KOMATSU
Maintenance, repair and parts support for hydraulic excavators, wheel loaders, dozers and dump trucks.
Message us about Komatsu
Komatsu & Bomag Specialist Service
No more downtime.
Maintenance, fault diagnosis and genuine spare parts — on site, in our workshop, and just one WhatsApp message away.
25years of experience, since 2001
20expert technicians
8service vans
Türkiyenationwide on-site service
Who we are
Delta İş Makinaları
Komatsu Service Specialists
We provide professional maintenance, repair and overhaul services for Komatsu construction machinery. At our Ankara workshop we overhaul engines, transmissions, hydraulic pumps and hydraulic control valves under warranty, and our service vans come to wherever your machine is working.
Authorized Komatsu Service, Bomag service More about us
Our services
From job site to workshop, full support
Periodic Maintenance
250 / 500 / 1,000 / 2,000-hour maintenance plans, oil and filter changes, and checklist-based reporting.
Plan maintenance →Fault Diagnosis
Electronic diagnostics, fault code reading and fast on-site diagnosis to keep your machine's downtime to a minimum.
Report a fault →Engine Overhaul
Cylinder head, piston and liner, crankshaft and injector work. We bring your engine back to factory tolerances.
Get a quote →Hydraulic Systems
Pump, valve block, cylinder seal and hose renewal. Repairs verified with pressure tests.
Get support →Spare Parts
Genuine and aftermarket options, with fast supply of filters, undercarriage parts, bucket teeth, gasket sets and engine parts.
Ask about parts →On-Site Service
Our mobile service team comes to your job site or quarry. Repairs without moving your machine an inch.
Request a team →
Since 2001
A service that grew with Komatsu
2001
Founded
Three partners who had worked on Komatsu construction machinery founded Delta in Ankara.
Workshop
Overhaul center
Engine, transmission, hydraulic pump and control valve overhauls at our main workshop in İvedik.
Today
Service across Türkiye
On-site service for Komatsu and Bomag machines with 20 expert technicians and 8 service vans.
Machines we work on
Every Komatsu series, plus Bomag
From excavators to dump trucks, from dozers to rollers: whatever machine you have on site, we maintain, repair and overhaul it.
Our overhaul workshop
Major components, back to factory specs
Engine overhaul
Teardown, measurement, renewal and testing.
Transmission overhaul
Gear, bearing and clutch assemblies.
Hydraulic pump overhaul
Flow and pressure values.
Hydraulic control valve overhaul
Spools, seals and spring sets.
All overhauls are delivered under warranty.
Our specialty
Two brands. One focus.
BOMAG
Vibration system, engine and hydraulic service for soil and asphalt rollers, compactors and pavers.
Message us about Bomag
How we work
From message to delivery in four steps
- Message us on WhatsAppSend your machine's make, model and problem, or a photo of the part.
- DiagnosisOur specialist confirms the fault or the part number for your model.
- Clear quoteWe give you the price and timing up front. No surprise costs.
- Service & deliveryParts at your door or our team on site. Your machine is back at work.
Machine broken down?
Our service team is ready to roll. Call, message us on WhatsApp or leave a service request and we'll call you back.
Delta İş Makinaları provides professional maintenance, repair and overhaul services for Komatsu construction machinery.
With a team of 20 expert technicians and 8 service vans based at our Ankara headquarters, we provide on-site maintenance and repair for Komatsu construction machinery across our service area.
At our Ankara workshop, our specialist technicians carefully overhaul a range of mechanical and hydraulic systems on Komatsu machines, above all engines, transmissions, hydraulic pumps and hydraulic control valves, and every overhaul comes with a warranty.
With our expert team, well-equipped service infrastructure and customer-focused approach, we help construction machinery run efficiently and reliably.
25years of experience
20expert technicians
8service vans
Our approach
Keeping machines efficient and reliable
Expert team
20 technicians specialized in Komatsu machines, experienced in mechanical, hydraulic and electrical systems.
Well-equipped service infrastructure
Our Ankara headquarters workshop and 8 service vans that go out fully equipped.
Customer-focused service
Fast turnaround and transparent updates to keep your machine at work.
On-site maintenance and repair
Our service vans come to where your machine is working. We carry out periodic maintenance, troubleshooting and part replacement on site and get your machine back to work without moving it.
Workshop services
Comprehensive repairs and component work at our Ankara workshop. Major faults are fixed in a controlled environment with the right equipment and test rigs.
Fault diagnosis
We listen to the symptoms and track down the source of the fault with measurements and tests. An accurate diagnosis prevents unnecessary part replacements and repeat failures.
How we work
From request to handover in four steps
- RequestReach us by phone, WhatsApp or the service request form.
- Initial assessmentThe team and parts are planned from the machine and fault details.
- Maintenance and repairThe work is done on site or in the workshop.
- HandoverThe machine is tested and handed back in working order.
Home / Overhaul Services
Overhaul Services
Engine, transmission, hydraulic pump and hydraulic control valve overhauls, under warranty.
Engine overhaul
The engine is fully dismantled and measured, worn parts are renewed, and it is tested after assembly before handover.
Transmission overhaul
Gear, bearing and clutch assemblies are inspected and out-of-tolerance parts are renewed.
Hydraulic pump overhaul
The pump is overhauled and its flow and pressure values are brought back to factory tolerances.
Hydraulic control valve overhaul
Spools, seals and spring sets are renewed, then leak and function tests are carried out.
Overhauls are carried out by our specialist technicians and delivered under warranty.
Overhaul process
Every component, the same care
- Teardown and measurementWear and damage are measured one by one and reported.
- Part renewalOut-of-tolerance parts are renewed.
- AssemblyThe component is assembled to factory specifications.
- Testing and handoverIt is tested and delivered under warranty.
Home / Mobile Service
Mobile Service
With 8 service vans, we come to wherever your machine is working.
Field service
Keep your machine on the job
Job site, quarry or mine: our service vans head out with expert technicians and equipment.
- Periodic maintenance
- Fault diagnosis and repair
- Part replacement
- Post-service checks and reporting
Service across Türkiye from our Ankara headquarters.
Our service area
All of Türkiye
Tell us where you are and about your machine, and we'll plan our team and van.
- Call or message usSend the machine model, the fault and your location.
- We plan the teamThe right technician and service van are dispatched.
- Field serviceMaintenance and repair are done right at the machine.
Opening hours
Monday–Friday 08:30–18:00Saturday 08:30–13:30