HomeHVAC > A/C Clutch and CompressorFour Seasons 57863 A/C Compressor
Part #: 57863

Four Seasons 57863 A/C Compressor

Reman Compressor
⚙️ 23 vehicles fit this part
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OE Direct Replacement — Bolt-on fit, no modifications needed
📦Reman Compressor
🚗Fitment: Cadillac, Allante, Commercial Chassis, DeVille, Eldorado, Fleetwood, and Seville
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Reliable A/C Compressor for Cadillac Models

The Four Seasons Reman Compressor 57863 is designed to restore efficient air conditioning performance in select Cadillac vehicles. Engineered for compatibility with R134a refrigerant, this remanufactured A/C compressor meets the specific needs of Cadillac Allante, Commercial Chassis, DeVille, Eldorado, Fleetwood, and Seville models.

  • Compatible refrigerant type: R134a
  • Includes oil filled with PAG 150 compatible refrigerant oil
  • 6-groove serpentine pulley for reliable belt engagement
  • Pin-type electrical terminal for secure connection
  • Clutch included with a maximum diameter of 4.25 inches
  • Coil voltage rated at 12 volts with coil clock position at 2 o'clock
  • Mounting type: Type I with metric threads
  • Block mount suction port with included O-rings and sealing washer
  • Remanufactured compressor type HR6, DA6

About the Four Seasons Reman Compressor Line

The Reman Compressor line from Four Seasons offers remanufactured A/C compressors that provide a cost-effective alternative to new units while maintaining OEM specifications. Each compressor undergoes a thorough remanufacturing process to ensure proper function and durability. The 57863 model is part of this line, delivering reliable performance for various Cadillac vehicles requiring R134a refrigerant systems.

Detailed Product Description

This Four Seasons Reman Compressor 57863 is engineered specifically for Cadillac models including Allante, Commercial Chassis, DeVille, Eldorado, Fleetwood, and Seville. It features a 6-groove serpentine pulley with a diameter of approximately 4.25 inches, designed to work with serpentine belt systems common in these vehicles. The compressor is pre-filled with PAG 150 oil compatible with R134a refrigerant, ensuring proper lubrication and system longevity. The included clutch assembly has a maximum diameter of 4.25 inches and a coil voltage of 12 volts, with the coil positioned at 2 o'clock for correct alignment. The compressor mounts using Type I metric threads and includes two green O-rings (part number 24615) for sealing the block mount suction port. Note that mounting hardware is not included with this unit.

Common Applications and Issues Addressed

  • Restores A/C cooling performance in Cadillac Allante and DeVille models
  • Replaces failing or noisy compressors in Eldorado and Fleetwood vehicles
  • Solves clutch engagement problems in Seville and Commercial Chassis A/C systems
  • Addresses refrigerant leaks at the suction port with included O-rings
  • Improves overall system reliability in R134a-equipped Cadillac air conditioning units

Installation Notes and Tips

  • Verify compatibility with your specific Cadillac model and year before installation
  • Ensure the serpentine belt is in good condition and properly tensioned for optimal pulley performance
  • Use the included green O-rings to seal the suction port and prevent refrigerant leaks
  • Check electrical connections for the pin-type terminal to ensure secure clutch operation
  • Mount compressor using Type I metric threads; mounting hardware must be sourced separately

Quality Assurance and Warranty

The Four Seasons Reman Compressor 57863 is remanufactured to meet or exceed OEM standards for fit, form, and function. Each unit is tested for proper operation and includes oil pre-filled with PAG 150 compatible refrigerant oil. While mounting hardware is not included, the compressor comes with necessary sealing components such as O-rings and a clutch assembly. Warranty coverage details should be confirmed with the distributor or installer.

