About IDEM

What we build at Iran Diesel Engine Manufacturing

We are one of the top manufacturers of light, semi-heavy and heavy diesel engines in the Middle East.

1969
Our production complex was established in 1969 as a joint Iranian-German venture under licence from Daimler-Benz of Germany, and was put into operation in 1971.
IDEM's Tabriz works from the air
300 series
With the start of production, the first products in 300 series engines and 314, 352, 355 and 360 types were installed and used on minibuses, buses and trucks manufactured by Iran Khodro and Khavar.
Engine assembly line, from IDEM's old album
400 series
In the past years, due to our close cooperation with the German Daimler company, we added the new generation of 400 series diesel engines in the OM 457 type to our product portfolio, which in terms of quality and power had a tremendous difference with the previous generation.
OM 457 LA.EEV engine
Today
As the range expanded, we now build the 364, 314 and 355 types at Euro 2, Euro 3, Euro 4 and Euro 5 EEV emission levels.
OM 355 LA.EEV engine

From IDEM's old album

Frames of the production halls, the engine test bay and the buildings of IDEM's Tabriz works, from the company's old album. Each one opens larger.

Our success

One of our most important activities and capabilities is the production of industrial engines needed in power generators, irrigation pumps, compressors and agricultural, marine and oil industries. These engines have special technical specifications according to the needs of operational environments.

In addition to supplying diesel engines in Iran, this company has been a supplier of spare parts for these engines for export and holds a grade A supplier certificate from Daimler in Germany, and over the years it has exported its products and parts to various countries in the Middle East and Europe, especially Germany.

The company is currently planning to produce new generation OM 457 engines with the Euro 5 EEV emission standard. The upgrade of OM 355 and OM 364 engines to Euro 5 EEV, and the conversion of their fuel supply system to common rail in order to reduce fuel consumption, is also being done.

Diesel generator set with an OM 355 engine

A record first half in 2026

In the first six months of the Iranian year 1405 (March to September 2026), IDEM built 4,575 engines despite a month of forced shutdown: a historic record in its engine production.

Figures are counted as OM 355 equivalents and come from IDEM's public relations report.

Engines built in the first six months of each Iranian year (21 March to 22 September)
Year	Engines built in the first six months of each Iranian year (21 March to 22 September)
2021	2,307
2022	3,643
2023	2,725
2024	2,982
2025	2,957
2026	4,575 — record

Management system certificates

IDEM holds Quality Management System certificates ISO 9001 and IATF 16949, Occupational Health and Safety ISO 45001 and Environmental Management ISO 14001, and has received the Crystal Statue of Organizational Excellence (EFQM) and the certificate of Consumers’ Rights Compliance.