Kenworth Expands Paccar TX-12 Pro Automated Transmission Availability for Paccar MX-13 Engines
Kenworth’s T680, T880, and W990 are now available with the Paccar TX-12 Pro automated transmission and the Paccar MX-13 engine.
The T880S is one of three Kenworth models that can now be equipped with the Paccar TX-12 Pro automated transmission. It is also available for the T680 and the W990.
Photo: Kenworth
The Paccar TX-12 Pro automated transmission is now available with the Paccar MX-13 engine for Kenworth’s T680, T880, and W990. It is designed to optimize performance for both on- and off-highway applications such as dumps, plows, tankers, and more.
The TX-12 Pro builds upon the standard TX-12, one of the most efficient on-highway automated transmissions.
“The TX-12 Pro transmission’s integration with the MX-13 engine is a welcomed addition for our Class 8 customers that operate in vocational applications,” said Kevin Haygood, Kenworth’s assistant general manager for sales and marketing.
The TX-12 Pro is optimally engineered to operate with all MX-11 and PX-9 engine ratings – up to 445 hp, 1,700 lb.-ft. of torque, MX-13 engine ratings up to 455 horsepower and 1,650 lb.-ft. of torque, and 70,000 pounds of gross combination vehicle weight (GCVW).
The Paccar TX-12 Pro features many of the TX-18 Pro enhanced capabilities for vocational and select off-highway applications, including Paccar’s Extreme Duty clutch for improved low-speed maneuvering, Rock Free mode to help trucks get unstuck in mud or sand, an off-highway calibration tuned for changing soil conditions, and more. The 12-speed gear set provides wide ratio coverage, allowing for what Kenworth called excellent maneuverability around job sites.
Kenworth has expanded the availability of the Paccar TX-12 Pro Automated Transmission for Paccar MX-13 engines.
Photo: Kenworth/Work Truck
The TX-12 Pro offers dual PTO openings – a bottom mount 8-bolt and 4-bolt rear mount for a combined 95-horsepower capacity.
The transmission is equipped with an internal oil temperature sensor. The sensor shows transmission temperatures on the in-cab 15-inch digital display and provides driver notifications in situations causing excessive temperatures.
As with all Paccar TX-12 and TX-18 transmission models, the TX-12 Pro is standard with Kenworth’s driver-friendly column-mounted, right-hand stalk shifter. The shifter places gear selection and engine brake controls at the driver’s fingertips for enhanced ergonomics, comfort, and overall performance.
Oil maintenance intervals for the TX-12 Pro are 250,000 miles, and the clutch is maintenance-free.
More Vehicle Insights
Kenworth T680 Featuring Special Design Will Transport U.S. Capitol Christmas Tree to Washington, D.C.
A Kenworth T680 departed the Nez Perce-Clearwater National Forest in Idaho this week to deliver the 2026 U.S. Capitol Christmas Tree, a 76-foot Engelmann spruce. This marks the 13th year a Kenworth is delivering the tree.
Read More →
Workhorse Partners with Tristan Fleet Management to Sell and Service Electric W56 Step Vans in Canada
Workhorse’s first Canadian dealer partnership, with Tristan Fleet Management, builds on five years of selling electric step vans in Canada.
Read More →
GM Launches Manufacturing Futures Under its $50M Commitment to Michigan
General Motors’ new initiative, Manufacturing Futures, will connect 2,800 Michigan middle school students each year with advanced manufacturing education and career pathways.
Read More →
Ford Super Duty Fleet Guide Specs Capability and 2027 Updates
Explore 2027 Ford Super Duty fleet specs, gas and diesel engines, towing, payload, configurations, work features, technology, and model-year updates.
Read More →
Re-rating Gross Vehicle Weight Ratings (GVWR): Why and How it's Done
Sometimes, it is not in a fleet’s best interests to have a vehicle at a given GVWR. Changing the GVWR to a special value can be done, but the process is complicated.
Read More →
Which Pickup Trucks Last 250,000 Miles? 2026 Rankings Revealed
Which pickup trucks are most likely to reach 250,000 miles? The 2026 iSeeCars study ranks 12 long-lasting models, with Ram, Toyota, GMC, and Ford among the leaders.
Read More →
Peterbilt Showcasing Transportation Innovations at ATA MCE
Peterbilt showcased Paccar Connect and exhibited several trucks during the American Trucking Associations (ATA) Management Conference & Exhibition (MCE).
Read More →
Volvo Unveils New VNX Vocational Truck & Off-Road Capable Tractor
Volvo Trucks has launched the VNX, a new vocational truck designed for on- and off-road use, and available in three variants. It is powered by the D13 platform, which delivers up to 540 horsepower and 1,950 pound-feet of torque and is EPA 2027 compliant.
Read More →
Truckers’ Strike Rumors, Electric Fleet Lessons, and GM’s New Duramax Lead This Week’s News
Truckers’ strike rumors, Republic Services’ electric fleet lessons, GM’s new 8.3L Duramax, van upfitting, Ford Pro used trucks, and more headline this week’s Truck Chat Cheat Sheet.
Read More →
Morgan Olson Launches North America’s Longest Working Step Van Challenge
Morgan Olson has launched North America’s Longest Working Step Van Challenge, a new customer campaign to find the longest-working qualifying Morgan Olson or Grumman step van actively delivering packages for an independent service provider contracted by FedEx.
Read More →