ACDelco 84205378 Passenger Side Exhaust Rear Muffler Insulator

The ACDelco 84205378 is a GM Genuine Parts passenger side exhaust rear muffler insulator engineered as a direct OE replacement. Designed, engineered, and tested to rigorous GM standards, this exhaust insulator restores the factory-correct mounting and isolation of the rear exhaust and muffler assembly.

Key Features:

• Secures and supports the exhaust pipe to the underside of the vehicle
• Dampens exhaust system vibration to reduce noise and harshness transmitted to the cabin
• Prevents excessive exhaust movement and contact with surrounding underbody components
• Steel and rubber construction for durability under heat and road exposure
• Black finish; 3 mounting holes for precise OE fitment
• Approximately 4 inches wide and 1.7 inches thick
• OE classification — same part installed or validated by General Motors during vehicle production

This part also carries the GM Genuine Parts designation. Some GM Genuine Parts may have formerly appeared under the ACDelco GM Original Equipment (OE) label. Sold individually.