Dorman 34284 A/C Compressor Bypass Pulley

Dorman 34284 A/C Compressor Bypass Pulley

Dorman 34284 is an A/C compressor bypass pulley for vehicles equipped with a TRSE09 compressor. It lets the original serpentine belt stay in place while bypassing an inoperable A/C compressor, making it a practical repair option for select Honda and Acura applications.

Compatible With 2007-2014 Honda CR-V, 2007-2012 Acura RDX, 2012-2014 Honda Civic, and 2013-2014 Acura ILX.

• Aluminum bracket with a natural finish
• Plastic pulley construction
• Serpentine belt application
• Mounting bracket included
• Mounting hardware included
• Installation instructions included
• Outside diameter: 118 mm
• Width: 33 mm
• Mounting hole quantity: 4
• Mounting hole diameter: 10 mm

Application Details

This bypass pulley is built for vehicles using the TRSE09 compressor layout and is a direct-fit service part for the listed Honda CR-V, Honda Civic, Acura RDX, and Acura ILX applications. Part number 34284 is a straightforward solution when the compressor is no longer operating and the belt drive still needs to be maintained. This part cross-references UAC (e.g., CO29335C, KT4871) for the same application.

What It Helps Address

• Broken or seized A/C compressor that prevents belt operation
• Need to keep the serpentine belt routing intact after compressor failure
• Noise or drag caused by an inoperable compressor assembly
• Temporary or permanent bypass of the compressor drive path
• Restoration of accessory drive function without replacing the compressor immediately

Installation Notes

Verify compressor type TRSE09 before installation. Confirm belt routing, mounting-hole alignment, and pulley clearance against the original setup. Use the included instructions during installation and inspect the serpentine belt for wear before reassembly. Part number 34284 is intended for the listed fitments only, including Honda CR-V and Acura RDX applications.

Quality Assurance

Dorman supplies this bypass pulley as a service replacement built around the specified bracket and pulley materials for the listed applications. The included mounting bracket, hardware, and instructions support a complete installation package for the confirmed fitment range.