Commercial Vehicle &
Construction Machinery
Electronics
IATF 16949 certified OEM supplier — power distribution, control modules, switches & HUD systems for commercial vehicles and construction machinery.
Four Product Families for Commercial Vehicles & Construction Machinery
From power distribution and BCM to switches, sensors and smart displays — a complete electrical and electronic system stack for OEM programs.
Power Distribution & Fuse Boxes
Central power distribution boxes, fuse boxes and relay boxes for trucks, buses and construction machinery.
Explore
Smart Control Modules
Body, powertrain and telematics control modules — BCM, VCU, T-BOX, domain controllers — on CAN-FD / J1939 / UDS.
Explore
Switches & Sensors
CAN-bus switch panels, TPMS sensors, rain & light sensors, bus stop buttons and buzzers.
Explore
Displays & HUD
HUD, instrument clusters, CAN displays, CMS electronic mirrors and surround-view systems.
ExplorePower Distribution Box Highlights
NBX series — central power distribution boxes, fuse boxes, relay boxes and junction boxes for commercial vehicles, buses and construction machinery.
Engineered for Heavy-Duty Applications
Five commercial-vehicle segments where Youlai supplies OEM electronics. Click any tile to see the typical product mix.
Heavy Truck
Cab electronics and power distribution
Full guide
Construction Machinery
Sealed distribution and hydraulic control
Full guide
Bus & Coach
Passenger-facing controls and displays
Full guide
New Energy Vehicles
HV conversion, control and EV cockpit
Full guide
Agricultural Machinery
Machine bus, implement interface and sealed hardware
Full guideEngineering-Validated for Your Region
OEM electronics matched to the working conditions of your target market — built and validated for the climate, bus systems and documentation your programs run on.
Middle East / GCC
Desert-grade variants — 50–55°C operation, IP65 / IP67 sealing, J1939 / CAN-FD, IATF 16949 documentation.
View regionSoutheast Asia / ASEAN
Tropical-grade variants — 95% RH humidity, IP65 / IP67 sealed and conformal-coated PCBs, low-volume start support for local programs.
View regionOther Regions
Europe, North America, CIS, Africa and South Asia — the same OEM catalogue, matched to your bus protocol, connector standard and voltage domain.
See what we supplyTrusted by Leading OEMs
Named customers Youlai supplies, then where those products go — across China, and exported on complete vehicles.
Read the transcript
After more than a decade of development, Youlai Electronics and its products have grown alongside construction machinery and the new-energy vehicle industry, earning recognition from customers. Customers served include SANY, SUNWARD and BYD, as well as Zotye, Yutong, JAC and other vehicle OEMs. We have built broad and close working relationships. Products are supplied across China and exported with complete vehicles. Looking ahead, we remain committed to creating value for customers, and growing together with them. With focus and dedication, we pursue quality at every step. We welcome partners worldwide who share that commitment, to build a better future together.
- SANY
- XCMG
- ZOOMLION
- SUNWARD
- SINOTRUK
- SHACMAN
- DAYUN
- LIUGONG
- BYD
- YUTONG
- CHANGAN
- CRRC
Logos are trademarks of their respective owners.
Learn About YoulaiEngineering-First Manufacturing
What sits behind every shipment — production lines, in-house labs, full protocol stack and IATF documentation.
Production Lines
3 SMT auto lines, 1 THT auto-flow line, 4 standard assembly lines.
Environmental Lab + EMC pre-compliance
Temperature, humidity, salt spray, vibration, dust, ESD, surge testing.
Communication Protocols
CAN 2.0 / CAN-FD / LIN / SAE J1939 / ISO 14229 UDS / ISO 15765.
Automotive Electronics
IATF 16949 certified manufacturing, with ISO 14001 & ISO 45001 management systems.
Engineering Insights for Commercial-Vehicle Programs
Practical buyer guides for commercial-vehicle and machinery electronics — from power distribution and control modules to switches, sensors and displays.
How do I choose a fuse box for trucks and machinery?
Which published circuit step to land on, the fuse format on each rail, and the housing-plus-gauge mix — the decisions that get frozen into the drawing.
Read guideRelay box, fuse box or junction box — which one?
Architecture comparison, decision tree and OEM use cases. When to consolidate, when to split, and how the BCM changes the answer.
Read guideWhat does a heavy-truck BCM actually control?
The functions a body control module owns, where it sits on the CAN / J1939 bus, and how to write a BCM spec a supplier can build to.
Read guideWhat does a VCU do on an electric truck?
Torque coordination, regeneration and HV sequencing — how the VCU differs from the BCM and PMU, and how to write a VCU specification.
Read guideWhy move dash switches onto the CAN bus?
When a CAN switch panel beats hard-wired switches, the CAN vs LIN vs hard-wire trade-off, and how to specify one for a cab.
Read guideDoes a commercial vehicle really need a HUD?
Windshield vs combiner HUD, where the data comes from over CAN, and when a head-up display earns its place in a truck or bus cab.
Read guideQuick Answers for OEM Buyers
Common questions before you send an RFQ. For project-specific details, talk to our team.
Are you a manufacturer or a trader?
We are a manufacturer in Changsha, China. Our team designs, builds and tests the electronics in-house under an IATF 16949 quality system.
Can you customize for our vehicle (OEM / ODM)?
Yes. Most programmes start from a published platform — circuit count, connectors, CAN / J1939, IP rating and housing. Where none fits, we take ODM design responsibility for a new part from your requirement.
How do I get a quote?
Reach out by email or WhatsApp. Sales takes the first reply and loops engineering in when the programme needs it, to check whether an existing platform fits or a custom build is the better route, then comes back with a quotation or the next technical questions.
Talk to Our OEM Project Team
Typical reply within one business day. Send drawings or specifications via WhatsApp or email.