The latest in 11mm primary belt drives features a special Gates belt. Additional teeth on both front and rear pulleys increase belt wrap, improve durability and lengthen belt life. Made in USA. The latest in 11mm primary belt drives features a special Gates belt Additional teeth on both front and rear pulleys increase belt wrap, improve durability and lengthen belt life Made in USA UPC 748264623121 Belt Style DriveBelt Brand Name Belt Drives Unit Count 1.00 Ounce Item Weight 11.3 Pounds Part Number 47-31 SE-4 Manufacturer Belt Drives Ltd Material Type Aluminum Alloy Compatible Devices Vehicles (1965-84), Industrial Equipment