GM Radiator Mount Pad Pair 6 1/2in X 1in X 3/8

The Northern Radiator GM Radiator Mount Pad Pair (Z16516) is a rubber insulator designed to isolate and stabilize radiators in General Motors vehicles. These black elastomer pads measure 6½ inches by 1 inch by ⅜ inch and mount as a matched pair to reduce vibration transfer and noise transmission from the engine bay to the chassis frame, protecting both the radiator assembly and surrounding components from metal-to-metal contact stress.

Radiator mount pads serve a critical mechanical function: they absorb and dampen vibration energy that would otherwise concentrate stress at mounting points. By distributing load across a larger elastomer contact surface, these pads reduce metal fatigue at frame attachment points and lower overall drivetrain noise in the cabin. The material composition and thickness are engineered to withstand sustained engine heat and coolant system pressure while maintaining elasticity and shock absorption across typical GM engine operating temperatures. Proper isolation also minimizes radiator core damage from high-frequency vibration, extending cooling system service life.

These pads are essential for restoration work on classic or vintage GM muscle cars, street rods, and production vehicles where original mounting hardware has worn or deteriorated. They are also commonly replaced during radiator service, frame repair, or engine swaps on GM platforms where vibration isolation must be restored to OEM specification. Owners seeking to reduce engine compartment noise, improve ride quality, or prevent future frame damage from mounting stress will find these pads a cost-effective maintenance solution. The pair format ensures balanced, symmetrical radiator support across both mounting locations.