
HPTuners TCM-GB-T93-UO GM T93 TCM Service (Global B) (2024-2026 Duramax)
Fits: Chevrolet • GMC
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By ordering the HPTuners TCM-GB-T93-UO GM T93 TCM Service (Global B) (2024-2026 Duramax) you will earn 400 DIESEL DOLLARS in your SDS Fuel Tank!
HP Tuners TCM-GB-T93-UO is a send-in upgrade service for the GM Global B T93 transmission control module, listed for 2024-2026 6.6L L5P Duramax trucks. You send HP Tuners your original TCM and they perform the upgrade. You buy it because the service is required before VCM Suite BETA can run diagnostics or tuning on the T93.
Fitment
This listing is for 2024-2026 Chevrolet Silverado 2500HD/3500HD and GMC Sierra 2500HD/3500HD trucks with the 6.6L L5P Duramax. HP Tuners describes the service as support for the Global B T93 TCM found in various GM vehicles equipped with the GM 10L80 10-speed transmission. The service is for that one module, so before you pull anything, confirm your truck carries the Global B T93 TCM. Verify fitment by VIN, or call us with your VIN and we will check it.
Why this part
If you tune or diagnose with HP Tuners, a Global B T93 TCM is not ready to work in VCM Suite as it comes from the factory. HP Tuners says this upgrade service is required to enable diagnostics and tuning capabilities in VCM Suite BETA. Once your module has been through the service and is back in the truck, VCM Suite BETA can work with it.
Note the BETA. HP Tuners lists this T93 support in VCM Suite BETA, so that is the version you will be working in for this module.
This is a service, not a bolt-on part. What you are paying for is the work on your own module and the diagnostics and tuning access it opens up.
What you get
- HP Tuners GM T93 TCM Service (Global B), part number TCM-GB-T93-UO
- The upgrade performed on your original T93 TCM after you send it in
- Diagnostics and tuning capability for that TCM in VCM Suite BETA
Installation notes
This is a send-in service, which means you must first send your original TCM to HP Tuners. Read this page in its entirety before purchasing. The steps run like this:
- Confirm by VIN that your truck has the Global B T93 TCM.
- Remove the original TCM. If you are not sure how to get it out of your truck, call the shop before you start.
- Ship it to HP Tuners (ATT: GM T93 TCM Service [Global B]), 700 Eastwood Ln, Buffalo Grove, IL 60089.
- When the service is done and the module is back in the truck, connect with VCM Suite BETA for diagnostics and tuning.
About HP Tuners
HP Tuners makes VCM Suite, the software this service opens the T93 TCM up to. Send-in TCM services like this one are handled by HP Tuners in Buffalo Grove, Illinois.
Frequently asked questions
Do I have to send in my TCM?
Yes. This is a send-in service, so you must first send your original TCM to HP Tuners in Buffalo Grove, IL. The full shipping address is in the installation notes above.
What does the service let me do?
It enables diagnostics and tuning for the Global B T93 TCM in VCM Suite BETA. HP Tuners says the service is required for that.
How do I know my truck has the T93 TCM?
HP Tuners describes the T93 as the TCM found in various GM vehicles equipped with the 10L80 10-speed transmission. Do not assume from the model year alone. Call us with your VIN and we will confirm your truck carries the Global B T93 TCM before you pull the module.
Questions on fitment? Call the shop at the number in the header. We install everything we sell.
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Finish the job
Parts our Wildwood techs pair with this one — take a look before you check out.

Diesel Dollars is Southern Diesel Supply's Loyalty Program. Purchasing with Us Earns you 1 Point for every 1 Dollar spent to use for future buys!
By ordering the HPTuners TCM-GB-T93-UO GM T93 TCM Service (Global B) (2024-2026 Duramax) you will earn 400 DIESEL DOLLARS in your SDS Fuel Tank!


