Universal Air
UAC MSC105 Compressor Assembly

Universal Air CO21579T A/C Compressor

Brand Universal Air CO21579T
Product line UAC MSC105 Compressor Assembly
Fits Chevrolet, Pontiac, Buick, and Saturn · 15 vehicles

Compressor assembly. Complete A/C compressor for straightforward replacement.

Universal Air line. Built for dependable HVAC performance.

$253.68Free shipping
In stock · usually ships same day before 1pm CST
Step 1 — Confirm fitment
Free return shipping if it doesn't fit when you check fitment here first.
Select your vehicle to confirm fitment
Verify this part fits before purchasing — free returns if it doesn't
Step 2 — Quantity
Order total $253.68
Free shipping to the continental U.S.
Free returns within 60 days if it doesn't fit when fitment is verified.

UAC MSC105 Compressor Assembly for GM Vans

The Universal Air UAC MSC105 Compressor Assembly, part number CO21579T, is an A/C compressor for select GM minivans from 2006-2009. It is listed for Chevrolet Uplander, Pontiac Montana, Buick Terraza, and Saturn Relay applications with N/A position fitment.

Key Features

  • Part number CO21579T for direct reference when matching the correct compressor
  • UAC MSC105 Compressor Assembly product line
  • Fits 2006-2009 Chevrolet Uplander, N/A
  • Fits 2006-2009 Pontiac Montana, N/A
  • Fits 2006-2007 Buick Terraza, N/A
  • Fits 2006-2007 Saturn Relay, N/A

Detailed Description

This A/C compressor is cataloged for GM minivan HVAC systems that use the UAC MSC105 Compressor Assembly configuration. If you are searching for a Chevrolet Uplander A/C compressor, Pontiac Montana compressor assembly, Buick Terraza compressor, or Saturn Relay compressor, CO21579T provides a fitment-specific reference for those model years. The part number CO21579T should be matched to the vehicle’s existing compressor application before purchase.

Common Repair Symptoms

  • No cold air from the vents
  • Compressor clutch or compressor engagement concerns
  • Unusual noise from the A/C compressor area
  • Refrigerant circulation problems in the HVAC system
  • Loss of cabin cooling performance on GM minivans

Installation Notes and Tips

Verify the vehicle year, make, and model against the listed fitment before ordering. Confirm the existing compressor style and refrigerant system details on the vehicle to ensure CO21579T matches the original application. After installation, the A/C system should be evacuated, leak-checked, and recharged according to service specifications.

Quality Assurance

Universal Air catalogs the UAC MSC105 Compressor Assembly as a fitment-specific HVAC replacement part for the listed GM applications. Use the vehicle fitment and part number CO21579T to confirm the correct compressor before service.

This part fits 15 vehicles
Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.
YearMakeModelSubmodelLitersCylindersFuel TypePositionNotes
2009ChevroletUplander———GASN/AUAC MSC105 Compressor Assembly
2009ChevroletUplander———FLEXN/AUAC MSC105 Compressor Assembly
2009PontiacMontana————N/AUAC MSC105 Compressor Assembly
2008ChevroletUplander———FLEXN/AUAC MSC105 Compressor Assembly
2008ChevroletUplander———GASN/AUAC MSC105 Compressor Assembly
2008PontiacMontana————N/AUAC MSC105 Compressor Assembly
2007BuickTerraza————N/AUAC MSC105 Compressor Assembly
2007ChevroletUplander———GASN/AUAC MSC105 Compressor Assembly
2007ChevroletUplander———FLEXN/AUAC MSC105 Compressor Assembly
2007PontiacMontana————N/AUAC MSC105 Compressor Assembly
2007SaturnRelay————N/AUAC MSC105 Compressor Assembly
2006BuickTerraza—3.9LV6—N/AUAC MSC105 Compressor Assembly
2006ChevroletUplanderLT3.9LV6—N/AUAC MSC105 Compressor Assembly
2006PontiacMontana—3.9LV6—N/AUAC MSC105 Compressor Assembly
2006SaturnRelay33.9LV6—N/AUAC MSC105 Compressor Assembly