 Amps; Premium Remanufactured
• Fits 1983 Oldsmobile Cutlass Calais, N/A; w/Gauges; 78 Amps; Premium Remanufactured
• Fits 1983 Oldsmobile Cutlass Ciera, N/A; w/Gauges; wo/AC; 78 Amps; Premium Remanufactured
• Fits 1983 Oldsmobile Cutlass Cruiser, N/A; w/Gauges; 78 Amps; Premium Remanufactured
• Fits 1983 Oldsmobile Cutlass Supreme, N/A; w/Gauges; 78 Amps; Premium Remanufactured
• Fits 1983 Pontiac 6000, N/A; w/Gauges; wo/AC; 78 Amps; Premium Remanufactured
• Fits 1983 Pontiac Bonneville, N/A; w/Gauges; 78 Amps; Premium Remanufactured
• Fits 1983 Pontiac Grand LeMans, N/A; w/Gauges; 78 Amps; Premium Remanufactured
• Fits 1983 Pontiac Grand Prix, N/A; w/Gauges; 78 Amps; Premium Remanufactured
• Fits 1982 Chevrolet Malibu, N/A; w/Gauges; wo/AC; 78 Amps; Premium Remanufactured
• Fits 1982 Chevrolet Monte Carlo, N/A; w/Gauges; wo/AC; 78 Amps; Premium Remanufactured
• Fits 1980-1982 Jeep Cherokee, N/A; Std; w/"R" Terminal; 78 Amps; Premium Remanufactured
• Fits 1980-1982 Jeep CJ5, N/A; w/"R" Terminal; 78 Amps; Premium Remanufactured
• Fits 1980-1982 Jeep CJ7, N/A; w/"R" Terminal; 78 Amps; Premium Remanufactured
• Fits 1980-1982 Jeep J10, N/A; Std; w/"R" Terminal; 78 Amps; Premium Remanufactured
• Fits 1980-1982 Jeep J20, N/A; Std; w/"R" Terminal; 78 Amps; Premium Remanufactured
• Fits 1981-1982 Jeep Scrambler, N/A; w/"R" Terminal; 78 Amps; Premium Remanufactured
• Fits 1980-1982 Jeep Wagoneer, N/A; Std; w/"R" Terminal; 78 Amps; Premium Remanufactured
• Fits 1980-1982 Oldsmobile Cutlass Calais, N/A; w/Gauges; Std; 78 Amps; Premium Remanufactured
• Fits 1980-1982 Oldsmobile Cutlass Cruiser, N/A; w/Gauges; Std; 78 Amps; Premium Remanufactured
• Fits 1980-1982 Oldsmobile Cutlass Supreme, N/A; w/Gauges; Std; 78 Amps; Premium Remanufactured
• Fits 1980-1981 Oldsmobile Cutlass, N/A; w/Gauges; Std; 78 Amps; Premium Remanufactured
• Fits 1980 Oldsmobile Cutlass Salon, N/A; w/Gauges; Std; 78 Amps; Premium Remanufactured
• Fits 1979 Oldsmobile Cutlass, N/A; w/Gauges; w/Sgl Mtg Foot; 78 Amps; Premium Remanufactured
• Fits 1979 Oldsmobile Cutlass Calais, N/A; w/Sgl Mtg Foot; w/Gauges; 78 Amps; Premium Remanufactured
• Fits 1979 Oldsmobile Cutlass Salon, N/A; w/Gauges; w/Sgl Mtg Foot; 78 Amps; Premium Remanufactured
• Fits 1979 Oldsmobile Cutlass Supreme, N/A; w/Gauges; w/Sgl Mtg Foot; 78 Amps; Premium Remanufactured

Common Replacement Uses

• Restores charging output on a vehicle with a weak or failing alternator
• Addresses battery drain caused by insufficient system voltage
• Replaces a unit with worn bearings, brushes, or internal electrical wear
• Supports gauge-equipped Chevrolet, GMC, Pontiac, Oldsmobile, Buick, and Jeep charging systems
• Provides a direct replacement path for Delco/Delphi-style applications

Installation Notes and Tips

Verify pulley alignment, connector style, and mounting configuration before installation. This alternator includes a pulley, but pulley change may be required depending on the application. Confirm the vehicle uses a 12-volt, clockwise-rotation alternator with an internal regulator and the correct amperage rating before final fitment. This part cross-references 1100294 and 1101228 for the same application.

Quality Assurance

Remy Premium Remanufactured parts are remanufactured to OE-style specifications for listed applications. Part number 20220 is built around Delco/Delphi reference design details and application-specific fitment data for 1979-1985 Chevrolet S10, GMC S15, Jeep CJ7, Oldsmobile Cutlass, and related vehicles.