Custom Fit: This fuel injector for GMC Canyon is designed to meet the expectations and provide better performance. We strive for satisfactory functions on nice materials and precision engineered fuel injector. With our direct replacement fit, this fuel injection nozzle will save your time and effort on car accessories. OE Number: 12589465 for GMC Canyon SL, SLE, SLT, WT 2.8L 3.5L 2006 for GMC Envoy SLE, SLT 4.2L 2006-2007 for GMC Envoy XL SLE, SLT 4.2L 2006 for Chevrolet Colorado LS, LT, WT 2.8L 3.5L 2006 for GM 4.2L LL8 Atlas motor Specification: O-Rings Included: Yes, preinstalled Orifice Type: 4 Holes Disc Material: Metal, Plastic Voltage: DC 12V Pin Number: 2 Pins Size: 80x19mm / 3.15"x0.75"(L*W) Package includes: 5pcs fuel injector Features: This fuel injector comes with efficient fuel injection and high impedance coils for good performance. The nozzle features durable effective rubber O-Ring that can seal fuel vapors in and keep them from leaking. Installation of Fuel Injection Nozzle. 1. Make sure the engine is cool down. Disconnect the battery. 2. Remove the bolts and brackets from the fuel rail. 3. Disconnect the plug on each injector. 4. Lift the fuel rail and remove the injector from the fuel rail. 5. Press the new injector into the rail. Reattach the fuel rail and put the injectors in their respective holes. 6. Bolt down fuel rail. Reattach fuel line. Plug in injector connectors. Reconnect battery. 7. Double check for fuel leaks before and after starting the engine. Notes:This is non-OEM part, accessory ONLY!