Engine Control Module (ECM) Chevy Trailblazer EXT 03-05, Buick Rainier 4.2L
Buick Rainier 04-05, LH engine, 4.2L. Chevrolet Trailblazer (113 W.B.) 03-05, LH engine, 4.2L. Chevrolet Trailblazer (129 W.B.) 03-05, LH engine, 4.2L. Year/Model: 2005 Chevy Trailblazer EXT. Search for more parts for TRAILBLAZER EXT.