This connecting rods and piston rings kit is designed for 2.4L GM engines and includes components matching part numbers 12665165, 12784490, 19180835, 19180836, 89018112, and 12611360.All parts are inspected before packaging and prior to shipment.The kit is engineered to meet specifications for proper fit and function.Additional reference part numbers: S224-3959, GA9034, 12654958, 8217, 12598216, 12596088, 12611360 Interchange numbers include: 12578324, 12578326, 12593744, 12593745, 12603910, 12608531, 12609858, 12616970, 12621251, 12631102, 12631103, 12631967, 12643172, 12646457, 12657184, 12659419, 12665165, 12784490, 19180835, 19180836, 89018112 Compatible vehicles: - LaCrosse (2010–2016) - Regal (2011–2017) - Verano (2012–2017) - Captiva Sport (2012–2015) - Cobalt (2006–2008) - Equinox (2010–2017) - HHR (2006–2011) - Impala (2014) - (2008–2014) - Terrain (2010–2017) - G5 (2007–2008) - G6 (2006–2010) - Solstice (2006–2009) - Aura (2007–2009) - Ion (2006–2007) - (2007–2010) - Vue (2008–2010) Piston specifications: - Cylinder bore diameter: 88 mm - Piston length: 49.25 mm - Compression height: 27.75 mm - Connecting rod bolt length: 58 mm - Bolt diameter: 20 mm Ring specifications: - ring: 88 x 1.20 mm - Second ring: 88 x 1.50 mm - Oil ring: 88 x 2.50 mm Package includes: 4 piston, ring, and connecting rod assemblies.