Buy OEM Mazda Part # LFHJ20300 (LFHJ-20-300). Exhaust Gas Recirculation (EGR) Valve (Right). 2.0 LITER W/O SKYACTIV. 2.5 LITER. From 4/02/2012. Mazda3; w/o Skyactiv-G Engine; From 4/1

Valve. Exhaust Gas Recirculation (EGR).
A Valve used to recirculate small amounts of Exhaust back into the combustion chambers of the engine in order to decrease the combustion temperature, thereby reducing the formation of smog-producing nitrogen oxides.

EGR Valve

Fits 3, 5, 6

2.0 LITER W/O SKYACTIV. 2.5 LITER. From 4/02/2012. Mazda3; w/o Skyactiv-G Engine; From 4/1/12. Mazda5; From 4/1/12.
EGR Valve - Repair or Replace
A failed EGR valve will often have no noticeable symptoms beyond a check engine light, but it does cause your Mazda to operate inefficiently and produce higher emissions. Our technicians have access to manufacturer-approved repair processes and Mazda genuine parts.