This is the emission control system adapter plate for 19892-1985 Chevrolet S10, Blazer, and GMC Jimmy trucks. This is also used on Isuzu trucks. This is a brand new, factory OEM, genuine GM/Isuzu part, still in the original box. This is for those trucks with the 1.9L 4 cylinder.

GM part # 94212232

Isuzu part # 8-94212232-0

Item is number 12 in the GM diagram.