Quality tests on this part include torque testing, spring-back testing, corrosion-resistance testing, and on-vehicle testing The Automatic Belt Tensioner Assembly is recommended for replacement when replacing the serpentine belt. All Dorman products are engineered in the United States and backed by 100 years of automotive aftermarket experience Dorman Products, Inc. 2004-2008 Chevrolet Impala Accessory Belt Tensioner - API 17832-07588421 Dorman 419-318 Accessory Drive Belt Tensioner Assembly For Specific Lexus Toyota Models Fits Select 2007 2021 Toyota Tundra 2010 2021 Lexus Gx 6c78fbd8 494c 4111 Aeb2 0e7f796e7414.bcc6bb19cff7d759ee280d496e351fef At Dorman, we take pride in the quality of our products and in your satisfaction., Belt Tensioner Assembly Dorman 419-209 Drive Belt Tensioner Assembly Our prestigious position stems from a unique combination of application expertise, innovative product design, and breadth of product offerings, many of which are not conveniently or economically available elsewhere. is well-known as a leader in providing quality auto parts to the aftermarket.