Engine tensioner for GMC Sierra 2007-2014

Shadad سير المكينة represents (main belt tensioner or automatic tensioner pulley) for GMC cars models 2007 to 2014, manufactured by Is Delco. The mechanical part that maintains proper tension for the main accessory drive belt (alternator belt), to ensure power transfer from the engine shaft to the alternator, power steering pump, and air conditioning compressor efficiently and without slipping. The importance of this tensioner lies in being the primary responsible for maintaining correct belt tension, preventing slipping, skipping, or squealing sounds, and ensuring all auxiliary devices operate efficiently. The high-quality corrosion-resistant metal, strong internal spring, and tightly fitted bearing from Is Delco guarantee reliable operation and long lifespan without slack or faults. Replacing the damaged, weak, squealing, or loose belt tensioner restores the efficiency of all auxiliary devices, and any annoying noise from the alternator area or weak battery charging immediately disappears, allowing your car to run smoothly and quietly. **Specifications** - Compatible models: GMC 2007 – 2014 - Part name: Engine belt tensioner (Accessory belt tensioner) - Brand: Is Delco - SKU number: 38158