BrandFour Seasons
Part Number57863
PositionReman Compressor
Refrigerant TypeR134a
Compatible Refrigerant Oil TypePag 150
Oil FilledIncluded
Pulley Groove Quantity6
Terminal TypePin
Distance From Clutch To Mounting Flange0.59375
Clutch Maximum Diameter4.250
Clutch IncludedIncluded
Coil Clock Position2
Compressor TypeHr6, da6
Coil Voltage12
Pulley Belt TypeSerpentine
Mounting TypeType i, metric threads
Pulley Lip Diameter4.250
Pulley Ridge Diameter4.250
Mounting Hardware?Not included
New or RemanRemanufactured
O-Ring A Number/Desc[24615] / green o-ring
O-Ring A Quantity2
Pulley Diameter MM107.950
Reman w/o Clutch[57250] / clutch assembly
Suc Prt Typ NoteW/ o-rings / sealing washer
Suction Port TypeBlock mount
TypeGm

This part fits 23 vehicles. Search below:

YearMakeModelSubmodelLitersCylindersPositionNotes
1993CadillacCommercial ChassisBase4.9LV8N/Aw/ HR6 Compressor; Reman w/ Clutch; Reman Compressor
1992CadillacCommercial ChassisBase4.9LV8N/Aw/ HR6 Compressor; Reman w/ Clutch; Reman Compressor
1991CadillacAllanteN/Aw/ HR6 Compressor; Reman w/ Clutch; Reman Compressor
1991CadillacCommercial ChassisN/Aw/ HR6 Compressor; Reman w/ Clutch; Reman Compressor
1991CadillacDeVilleN/Aw/ HR6 Compressor; Reman w/ Clutch; Reman Compressor
1991CadillacEldoradoN/Aw/ HR6 Compressor; Reman w/ Clutch; Reman Compressor
1991CadillacFleetwoodN/Aw/ HR6 Compressor; Reman w/ Clutch; Reman Compressor
1991CadillacSevilleN/Aw/ HR6 Compressor; Reman w/ Clutch; Reman Compressor
1990CadillacAllanteN/Aw/ HR6 Compressor; Reman w/ Clutch; Reman Compressor
1990CadillacCommercial ChassisN/Aw/ HR6 Compressor; Reman w/ Clutch; Reman Compressor
1990CadillacDeVilleN/Aw/ HR6 Compressor; Reman w/ Clutch; Reman Compressor
1990CadillacEldoradoN/Aw/ HR6 Compressor; Reman w/ Clutch; Reman Compressor
1990CadillacFleetwoodN/Aw/ HR6 Compressor; Reman w/ Clutch; Reman Compressor
1990CadillacSevilleN/Aw/ HR6 Compressor; Reman w/ Clutch; Reman Compressor
1989CadillacAllanteN/Aw/ HR6 Compressor; Reman w/ Clutch; Reman Compressor
1989CadillacCommercial ChassisN/Aw/ HR6 Compressor; Reman w/ Clutch; Reman Compressor
1989CadillacDeVilleN/Aw/ HR6 Compressor; Reman w/ Clutch; Reman Compressor
1989CadillacEldoradoN/Aw/ HR6 Compressor; Reman w/ Clutch; Reman Compressor
1989CadillacFleetwoodN/Aw/ HR6 Compressor; Reman w/ Clutch; Reman Compressor
1989CadillacFleetwoodBaseN/Aw/ HR6 Compressor; Reman w/ Clutch; Reman Compressor
1989CadillacFleetwoodd'EleganceN/Aw/ HR6 Compressor; Reman w/ Clutch; Reman Compressor
1989CadillacFleetwood60 SpecialN/Aw/ HR6 Compressor; Reman w/ Clutch; Reman Compressor
1989CadillacSevilleN/Aw/ HR6 Compressor; Reman w/ Clutch; Reman Compressor

* Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.

This part directly replaces or is cross-referenced with the following part numbers:

014745960334411157863113173313208132601420208NC1420208RC15202591525831653W6191693452045922511125117725311333383340535129A524997915786362441R65210668221701648R7157863716008751177A6008AC1750NPAC1750NPSAC2030DW57863VAC1750NP

Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.