Four Seasons 58777 front A/C compressor for the 1991 Buick Regal and other vehicles compresses refrigerant and moves it through the air conditioning system. This new Four Seasons A/C compressor is a GM V5 unit and comes with its clutch.
- Tested for durability equal to 100,000 miles
- Pre-charged with 3 ounces of PAG oil
- Compatible with R134a systems
- 12-volt DC clutch coil
- Pin connector that helps avoid splicing during installation
Quick facts
- Part: Four Seasons 58777 A/C compressor
- Fits: 1991 Buick Regal and other vehicles
- Position: Front
- Condition: New
Warm vent air, a noisy compressor or a clutch that will not engage can mean the compressor is worn. A leaking hose, a low refrigerant charge or a failed pressure switch can be behind these signs too, so find the cause before you buy.
Fits
Vehicles it fits include the 1991 Buick Regal, the 1990-1991 Oldsmobile Silhouette and the 1989-1991 Chevrolet Beretta, and each takes one compressor. To see whether your own car is covered, open the "Vehicles it fits" section and check its model and engine.
Specifications
Fit and size
- Position: Front
- Quantity per vehicle: 1
- Outside pulley diameter: 4.500 in
- Pulley grooves: 6, serpentine belt
- Mounting type: Ear mount
- Outlet C length: 114 mm
Build and materials
- Compressor type: GM V5
- Condition: New
- Clutch: Included
- Compatible oil: PAG 150
- Country of origin: China
In the box
One A/C compressor with its clutch, plus the O-rings and sealing washers it needs, including two sealing washers (24354). The high-pressure switch and mounting hardware are not included, so plan on new bolts, as the old ones may not be reusable.
Frequently Asked Questions
Is this the right A/C compressor for a 1991 Buick Regal?
Yes. Four Seasons 58777 fits the 1991 Buick Regal, and that car takes one compressor. For other models, open the "Vehicles it fits" section.
Is this an A/C compressor for the 1990-1991 Oldsmobile Silhouette?
Yes. Four Seasons 58777 is listed for the 1990-1991 Oldsmobile Silhouette, and that vehicle takes one compressor.
Does this Four Seasons compressor come with oil in it?
Yes. This A/C compressor is pre-charged with 3 ounces of PAG oil, and the compatible oil type is PAG 150.
Do I need to buy bolts separately for the 58777 compressor?
Yes. Mounting hardware is not included, so plan on new bolts. The clutch, O-rings and sealing washers do come with the compressor.
How many grooves does the Four Seasons 58777 pulley have?
The pulley has 6 grooves for a serpentine belt and measures 4.500 in across its outside diameter.
