TYC 20318 A/C Compressor

Product Overview

This TYC A/C compressor, part number 20318, is built for heavy-duty truck HVAC systems that use R-134a refrigerant and a 12V electrical setup. It is a fitment-based replacement for a wide range of Kenworth and Peterbilt applications, including Kenworth T300 and Peterbilt 379 models.

Key Features

• R-134a refrigerant type for common truck air conditioning systems.
• 12V coil voltage for standard vehicle electrical compatibility.
• 8-groove pulley wheel design for belt-driven compressor applications.
• Uses PAG46 oil specification with 10 oz oil quantity listed.
• Includes 2 O-rings as specified in the product attributes.
• Backed by a 2-year warranty.

Detailed Description

TYC part number 20318 is an A/C compressor for commercial truck HVAC systems that require R-134a refrigerant and 12V operation. The listed fitment covers many Kenworth and Peterbilt models across multiple model years, making this compressor a practical replacement for service work on fleets and individual trucks. Compatible applications include Kenworth T270, Kenworth T370, Peterbilt 330, and Peterbilt 379, along with additional fitments shown in the vehicle list. This part cross-references 6511278 and CO 4759C for the same application.

The compressor specifications point to a direct replacement style component for belt-driven air conditioning systems. The 8-groove pulley, PAG46 oil requirement, and R-134a refrigerant listing help match the original system configuration. Part number 20318 is also supported by a 2-year warranty, giving buyers a clear service-life reference when selecting a replacement compressor for Kenworth and Peterbilt HVAC repairs.

Common Problems It Can Address

• No cold air from the HVAC system.
• Compressor noise or seizure.
• Loss of refrigerant system pressure.
• Weak or inconsistent cabin cooling.
• Compressor failure during routine maintenance replacement.

Installation Notes and Tips

Verify refrigerant type, oil specification, pulley groove count, and electrical requirements before installation. Flush the system as needed, replace the receiver-drier or accumulator when required by service procedure, and evacuate and recharge the system to the correct specification after compressor replacement. Confirm fitment against the exact truck model and year listed for part number 20318.

Quality Assurance

TYC part number 20318 is covered by a 2-year warranty. The product is specified for R-134a systems with 12V coil voltage and an 8-groove pulley configuration, supporting accurate replacement selection for heavy-duty HVAC service.