Features 1.Applicable Models: Engine air intake heater relay is fit for 2500 Pickup. Please confirm whether your model is applicable before buying. 2.OE Number: The part numbers of reference are 5187880AC, 56029173AB, please confirm whether it is consistent with the OE you need. 3.High Performance: The engine intake manifold heater relay has high starting power and reduced starting switching current to ensure high performance operation. 4.Durable Construction: Air intake heater relay is made of premium material, which is hardness, reliable, stable, sturdy and durable and has a long service life. 5.Easy Installation: Comply with OEM specifications to ensure that the shape and function match the original vehicle, perfect replacement without additional modifications are required. Specification Item Type:IntakeHeaterRelayMaterial: Metal + PMCOENumber:5187880AC, 56029173ABFitment:For 2500 Pickup 2007-2010 Package List 1 xRelay1 xPackage ofAccessories(8PCS) Note Please double check the part number of your item, matching information is for reference only. Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement.