EGR Valve FOR VAUXHALL ASTRA H 1.6 04->10 Z16XE1 Z16XEP Petrol. This is an original quality part manufactured by Pierburg. FOR VAUXHALL ASTRA H. Code: Z16XEP CRITERIA: Front-Wheel Drive; Z 16 XEP. Code: Z16XE1;Z16XEP CRITERIA: Front-Wheel Drive; Z 16 XE1, Z 16 XEP. Q18116Q, Q19122Q, Q19311Q, Q19421Q.