The GEO Metro CHEVROLET METRO SUZUKI SWIFT EFE UNIT is a throttle body heater designed for engines with sizes 1.0 and 1.3. Made of heat-resistant plastic in Japan, it includes housing spacers for installation and is bolted-on. The item measures 4 inches in length and 1 inch in height. It is compatible with various interchange and OE/OEM part numbers, such as 91172187 and 96068426, and is suited for non-domestic vehicles. This throttle body heater is a reliable option for maintaining optimal engine performance in compatible models.