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Used Eaton EEO-18F112C Automatic Transmission – Kenworth T-680 This is a used Eaton EEO-18F112C 12-speed automated manual transmission (UltraShift Plus), removed from a Kenworth T-680. Built for heavy-duty on-highway applications, this transmission combines Eaton’s proven mechanical durability with automated shifting for improved drivability and efficiency. The UltraShift Plus is a common OEM option in Kenworth T-680 tractors used in linehaul and regional haul operations. It delivers smooth, consistent shifts, reduced driver fatigue, and optimized fuel economy compared to traditional manual transmissions. Key Features: 12-speed automated manual transmission (UltraShift Plus) Model: EEO-18F112C Removed from a Kenworth T-680 Designed for Class 8 on-highway use Ideal for linehaul and regional haul applications Eaton reliability and wide parts availability Condition: Used, removed from service Sold as-is unless otherwise stated Suitable for direct replacement or rebuild Notes: Buyer is responsible for verifying engine compatibility, ECU programming, and VIN-specific requirements for their Kenworth T-680 prior to purchase. Serial number, photos, and additional details available upon request.