This is a set of two NGK Y207TS glow plugs designed for a 1979-1980 Audi 5000 with a 2.0L L5 diesel engine. The glow plugs are made of copper, measure 2.25 inches in length, and operate at a voltage of 12V. They feature a vintage design and have an installation depth of 1.125 inch. The manufacturer part number is Y-207TS, and they can replace part number 176-1011. Made in Japan by NGK, these glow plugs are suitable for diesel fuel type vehicles.