Enginetech BB1039 | Rod Bearing Set for 2004-2009 Audi 3.2L/3189 DOHC V6 24V Premium-Quality Alloys: Enginetech rod and main bearing sets are crafted from premium alloys tailored to meet specific application requirements, ensuring optimal engine performance. Advanced Bearing Technology: Embrace the future with their aluminum alloy bearings, surpassing traditional copper/tin/lead alloys. Benefit from superior performance, enhanced durability, and eco-friendly engineering at a cost-effective price.