Buy 2013 Chevrolet Avalanche Black Diamond LS Crew Cab Pickup Fleetside Engine Mount (Front). 4.3 LITER - OEM Chevrolet Part # 84175579 (20917350, 23466346, 84083962, 84086737, 85579394)

Mount.
A part that locates and supports the engine. It also reduces vibrations from the engine. Assembly - ENGINE. Motor. Side.

Engine Mount

Fits Sierra 1500, Silverado

4.3 LITER. Sierra, Silverado; Left.
Engine Mount - Repair or Replace
A broken or worn engine mount will often cause your 2013 Chevrolet Avalanche to lurch when shifting gears, and you may also hear a clunk when accelerating or braking. Another likely symptom is excessive vibration from your engine.