OEM:12641740, GM422,12677329, 12677329,M73113, FI1501, 43519 Made of high-quality materials. The fuel pump is mainly made of iron, which ensures good durability, is not easy to age, has good heat resistance, high mechanical strength and is not easily deformed. Perfect replacement parts: Perfect fit and finish easy assembly, great replacement for your original one. Authentic Original Equipment Manufacturer (OEM) part Installation Step of High Pressure Pump : 1.Detect high pressure pump O-ring and use clean engine oll slightly wetting insert roller tappet into vacuum pump. 2. Rotate the crankshaft until the roller tappet is at its lowest point Insert the high pressure pump into the vacuum pump. Fit for: LaCrosse 2010 – 2015 LaCrosse 2012 – 2015 ATS 2013 – 2015 CTS 2010 – 2015 SRX 2010 – 2016 XTS 2013 – 2017 Camaro 2012 – 2015 Caprice 2012 – 2017 Impala 2012 – 2018 Impala Limited 2014 – 2016 Colorado 2015 – 2016 Equinox 2010 – 2017 Canyon 2015 – 2016 Terrain 2010 – 2017Modified Item:NoOther Part Number:12641740, M73113, FI1501, 43519Engineering Name:Direct Injection High Pressure Fuel PumpFitment Type:Direct ReplacementInterchange Part Number:12641740, M73113, FI1501, 43519Custom Bundle:NoGasket/Seal Included:YesSuperseded Part Number:12641740, M73113, FI1501, 43519AAIAPart Type Description:Direct Injection High Pressure Fuel PumpFuel Pump Type:High Pressure PumpPackage:1 x High Pressure Fuel Pump As pictures