Power Generation Application -= O A Sales & Service =-
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OAS has been proving quality products and services in Diesel Generator and power generation equipments for over a decade in the market – emergency generators, industrial generators, and marine generators. OAS. Generator sets offer quality brand name diesel generators and engines new and good used sets. We provide generators ranging upto 2000 kVA. Our Generators are tailored to suit Client requirements and are designed for manual, automatic, synchronized operation. Our services also include warrantee after sales service, parts support and maintenance contracts.

Electric Generators

We offer every product you want in the power generation market

Generator sets
Generator drive engines
Generator ends
Sound proofing and acoustic enclosures
Acoustic and weather proof canopies
Mobile generators
Generator parts and accessories

Our professional staff can help you select, design, upgrade, repair, support, or maintenance your generator for industrial or electrical standby applications. We have services for installation, upgrading and maintenance contract. Each service is customized to suit every need of our customers

Generator drive engines

We offer a variety of generator drive engine rating from 30 kVA to 1600 kVA –new , used and recon engines. Generator drive engines operate at 1500 to 1800 rpm. for both 50 and 60 Hz. electrical system.


Our alternators feature Marathond, Stamford, Leroy somer, and etc. We stock almost complete range of alternator from 30 kVA to 1000 kVA to match every need of our customers.

With our large inventory and our extensive industry contacts, we can find the products you want whether new, used or even the most hard-to-find parts almost right away.

No matter where you are in Thailand, we serve you with commitment in full customer satisfaction.


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