APPLICABLE MODELS - Electronic Throttle Body Compatible with Malibu 2008-2012,Silverado 1500 2007-2012,Express 1500 2008-2012. FIT VEHICLES - Electronic Throttle Body Replacement For Savana 1500 2008-2012,Sierra 1500 2007-2013. QUALITY & FUNCTION - DOSKJOK Electronic Throttle Body are manufactured under rigorous scientific standards and 100% tested out of the factory.Fix engine stalling, failing to start, electronic throttle warning light came on, hesitation or power surging on acceleration. INSTALL - Throttle Body directly replace the old parts in the original position of the installation without change,easy to install on your vehicle. NOTES - Please carefully check your vehicle year & make & model，pictures and parts No to confirm the compatibility before purchasing. If you have any questions, please contact us via the Amazon Contact Seller Form. ✔️CAUTIONS ✔️Pls carefully verify your year & make & model in the product details or check your parts pictures, parts No with ours before purchasing so as to prevent wrong purchasement and unnecessary expenses. ✔️If you find the parts not fit your car when you received, pls kindly send it back with undamaged package. Thank you! ✔️If you have any questions, contact with us, we will reply you in 24 hours and offer the solve way for you.