How do I choose the right capacity for my project?

Required capacity is calculated from the full load list (motors, lighting, HVAC, etc.). In Iran, climate derating must be applied due to altitude and heat — our free calculator handles this and adds a 20% safety margin.

What is the difference between Perkins, Cummins, Volvo Penta, Caterpillar, KOHLER, and MTU?

Each brand has its specialty: Perkins for fuel efficiency, Cummins for stable instantaneous power, Volvo Penta for quiet operation, Caterpillar for heavy industry, KOHLER for smart controllers, MTU for Tier III/IV data centers. Our advisors recommend the best fit for your use case.

What does the 2-year warranty cover?

Written commitment to replace or repair on technical defect, supply of genuine parts, periodic service, and 24-hour technical support for the first two years. Service contracts can be renewed afterward.

How long does delivery and installation take?

In-stock models ship in 3–7 business days. Custom orders take 3–8 weeks depending on brand and capacity. Installation and commissioning by our team takes 1–3 business days.

Is financing or installment available?

Yes. For industrial projects, installment plans through partner banks are available. Terms depend on purchase amount, company history, and credit profile — our sales team explains details during consultation.

Do you provide service and maintenance after purchase?

Yes. We offer routine service (oil/filter changes, load-bank testing, oil analysis), emergency repair, and long-term maintenance contracts. 24-hour emergency support is active for critical situations.

What is the difference between Standby, Prime, and Continuous duty?

Standby: backup only during outages (max 200 h/year). Prime: extended runtime with variable load (no hour limit, ~70% average load). Continuous: 24/7 operation at fixed load — for remote sites and data centers.

Can I visit your workshop or warehouse?

Yes. With prior coordination, customers can visit our headquarters in Tehran, 35th Metri Gheytarie, Roshanaei St, No. 12, Unit 6 or our warehouse for visits on Azadegan Hwy to inspect and test diesel generators before purchase.

2-Year Written Warranty

Power Security Advisor
Diesel Generator

Buy diesel generators from trusted dealers of Perkins, Cummins, Volvo Penta, MTU, Caterpillar and KOHLER. Best prices in Iran with 2-year warranty.

Calculate capacity & fuel Contact

2-year written warranty

Trusted dealer of 6 global brands

20 to 4000 kVA range

Why Danesh Diesel?

Our services at a glance

Expert Consultation

Free consultation to choose the best diesel generator for your needs

Valid Warranty

Authenticity guarantee with full after-sales support

24/7 Support

Technical support around the clock, every day of the year

15+

Years Experience

500+

Successful Projects

24/7

Support

98%

Customer Satisfaction

Why buy from Danesh Diesel?

Four reasons project managers trust us

Trusted Dealers

Trusted dealer of six global brands
Authentic with factory warranty
Genuine parts and service

Best Price

Direct purchase without intermediaries
Special discounts for industrial projects
Financing and installment options

Free Consultation

Free on-site project visit
Capacity calculation with climate derating
24-hour support line

2-Year Written Warranty

Written replace-or-repair commitment
Extensive after-sales service
Long-term service contracts

Contact us now

Solutions Tailored to Your Business

Diesel generators for every industry

Heavy Industry

Factories, mines, petrochemical, and steel industries

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Commercial & Office

Malls, hotels, hospitals, and towers

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Residential

Apartments, villas, and residential complexes

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Data Centers

Data centers and server rooms

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Best Sellers

Most popular diesel generator models

From 400 to 2500 kVA — built for heavy industry and data centers

Cummins

550kVA

Danesh Diesel Marketplace

Iran's largest diesel generator marketplace

Full brand range from 20 to 2500 kVA, competitive pricing, and free expert consultation.

Trusted dealer

Six global brands

Written warranty

Full 2 years

Best price

Direct purchase

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15+

Years active

500+

Successful projects

6

Global brands

98%

Customer satisfaction

Knowledge Base

Our experience for managers, engineers, and equipment buyers

All our specialist content in one place — free, no signup required, dedicated to growing technical knowledge in Iran's power industry.

20+ specialist articles on power engineering
Online capacity calculator with climate derating
In-depth global brand comparisons
Guides for selection, installation, and maintenance

View articles Online calculator

۲۰+

Specialist articles

Free, no signup

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Free financial tool

Calculate your factory's power outage loss

Calculate your monthly power outage loss, diesel generator breakeven point, and the impact of USD inflation on costs in a few clicks.

Nationwide Service Network

Presence Across Iran

Our specialized service and maintenance team across 20 major Iranian cities is ready to meet your needs. Our internationally certified technicians bring years of experience and multi-brand expertise.

20+

Cities Covered

21+

Expert Technicians

24-72

Hour Response

2-Year

Written Warranty

Tehran

Mashhad

Isfahan

Tabriz

Shiraz

Ahvaz

Kerman

Bandar Abbas

Rasht

Hamedan

Karaj

Qom

Urmia

Kermanshah

Yazd

Ardabil

Zahedan

Zanjan

Sari

Bushehr

View Full Service Network

Frequently asked questions

Everything you need to know about buying a diesel generator

Online Warranty Card

Transparent Warranty, Honest Commitment

All Danesh Diesel generators come with a 2-year written warranty. A digital warranty card is issued after on-site inspection and approval by our technical expert during installation. Mechanical and electronic coverage terms are fully transparent and traceable.

1

Online Registration

Register your device and buyer information in Danesh Diesel warranty system

2

Technical Inspection

Our expert inspects the device during installation and signs the approval form

3

Warranty Card Issued

A digital warranty card with a unique tracking code is issued and sent to you

Mechanical Coverage

24 months from installation date

Diesel engine (Block, Piston, Crankshaft, Camshaft)
Turbocharger and intercooler
Fuel injection system (pump and nozzles)
Cooling system (radiator, water pump, thermostat)
Lubrication system (oil pump, filters, oil cooler)
Generator / alternator (stator, rotor, bearings)
Exhaust system and manifolds
Flywheel and mechanical coupling

Electronic Coverage

24 months from installation date

Control and monitoring system (DSE / ComAp / Datakom panel)
AVR — Automatic Voltage Regulator
Protection system and overload / short-circuit relays
Battery charger and auto-start system (ATS / AMF)
Temperature, oil pressure and fuel level sensors
Electronic Governor speed control system
Control wiring and command panel
Communication and remote monitoring modules

2-year written warranty

24/7 technical support

Dedicated technicians in 20 cities

Genuine parts from central warehouse

Request Warranty Card Issuance

Warranty card is issued after installation and technical expert approval

Start with the right choice

Our experts recommend the best option based on your capacity, budget, and usage. Consultation is completely free.

Free consultation

24h response

Tech support

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Power Security AdvisorDiesel Generator