Who we are
The authorized ZF and Voith service partner for Bulgaria. We repair gearboxes, supply OEM parts, and keep commercial fleets running — trained at the source, in Germany.
Built on one idea: do it right.
iParts started in 2007 with a straightforward mission: help fleet operators keep their vehicles on the road. Not patched. Not "good enough". Fixed properly.
We focused on gearboxes and transmissions for commercial vehicles — the components that cause the most downtime when they fail and are the hardest to get right. We built relationships directly with ZF and Voith, got authorized, and trained at their factories in Germany.
Today we are the only authorized ZF and Voith service point in Bulgaria. Our technicians are certified for systems that most workshops won't touch — including high-voltage electric drives (VEDS) and HV Level 2S components on hybrid and electric commercial vehicles.
17 years, one focus
Founded
iParts launches as a specialist gearbox repair and parts supplier for commercial fleets in Bulgaria.
ZF Authorization
Become an official ZF Service Partner — one of the first in Bulgaria — with access to factory tools, procedures, and technical support.
ISO 9001
Quality management system certified to ISO 9001 — every repair and delivery follows documented, audited procedures.
Voith Certification
Certified for Voith DIWA automatic transmissions after hands-on training at Voith headquarters in Heidenheim, Germany.
ISO 14001
Environmental management system certified — responsible handling of oils, fluids, and components.
HV & VEDS Certification
Certified for Voith VEDS electric drives and HV Level 2S — enabling service on hybrid and fully electric commercial vehicles.
Authorized, not just familiar
Authorization means access to factory procedures, factory diagnostic tools, factory technical support, and factory training — not just the parts catalog.
ZF Service
Authorized ZF Service Partner
ZF authorization gives us access to the full service network: factory repair procedures, genuine parts sourced directly from ZF factories in Germany, and the same technical training as ZF's own certified workshops worldwide.
- ZF TraXon, AS Tronic, EcoLife, Ecosplit gearboxes
- ZF steering and chassis components
- ZF Testman factory diagnostic software
- Direct parts ordering from ZF logistics
- Technical support from ZF engineering
Voith / Driventic Service
Certified Voith Service Partner
Voith certification covers their full automatic transmission line and electric drive systems. Our technicians trained directly at Voith's headquarters in Heidenheim, Germany — learning from the engineers who designed the systems.
- Voith DIWA NXT automatic transmissions (city buses)
- Voith VEDS electric drive systems
- Voith retarder and hydrodynamic drives
- DIWA NXT disassembly, diagnostics, oil/control circuits
- HV Level 2S — high-voltage component service
Trained where the systems are built
Our technicians don't learn from manuals alone. They train at ZF and Voith facilities in Germany — the same factories that design and manufacture the systems they service.
Voith DIWA NXT — Automatic Transmissions
Factory-level certification for Voith DIWA automatic transmissions used in city buses worldwide.
- Full disassembly and assembly procedures
- Component-level diagnostics
- Oil circuit and control system service
- Post-repair measurement and testing
- Full repair documentation
Voith VEDS — Electric Drive Systems
Hands-on certification for Voith electric drive systems — covering safety, diagnostics, and service on high-voltage components.
- Electrical safety procedures and protective measures
- High-voltage component protocols
- VEDS diagnostic system operation
- Pre-commissioning checks after service
HV Level 2S — High Voltage
Safety-critical qualification for high-voltage work on commercial electric and hybrid vehicles.
- HV safety regulations and risk management
- Live and isolated measurement procedures
- Practical HV service operations
- Incident response protocols
Our Certifications
Official certificates confirming our quality standards, environmental management, and manufacturer authorizations.
See Our Work
Watch real gearbox repairs from our workshop floor. No actors, no staging — this is what we do every day.
Need a repair, a part, or a consultation?
Our team responds fast. Tell us what you need — we'll handle the rest.
Contact Us