HomeHVAC > A/C Clutch and CompressorGlobal Parts 6511378 A/C Compressor
Part #: 6511378

Global Parts 6511378 A/C Compressor

New Compressor
⚙️ 50 vehicles fit this part
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Select your vehicle to confirm fitment
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OE Direct Replacement — Bolt-on fit, no modifications needed
📦New Compressor
🚗Fitment: Chevrolet and GMC, C20, C20 Suburban, C2500, C2500 Suburban, C30, C3500, K20 Suburban, K30, K3500, R20, R20 Suburban, R2500, R2500 Suburban, R30, R3500, V20 Suburban, V2500 Suburban, V30, and V3500
🔄Easy Returns — Return within 60 days for a full refund
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Reliable A/C Compressor for Chevrolet and GMC Trucks

The Global Parts New Compressor 6511378 is designed to restore efficient air conditioning performance in select Chevrolet and GMC truck models. This new A/C compressor ensures proper cooling functionality with its oil-filled design and integrated clutch, tailored for vehicles requiring a 12-volt coil system.

Key Features of Global Parts New Compressor 6511378

  • New, uncoated compressor case in natural finish
  • Oil filled for optimal lubrication and durability
  • Single pulley groove with a 4.93-inch (125.22 mm) outside pulley diameter
  • Includes clutch compatible with 12-volt coil voltage systems
  • Designed for V-belt pulley belt type
  • Ear mounting type for secure installation
  • Compressor type: HR6

About the Global Parts New Compressor Line

The New Compressor line from Global Parts focuses on delivering brand-new HVAC components engineered to meet original equipment specifications. This line emphasizes quality and reliability, providing a direct replacement compressor that supports proper air conditioning system operation in Chevrolet and GMC trucks. The 6511378 model is part of this line, ensuring compatibility and performance for your vehicle’s HVAC needs.

Detailed Product Description

The Global Parts New Compressor 6511378 is a direct-fit A/C compressor designed specifically for Chevrolet and GMC trucks including models such as C20, C2500, K20 Suburban, and R3500 among others. Its oil-filled design helps maintain internal lubrication, reducing wear and extending compressor life. The compressor features a single pulley groove with a 4.93-inch outside pulley diameter, compatible with V-belt systems commonly found in these trucks. The included clutch operates on a 12-volt coil voltage, ensuring proper engagement and disengagement of the compressor. The ear mounting type allows for straightforward installation on compatible vehicles. This compressor is uncoated with a natural case color, reflecting its new condition and readiness for installation.

Common Issues Addressed by This A/C Compressor

  • Loss of air conditioning cooling due to compressor failure
  • Clutch engagement problems affecting A/C operation
  • Oil leakage or insufficient lubrication inside the compressor
  • Worn or damaged pulley affecting belt alignment
  • Incompatibility with V-belt pulley systems in Chevrolet and GMC trucks

Installation Notes and Tips

Ensure the vehicle’s A/C system is properly evacuated and recharged by a certified technician after compressor replacement. Verify the pulley groove and belt type match the existing system before installation. Since mounting hardware is not included, retain original bolts and brackets or source compatible hardware separately. Confirm electrical connections for the 12-volt coil are secure to avoid clutch engagement issues.

Quality Assurance and Warranty

The Global Parts New Compressor 6511378 is manufactured to meet OEM standards for fit and function. As a new compressor, it provides reliable performance for HVAC systems in Chevrolet and GMC trucks. Warranty details should be confirmed with the distributor or retailer, as they may vary by source.

BrandGlobal Parts
Part Number6511378
PositionNew Compressor
FinishUncoated
Oil FilledYes
Pulley Groove Quantity1
Case ColorNatural
Outside Pulley Diameter125.22
Outside Pulley Diameter4.93
Clutch IncludedYes
Compressor TypeHr6
Coil Voltage12
Pulley Belt TypeV-belt
Mounting TypeEar
Mounting Hardware IncludedNo
New Or Remanufactured CompressorNew

This part fits 50 vehicles. Search below:

