Allison Transmission 4500 RDS Model Now Pairs with Cummins X15N Natural Gas Engine, Delivering Enhanced Performance and Efficiency
Rhea-AI Summary
Allison Transmission (NYSE:ALSN) announced that its 4500 Rugged Duty Series (RDS) fully automatic transmission has been integrated with the Cummins X15N natural gas engine and is fitted in Kenworth T880 tractors, with availability for Kenworth L770 and Peterbilt 567 and 520 models. The Cummins X15N delivers 500 horsepower and 1,850 lb-ft of torque. Ozinga Renewable Energy Logistics has deployed the X15N + Allison 4500 RDS combination in fleet operation, and the companies highlight improved drivability, increased payload potential from lower engine weight, and lower NOx emissions versus diesel; use of renewable natural gas is cited as able to produce a negative carbon footprint.
The announcement emphasizes fuel-agnostic compatibility—diesel, electric, or natural gas—and directs readers to AllisonTransmission.com for more information.
Positive
- Cummins X15N rated at 500 horsepower
- Cummins X15N rated at 1,850 lb-ft torque
- 4500 RDS integration available on Kenworth T880, L770, Peterbilt 567 and 520
- Field deployment by Ozinga Renewable Energy Logistics demonstrating operational use
Negative
- Negative carbon claim is contingent on access to renewable natural gas
News Market Reaction 1 Alert
On the day this news was published, ALSN declined 1.24%, reflecting a mild negative market reaction.
Data tracked by StockTitan Argus on the day of publication.
Ozinga Renewable Energy Logistics has successfully deployed the Cummins X15N engine paired with the Allison 4500 RDS transmission, demonstrating how sustainability and operational excellence can go hand in hand. As an early adopter of natural gas-powered vehicles, Ozinga continues to validate emerging technologies that reduce emissions and enhance fleet performance.
"The lighter weight of the X15N engine, combined with the optimized performance of the 4500RDS transmission, not only enhances efficiency and performance but also increases payload capacity, reducing our total cost of vehicle ownership while supporting our sustainability objectives," said Brian Erickson, Director of Transportation, Ozinga Energy.
"The X15N features a broader torque curve, providing better low-end torque and improved drivability, particularly in challenging conditions such as hill climbing," said David King, Product Manager of Natural Engines, Cummins. "Additionally, the X15N is inherently lower in NOx emissions compared to diesel engines and when using renewable natural gas, it can achieve a negative carbon footprint, aligning well with customer demands for cleaner fuel alternatives."
The successful integration of Cummins and Allison technologies demonstrates how industries can adopt cleaner fuel solutions without compromising on performance. This achievement leverages the advanced capabilities of the Cummins X15N engine, with its 500 horsepower and 1850 pounds per foot of torque, and the proven performance of the Allison 4500 RDS transmission.
"The Allison 4500 RDS transmission delivers the proven reliability and durability required to handle the tough duty cycles and demanding delivery schedules in heavy duty tractor and vocational truck applications. This partnership showcases Allison's dedication to ensuring our product seamlessly integrates with the latest technological advancements and helping customers achieve their efficiency and sustainability goals," said Rohan Barua, Vice President, North America Sales, Global Channel and Aftermarket, Allison Transmission.
Allison transmissions pair with all propulsion solutions, including diesel, electric or natural gas. This provides customers with the power of choice in selecting the energy source that best suits their needs. In addition to the Kenworth T880, the Kenworth L770, Peterbilt 567 and 520 can all be ordered with the Allison 4500 and Cummins X15N combination.
For more information on Allison Transmission's fuel-agnostic solutions, visit AllisonTransmission.com.
About Allison Transmission
Allison Transmission (NYSE: ALSN) is a leading designer and manufacturer of propulsion solutions for commercial and defense vehicles and the largest global manufacturer of medium- and heavy-duty fully automatic transmissions that Improve the Way the World Works. Allison products are used in a wide variety of applications, including on-highway vehicles (distribution, refuse, construction, fire and emergency), buses (school, transit and coach), motorhomes, off-highway vehicles and equipment (energy, mining, construction and agriculture) and defense vehicles (tactical wheeled and tracked). Founded in 1915, the company is headquartered in
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SOURCE Allison Transmission, Inc.
FAQ
What did Allison Transmission announce on October 6, 2025 about the 4500 RDS and Cummins X15N?
What are the performance specs of the Cummins X15N engine paired with ALSN 4500 RDS?
Which fleets have deployed the Cummins X15N with Allison 4500 RDS as of October 6, 2025?
How does the X15N + 4500 RDS pairing affect emissions for ALSN customers?
Which truck models can be ordered with the Cummins X15N and Allison 4500 RDS combination?
Where can investors and customers find more information about Allison's fuel-agnostic solutions?
