ACDelco 23200937 Passenger Side Rear Exhaust Muffler Insulator

The ACDelco 23200937 is an OE-replacement passenger side rear exhaust muffler insulator designed, engineered, and tested to rigorous GM standards. This rubber exhaust insulator mounts between the muffler and the vehicle's undercarriage, securing the exhaust system in place and absorbing vibration before it can transfer to the chassis or cabin.

Key Features:

• Secures and supports the exhaust muffler to the underside of the vehicle
• Dampens and isolates exhaust system vibrations to reduce interior noise
• Helps prevent excessive exhaust movement and contact with undercar components
• Manufactured to GM OE specifications for precise fit and long-term durability
• May be sold as ACDelco GM Original Equipment (OE) or GM Genuine Parts — same part, same quality

Replacing a worn or cracked exhaust insulator can eliminate rattles, reduce exhaust noise intrusion, and prevent low-hanging exhaust damage. This is a direct OEM replacement part backed by General Motors.