Bosch 1986AC1027 A/C Compressor

Bosch A/C Compressor Overview

Bosch A/C Compressor 1986AC1027 is built for direct replacement use in select Ram heavy-duty truck applications. It combines OE-based manufacturing experience with specification-matched casting, pulley, and connector details for a precise service fit.

Key Features

• Fits select Ram 2500 and Ram 3500 A/C compressor applications.
• Supports R134A and R1234YF refrigerant systems.
• Pre-filled with PAG 46 oil and includes a seal ring.
• 8-groove pulley with a 120 mm outside diameter.
• 12-volt coil specification for system integration.
• Bosch part number 1986AC1027 for catalog matching.

Detailed Description

This Bosch A/C compressor is engineered for vehicles that need a replacement unit matched to OE-style dimensions and connector specifications. The design is backed by Bosch release testing that evaluates endurance, performance, vibration, leak resistance, salt spray exposure, and noise, helping ensure consistent operation in demanding HVAC service. It fits 2011-2022 Ram 2500 and 2011-2022 Ram 3500 applications, plus 2010 Dodge Ram 2500 and 2010 Dodge Ram 3500 applications. Bosch 1986AC1027 is a practical choice when replacing a worn compressor in Ram 2500 and Ram 3500 HVAC systems.

This part cross-references Chrysler (e.g., 55111444AB) for the same application.

What It Helps Address

• Loss of cabin cooling from a worn or failed compressor.
• Noise or vibration coming from the A/C compressor assembly.
• Refrigerant leakage related to compressor wear or seal failure.
• Poor system performance caused by internal compressor damage.
• Fitment issues when an OE-matched replacement is required.

Installation Notes and Tips

Verify refrigerant type, pulley groove count, coil voltage, and connector alignment before installation. Confirm the system uses the correct oil specification, PAG 46, and inspect related HVAC components for contamination or wear before charging the system. Follow the vehicle service procedure for evacuation, recovery, and recharge.

Quality Assurance

Bosch subjects this compressor to endurance, performance, vibration, leak, salt spray, and noise testing as part of its release process. The unit is built to OE specification targets for casting, pulley, and connector dimensions.