TÜMOSAN gearboxes, drivetrain and vehicle electronics
Quick answer: One of the things that sets TÜMOSAN apart in the Turkish defense industry is that, beyond the engine, it builds the complete driveline chain and vehicle electronics in-house. Under the company’s name, the SSB 2026 catalog lists the TMSN 3007 ATR, TMSN 1308 MT/AMT and TMSN 2506 AT gearboxes, a transfer case, differential, wheel hub and independent suspension system among the mechanical components, alongside the DMKÜ, TEKÜ, HAKÜ and HGDÜ control units, instrument panels for military vehicles, marine craft and construction machinery, and a range extender system. These components are used in the Pusat vehicle, the ALP powerpacks and the ULAQ’s powerpack control.
The gearbox family
The catalog lists three gearbox types: the TMSN 3007 ATR, the TMSN 1308 MT/AMT (manual and automated manual) and the TMSN 2506 AT (automatic). In the company’s general product communication, the family is presented as synchromesh manual, torque-converter automated and fully automatic options. The 8+1 forward synchromesh automatic gearbox used in the Pusat is the family’s military application. At IDEF’25 the company displayed its torque-converter and synchromesh transmissions together with the ALP1/ALP2 powerpacks. The engines these gearboxes pair with are described in the TMSN X series file.
Transfer case, axles and suspension
Further down the driveline chain come electromechanically controlled transfer cases, differentials, wheel hubs and an independent suspension system. The IDEF’25 announcement presented the transfer cases and front axle systems as examples of the company’s engineering capability beyond engines; company executive Volkan Gün said the transfer cases developed for high-torque applications improve operational reliability. The independent suspension is the core component of the Pusat’s off-road capability. Producing all of these components under one roof is the basis of the high local-content ratio reported for the Pusat 4×4.
| Component | Catalog name | Known application |
|---|---|---|
| Gearbox | TMSN 3007 ATR / 1308 MT-AMT / 2506 AT | Pusat, ALP powerpacks |
| Transfer case | TÜMOSAN Transfer Case | 4×4 tactical vehicles |
| Differential, wheel hub | Catalog items | Pusat driveline |
| Independent suspension | Independent Suspension System | Pusat 4×4 |
| Engine control | DMKÜ / TEKÜ | TMSN engines, tractors |
| Hybrid control | HAKÜ / HGDÜ | Pusat Hybrid |
| Instrument panels | Military vehicle / marine / construction machinery panels | Pusat, marine platforms |
| Range extension | Range Extender System | No details officially disclosed. |
Vehicle electronics: from the DMKÜ to the HGDÜ
TÜMOSAN’s electronics portfolio rests on four control units: the Diesel Engine Control Unit (DMKÜ) manages the engines’ injection and emissions; the TÜMOSAN Electronic Control Unit (TEKÜ) handles vehicle-level functions; and the Hybrid Vehicle Control Unit (HAKÜ) and Hybrid Power Distribution Unit (HGDÜ) are the brain and power router of the diesel-electric architecture used in the Pusat Hybrid. In its IDEF 2023 announcement, the company counted the electronic control and steering systems used in military land vehicles, tractors and marine powerpacks as part of the portfolio. The instrument panels are three separate catalog items, in military vehicle, marine and construction machinery versions.
Hybrid architecture and the range extender
The HGDÜ and HAKÜ, developed alongside the Pusat Hybrid, appear in the catalog as standalone products, signaling the company’s intent to sell the hybrid architecture to other platforms as well. The Range Extender System item belongs to the same family; it can be assessed as serving to extend range on electric platforms via a diesel generator, but the system’s technical details have not been officially disclosed. The hydrogen fuel cell prototype announced at IDEF’25 under the TENMAK-Gebze Technical University cooperation is the research arm of this electrification line.
Scale inherited from tractors
Nearly all of these components are military derivatives of the gearboxes, axles and hydraulic systems TÜMOSAN has built for decades in tractor production. An annual output of 45,000 tractors provides casting and machining scale for the drivetrain components; the company’s production infrastructure is built on that scale. The same approach on the engine side can be seen in the S8000 family.
Frequently asked questions
Which vehicles use TÜMOSAN gearboxes?
The known applications are TÜMOSAN tractors, the Pusat 4×4 and the ALP powerpacks. The catalog lists three gearbox types.
What does the DMKÜ do?
The Diesel Engine Control Unit is the electronic unit managing the engine’s fuel injection, emission functions and protection modes, and it was developed by TÜMOSAN.
What is the difference between the HAKÜ and the HGDÜ?
The HAKÜ is the control unit managing the hybrid vehicle’s driving and energy strategy; the HGDÜ is the distribution unit routing power between the battery, the generator and the electric motor.
What is the Range Extender System?
A TÜMOSAN product listed in the SSB catalog; its technical details have not been officially disclosed. It is mentioned together with the hybrid product family.
Sources and verification note
The component list is based on the SSB 2026 catalog and the application information on company announcements; the assessment concerning the range extender system is marked as interpretation. Accessed: August 13, 2026.
- https://www.tumosan.com.tr/tr/haberler/tumosan-idef25te-gucunu-ve-yerli-muhendisligini-sergiledi
- https://www.tumosan.com.tr/tr/haberler/tumosan-urunleri-ile-2023-idef-fuarina-damga-vurdu
- https://www.defenceturk.net/tumosanin-guc-grubu-ve-alt-sistem-calismalari
- https://www.defenceturk.net/pusat
- https://www.hurriyet.com.tr/gundem/tumosanin-askeri-araci-pusat-hibrit-idef21de-41875257
