Keep your machine running at its best.
Off-Highway applications work hard every day.
Support performance with Allison approved fluid.
Allison Off-Highway Drive and Motion Systems
Aftermarket
THE RIGHT FLUID.
THE ALLISON WAY.
TES 668® may be suitable for selected Allison Off-Highway transmissions.
Fluid choice matters.
The right fluid helps support performance, durability, and uptime.
In demanding Off-Highway applications, choosing the correct fluid is part of protecting what keeps your machine moving.
Fluid choice matters.
The right fluid helps support performance, durability, and uptime.
In demanding Off-Highway applications, choosing the correct fluid is part of protecting what keeps your machine moving.
Designed to help protect what keeps you moving.
Performance Support
Helps support consistent operation in demanding conditions.
Durability
Designed to help protect critical components over time.
Wear Protection
Supports anti-wear performance where approved.
Cold Operation
Helps support performance in challenging temperatures.
Fluid Stability
Designed to resist degradation and support long-lasting performance.
Uptime
Helps keep your equipment ready for the job.
How To Know It’s Genuine?
Allison takes its fluids reputation seriously. Only after an oil meets the Allison standards, we give it our badge of approval and a designated approval number. Allison Approved oils will carry our badge on the bottle, as seen to the right, and with the approval number, for example 668-10002020.
Start with the right recommendation.
Not every fluid is right for every application. Before selecting or changing fluid, always check the correct recommendation for your specific Allison-equipped machine.
Always verify the right fluid before every service operation.
Download the TES 668® brochure
Learn more about Allison Approved Fluids and TES 668® benefits.
Watch the TES 668® video
Discover how the right fluid helps support performance and protection.
Choose Allison approved protection.
Allison Approved Fluids are tested to meet Allison standards.
Check before you choose.
TES 668® may be the right choice for selected Off-Highway applications equipped with Allison products. Before every fluid change, confirm the correct recommendation using the Allison Off-Highway Fluid Selector.
Check before you choose.
TES 668® may be the right choice for selected Off-Highway applications equipped with Allison products. Before every fluid change, confirm the correct recommendation using the Allison Off-Highway Fluid Selector.
Check And Buy
Need support? Talk to an Allison Off-Highway expert.
Our team is ready to help you find the right solutions for your applications.