2021 Chevrolet Trailblazer 1.2L L3 GAS;. 2021 Chevrolet Trailblazer 1.3L L3 GAS;. © 2021 DT Auto Parts Inc. OE Equivalent Fuel Tank Cap;. Fuel Tank Cap;. Gates - Driven By Possibility. Two-way action pressure relief/vacuum relief valve allows fuel tank to ?.
