Buick Regal Chevrolet Impala 3.6L Fuel Injector 12634123 Precise Atomization

This replacement matches the original in material and process, using a high-strength stainless steel valve body and precision electromagnetic coils; durable under long-term high-pressure operation. OEM numbers 12634123, compatible with 12634126 and 12629927, for Buick LaCrosse, Chevrolet Impala 3.6L models. Function: atomizes fuel at 1.0 MPa pressure to ensure even air-fuel mixture and improved combustion efficiency. Installation medium; requires removing the intake manifold and replacing seals; recommended for experienced technicians.