YearMakeModelLitersCylindersPositionNotes
1991ChevroletV35007.4LV8N/A8011252 8oz; New Compressor
1990ChevroletR2500 Suburban7.4LV8N/A8011252 8oz; New Compressor
1990ChevroletR35007.4LV8N/A8011252 8oz; New Compressor
1990ChevroletV2500 Suburban7.4LV8N/A8011252 8oz; New Compressor
1990GMCR2500 Suburban7.4LV8N/A8011252 8oz; New Compressor
1990GMCV35007.4LV8N/A8011252 8oz; New Compressor
1989ChevroletC35007.4LV8N/A8011252 8oz; New Compressor
1989ChevroletK35007.4LV8N/A8011252 8oz; New Compressor
1989ChevroletR25007.4LV8N/A8011252 8oz; New Compressor
1989ChevroletR2500 Suburban7.4LV8N/A8011252 8oz; New Compressor
1989ChevroletR35007.4LV8N/A8011252 8oz; New Compressor
1989GMCC35007.4LV8N/A8011252 8oz; New Compressor
1989GMCK35007.4LV8N/A8011252 8oz; New Compressor
1989GMCR2500 Suburban7.4LV8N/A8011252 8oz; New Compressor
1989GMCV35007.4LV8N/A8011252 8oz; New Compressor
1988ChevroletR207.4LV8N/A8011252 8oz; New Compressor
1988ChevroletR20 Suburban7.4LV8N/A8011252 8oz; New Compressor
1988ChevroletR307.4LV8N/A8011252 8oz; New Compressor
1988ChevroletV20 Suburban7.4LV8N/A8011252 8oz; New Compressor
1988ChevroletV307.4LV8N/A8011252 8oz; New Compressor
1988GMCR25007.4LV8N/A8011252 8oz; New Compressor
1988GMCR2500 Suburban7.4LV8N/A8011252 8oz; New Compressor
1988GMCR35007.4LV8N/A8011252 8oz; New Compressor
1988GMCV35007.4LV8N/A8011252 8oz; New Compressor
1987ChevroletR207.4LV8N/A8011252 8oz; New Compressor
1987ChevroletR20 Suburban7.4LV8N/A8011252 8oz; New Compressor
1987ChevroletR307.4LV8N/A8011252 8oz; New Compressor
1987ChevroletV20 Suburban7.4LV8N/A8011252 8oz; New Compressor
1987ChevroletV307.4LV8N/A8011252 8oz; New Compressor
1987GMCR25007.4LV8N/A8011252 8oz; New Compressor
1987GMCR2500 Suburban7.4LV8N/A8011252 8oz; New Compressor
1987GMCR35007.4LV8N/A8011252 8oz; New Compressor
1987GMCV35007.4LV8N/A8011252 8oz; New Compressor
1986ChevroletC207.4LV8N/A8011252 8oz; New Compressor
1986ChevroletC20 Suburban7.4LV8N/A8011252 8oz; New Compressor
1986ChevroletC307.4LV8N/A8011252 8oz; New Compressor
1986ChevroletK307.4LV8N/A8011252 8oz; New Compressor
1986GMCC25007.4LV8N/A8011252 8oz; New Compressor
1986GMCC2500 Suburban7.4LV8N/A8011252 8oz; New Compressor
1986GMCC35007.4LV8N/A8011252 8oz; New Compressor
1986GMCK35007.4LV8N/A8011252 8oz; New Compressor
1985ChevroletC207.4LV8N/A8011252 8oz; New Compressor
1985ChevroletC20 Suburban7.4LV8N/A8011252 8oz; New Compressor
1985ChevroletC307.4LV8N/A8011252 8oz; New Compressor
1985ChevroletK20 Suburban7.4LV8N/A8011252 8oz; New Compressor
1985ChevroletK307.4LV8N/A8011252 8oz; New Compressor
1985GMCC25007.4LV8N/A8011252 8oz; New Compressor
1985GMCC2500 Suburban7.4LV8N/A8011252 8oz; New Compressor
1985GMCC35007.4LV8N/A8011252 8oz; New Compressor
1985GMCK35007.4LV8N/A8011252 8oz; New 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:

10-165501030294110302942113646013-232415-2023615202361520236Z20236A251139251167275068471-91544719154582736-2431R600012462023668-21169-21169211ACP011014OESC-352C352

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