A/C compressor mounting bolts hold the compressor tightly against the bracket. They must withstand high vibrations and belt tension. They are typically grade 8 steel. If these bolts break or work loose, the compressor will wobble. This causes the belt to squeal and snap.
Mechanic Glossary
A/C Compressor Mounting Bolt
The heavy-duty steel bolts that secure the A/C compressor to its engine mounting bracket.
Frequently Asked Questions
Usually M8 or M10 metric bolts, varying in length by vehicle. Check your service manual for torque specifications.
The compressor will run misaligned, which throws off the accessory belt and can damage the aluminum engine block threads.
Yes, unless they are stretched, rusted, or damaged. Clean the threads and apply threadlock during installation.