Dorman 34863 A/C Compressor Bypass Pulley

Dorman 34863 A/C Compressor Bypass Pulley

Dorman 34863 is an A/C compressor bypass pulley that lets the original equipment drive belt stay in service while routing around an inoperable compressor. It is a practical repair for Jeep Commander and Jeep Grand Cherokee models when the compressor is no longer turning properly.

Key Features

• Aluminum bracket with a plastic pulley for a direct bypass setup
• 6-groove serpentine belt pulley design
• Outside diameter: 5.3 in.
• Width: 1.15 in.
• Mounting bracket and installation instructions included
• Mounting hardware included
• Designed for compressor type 10S17E

Detailed Description

This Dorman A/C compressor bypass pulley, part number 34863, is built to replace the compressor drive path with a belt-routing solution that keeps the accessory drive system operating after A/C compressor failure. It uses an aluminum bracket and plastic pulley construction, with a 6-groove serpentine belt profile to match the original belt layout. For 2005-2007 Jeep Grand Cherokee and 2006-2007 Jeep Commander applications, this bypass pulley provides a direct repair path when the compressor is seized, noisy, or no longer serviceable. This part cross-references Four Seasons 77361 for the same application.

What It Helps Address

• Seized A/C compressor that prevents the belt from turning normally
• Belt routing problems after compressor removal or failure
• Accessory drive noise caused by a damaged compressor pulley path
• Loss of belt-driven engine accessories due to compressor drag
• Need to keep the vehicle operational without immediate compressor replacement

Installation Notes and Tips

Verify compressor type 10S17E before installation. Confirm belt routing, mounting hole alignment, and pulley groove match before final assembly. Installation instructions are included, and the mounting bracket and hardware are provided for the bypass setup. Use the vehicle-specific fitment below to confirm application before ordering.

Compatible With 2006-2007 Jeep Commander and 2005-2007 Jeep Grand Cherokee. Dorman 34863 is a fitment-specific solution for these Jeep applications when the original A/C compressor is inoperable.

Quality Assurance

Dorman designs replacement components for serviceable, application-specific repairs. Part number 34863 is built with the listed materials and dimensions to support a proper belt bypass installation on the confirmed Jeep fitments.