Marsflex AC Compressor with Clutch for 2000–2019 Chevy Silverado — Direct-Fit, 4-Groove 109mm Pulley

Marsflex AC Compressor with Clutch is a direct-fit replacement compressor assembled with a prefilled PAG oil charge and a 4-groove pulley designed to restore vehicle air conditioning performance on compatible 2000–2019 Chevrolet, GMC and Cadillac models.

This replacement unit is built to match OE-style dimensions and electrical connections for many Silverado, Sierra, Express, Savana and Escalade applications. It arrives pre-charged with the correct refrigerant oil, includes the clutch, and is intended for vehicles that accept a two-bolt mounting compressor. Before purchase, confirm your vehicle’s compressor appearance, mounting hole count and OE part number to ensure compatibility.

How do I verify this compressor fits my vehicle?

Check the original compressor on your vehicle and compare mount location, mounting hole count and electrical plug configuration with the Marsflex unit. Also match the OE part number where possible.

• Confirm only two mounting holes are required — this unit has two.
• Compare clutch plug/pin shape to your vehicle harness.
• Cross-reference OE numbers: 77362, 78362, 77377, 78377, CO29002C, 15068853, 15100337.

What are the key technical specifications I should know?

The compressor is a 10S20FC type with an included clutch, a 109 mm pulley diameter and a four-groove pulley. It ships prefilled with PAG(R1234yf)46 oil and supports R134a and R1234yf refrigerants.

• Compressor type: 10S20FC; clutch included.
• Pulley: 109 mm diameter with 4 grooves.
• Oil: 160+10 ml PAG(R1234yf)46 prefilled — do not add refrigeration oil.
• Refrigerant compatibility: R134a and R1234yf.

What installation and safety notes should I follow?

Professional installation is strongly recommended to avoid damage from incorrect procedures. Inspect the compressor appearance, electrical plug and mounting orientation before fitting, and follow all service manual steps when handling refrigerant and oil.

• Only trained technicians should install to prevent compressor damage.
• Do not add refrigerant oil; unit is precharged with the manufacturer-specified amount.
• Verify plug/pin and hose connections match your vehicle before assembly.

Which models and engines are covered by this replacement compressor?

This compressor fits many GM full-size trucks, vans and large SUVs produced between 2000 and 2019, with specific fitment lists for Chevrolet, GMC and Cadillac models noted by year and engine size. Always check the detailed compatibility block against your vehicle.

• Chevrolet Silverado and Sierra: select 2000–2002 models and HD variants listed by engine sizes.
• Chevrolet/GMC Express & Savana vans: wide coverage from 2003–2019 across 1500/2500/3500/4500 trims.
• Cadillac Escalade/EXT: 2002 models with V8 5.3L/6.0L engines supported.

Who is this for: This Marsflex compressor is intended for vehicle owners, fleet maintenance shops and professional technicians who need an OE-style replacement for specific early-2000s GM trucks, vans and Escalade SUVs. It suits buyers who require a unit that arrives with the clutch and correct oil charge already installed, and who will confirm two-bolt mounting and electrical plug compatibility prior to installation. One year warranty coverage and included accessories (gloves, user manual, O-rings) support a safe, professional installation process.