What is TÜMOSAN? Turkey’s engine and tractor maker
Quick answer: TÜMOSAN Motor ve Traktör Sanayi A.Ş. is a Turkish industrial company founded in 1976 to produce engines and drivetrain components, and today concentrated on diesel engines and tractors. The company describes itself as Turkey’s first diesel engine manufacturer. Transferred to Albayrak Group through privatization in 2004, TÜMOSAN has traded on Borsa Istanbul under the TMSN ticker since 2012. Its production center sits on a 1.6 million square meter site in Konya; the company reports an annual capacity of 75,000 engines and 45,000 tractors. In recent years TÜMOSAN has also entered the defense sector with the Pusat 4×4 tactical armoured vehicle, military diesel engines and marine engines, and it is listed in the 2026 Product Catalog of the Turkish Defence Industry Agency (SSB).
What does TÜMOSAN make?
The company’s main product groups are tractors, diesel engines, agricultural equipment and forklifts. According to Albayrak Group’s corporate page, TÜMOSAN offers 268 tractor models across 10 series and more than 280 agricultural equipment models. On the engine side, it builds 3- and 4-cylinder diesels for agricultural machinery, industrial applications, generator sets and marine craft. On the defense side, the portfolio consists of the Pusat 4×4 tactical wheeled armoured vehicle, the TMSN X series of military diesel engines, ALP powerpacks, marine engines, gearboxes and drivetrain components, and vehicle electronics units.
Company file
| Item | Detail | Source |
|---|---|---|
| Trade name | TÜMOSAN Motor ve Traktör Sanayi A.Ş. | Public Disclosure Platform (KAP) |
| Founded | 1976 (groundbreaking 1975) | Company history |
| Production center | Konya, 1.6 million m² site | Company website |
| Main shareholder | Ereğli Tekstil Turizm San. ve Tic. A.Ş. (approx. 60.9 percent) | Public Disclosure Platform (KAP) |
| Stock exchange | BIST Yıldız, TMSN (IPO in 2012) | Public Disclosure Platform (KAP) |
| Capacity | 75,000+ engines/year, 45,000+ tractors/year | Company website |
| Dealer-service network | 400+ across Turkey | Company website |
| Defense revenue | No separate figure has been officially disclosed. | — |
A short history: from FIAT license to indigenous engines
According to the company’s official history, TÜMOSAN’s foundations were laid in 1975 at a ceremony attended by Necmettin Erbakan, then Minister of Industry and Technology; incorporation was completed in 1976. In 1977 the company signed a tractor and diesel engine license agreement with Italy’s FIAT. Engine production began in 1981 and the first tractors rolled out in 1984. After a long period as a state economic enterprise, the company was transferred to Albayrak Group under a privatization in 2004; the details of the ownership structure are covered in the Who owns TÜMOSAN? file.
Tractor models of 105 and 115 hp followed in 2013-2014, new-generation 4- and 6-cylinder engine development work and the Pusat’s debut at IDEF 2017 came in 2017, forklift production started in 2018, and marine engines and generator sets joined the portfolio in 2019. In 2023 the company announced a common-rail engine family meeting the Stage V emission level and said emission testing of these engines had begun at the TÜBİTAK RUTE laboratories.
Position in the defense industry
TÜMOSAN positions itself in defense not as a prime contractor but as a powerpack and subsystem supplier. Its known programs in this field are: the ALTAY tank powerpack development contract, conducted between 2015 and 2017 and terminated by mutual agreement; the Special Purpose Tactical Wheeled Armoured Vehicle (ÖMTTZA) engine supply contract signed with FNSS in 2019, covering 100 vehicles; the supply of rewind engines for aircraft arresting systems under a contract with SDT; and the marine engine integrated into the ULAQ Armed Unmanned Surface Vehicle. These programs are examined in the military diesel engine programs file. The marine engine integrated into the ULAQ entered the Turkish Armed Forces inventory at a ceremony held on December 20, 2025.
The tractor business: the funding and production base for defense
The company’s main source of revenue is tractor and agricultural equipment sales. A company announcement on the December 2025 visit by Senegal’s COSIAS Consortium notes that the Konya site houses seven factories. The casting, machining, engine and gearbox production infrastructure built up for tractors also forms the production base for military vehicle and engine projects. The company reports exports to 23 countries on four continents; foreign-market details are covered in the export file.
Frequently asked questions
In which province does TÜMOSAN manufacture?
The production center is in Konya; the head office is in Istanbul. The Konya site covers 1.6 million square meters and, according to company announcements, contains seven factories.
Is TÜMOSAN a state-owned company?
No. Founded as a public enterprise in 1976, the company was transferred to Albayrak Group through privatization in 2004. It has traded on Borsa Istanbul since 2012.
What are TÜMOSAN’s defense products?
The SSB 2026 catalog lists the Pusat and Pusat Hybrid vehicles, the ALP 1-4 powerpacks, the TMSN engine and gearbox families, marine engines, control units and instrument panels. For a full inventory, see the defense products guide.
Are TÜMOSAN engines indigenous?
The company states that it develops its engines and gearboxes with its own engineering and that they carry a high local-content ratio; for the marine engine on the ULAQ, local content above 90 percent was reported. Independent local-content audit results have not been made public.
Does TÜMOSAN build the ALTAY tank’s engine?
No. The ALTAY powerpack development contract the company signed in 2015 was terminated by mutual agreement on February 24, 2017. Series-production tanks use powerpacks from other suppliers.
Sources and verification note
The information in this file was compiled from the company’s official website, records on the Public Disclosure Platform (KAP) and press reports. Capacity and model counts are company statements. Accessed: August 13, 2026.
- https://www.tumosan.com.tr/en/history
- https://www.tumosan.com.tr/tr/haberler/cosias-konsorsiyumundan-tumosana-konya-ve-istanbul-ziyareti
- https://www.tumosan.com.tr/tr/haberler/tumosan-motor-ailesi-cevre-bilinci-ile-yeniden-sekilleniyor
- https://kap.org.tr/tr/sirket-bilgileri/genel/1694-tumosan-motor-ve-traktor-sanayi-a-s
- https://www.albayrak.com.tr/sektorler/traktor-motor/tumosan-motor-ve-traktor-sanayi/
- https://www.dha.com.tr/ekonomi/tumosanin-yerli-marin-motoru-envantere-alindi-2782172
- https://www.bloomberght.com/milli-proje-altay-tankinda-guc-grubu-sozlesmesi-iptal-oldu-1988874
