Parts for your 2012 Toyota Mark x-Egr valve

2012 Toyota Mark X EGR valve — is it actually a thing?

For the 2012 Toyota Mark X (GRX130 series) running the 2.5‑litre 4GR‑FSE or 3.5‑litre 2GR‑FSE V6, an external EGR valve isn’t fitted. These petrol D‑4S V6 engines manage NOx emissions without a traditional EGR valve or EGR cooler, so an “egr-valve” isn’t a relevant service item on this model year Mark X.

Technical sources that support this:

• Toyota repair manual (TIS) for GRX130/133 Mark X: Engine Control (4GR‑FSE/2GR‑FSE) and Emission Control sections show no EGR system components or EGR piping in the diagrams.
• Toyota Electronic Parts Catalog (EPC) for GRX130/133: no EGR valve, EGR cooler or EGR pipe listed for 4GR‑FSE/2GR‑FSE