OTC's 6725 Belt Tensioner Compressor makes replacing engine drive belts and starter generators easier Tool compresses the belt tensioner spring during engine drive belt replacement and starter generator servicing Applications include 2.4L GM eAssist engines found in 2012-16 Buick LaCrosse, 2012-17 Buick Regal, and 2011-14 Chevrolet Malibu Rugged construction ensures a lifetime of reliable performance, even under the harshest shop conditions Similar to OE tool number EN-48932