APPLICABLE MODELS - Electronic Throttle Body Compatible with Rainier/Escalade ESV/Avalanche 1500/Express 1500/Express 2500/Express 3500/Silverado 1500/Silverado 1500 Classic/Silverado 1500 HD/Silverado 2500/Silverado 2500 HD/Silverado 2500 HD Classic/Silverado 3500/Silverado 3500 Classic/SSR/Suburban 1500/Suburban 2500/Tahoe/Trailblazer EXT. FIT VEHICLES - Electronic Throttle Body Replacement part number 12570800 12679525, S20006 2172293 217-2293 673000 67-3000 977307 977-307 ETB0019 NTB1009 RTB1009 SKTB1008 SK977307 TB1008. 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, and come with pre-coated threads to assist installation. NOTES - Please carefully check your vehicle year & make & model，pictures and parts No to confirm the compatibility before purchasing. Please contact us if any question of fitment.