150+ active models across four product families: power distribution, control modules, switches & sensors, and displays & HUD — built under one IATF 16949 quality system for heavy trucks, excavators, buses, agricultural and new-energy platforms.
The Youlai catalogue is organised into four product families for modern commercial vehicles: power distribution, control modules, switches & sensors, and displays & HUD. Each family is backed by in-house engineering, automated assembly and a shared environmental and EMC test lab.
Power Distribution & Fuse Boxes is the largest family in the range, with 24+ NBX models in production. OEM buyers can also use the dedicated manufacturer page for China sourcing and custom quotations.

Central power distribution boxes, fuse boxes, relay boxes, junction boxes, sealed enclosures (IP67) and earth bonding plates for trucks, buses and construction machinery.
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Body, powertrain and telematics control modules — BCM, VCU, T-BOX and domain controllers — built around CAN-FD, J1939 and UDS for modern vehicle electronics.
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CAN-bus switch panels, TPMS sensors, rain & light sensors, bus stop buttons, buzzers, horns and fuel level senders.
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Commercial-vehicle HUD, instrument clusters, CAN displays, CMS electronic mirrors, surround-view systems for smart cockpits.
ExploreSix representative products spanning all four product families. Power Distribution remains our most extensive line, with 24+ NBX models in production today.
OEM-grade quality system from APQP through PPAP, with the documentation pack on programme handoff. Read more
Pre-compliance screening on site; formal EMC compliance at third-party accredited labs. Read more
Sealed enclosure and connector design rated against dust, water and salt-spray ingress. Read more
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