Industry Focus
Deutsch HD series and DT connectors engineered for the harsh under-hood and chassis environments of truck, bus and commercial vehicle platforms.
Truck, bus and commercial vehicle OEMs need connectors that survive the harshest on-road environments — extreme heat, road spray, vibration and chemical exposure.
LJR is a Deutsch connector specialist serving the commercial vehicle market. Our Deutsch HD, HD10, HD30 and HDP series connectors are designed specifically for heavy-duty vehicle applications — under-hood, chassis-mounted and exterior positions where standard connectors would fail. We also supply the full range of DT and DTP series for lighter-duty vehicle electrical systems.
With same-day shipping from Ohio stock and deep product knowledge across the Deutsch range, LJR supports both OEM new-build programmes and aftermarket fleet maintenance operations across North America.
Deutsch HD series connectors withstand sustained under-hood temperatures, with silicone seals rated for continuous high-temperature operation.
Positive-lock contact retention and wedgelock systems maintain reliable connections under the continuous vibration of heavy commercial vehicles.
IP67/IP69K-rated environmental sealing protects against road spray, pressure washing and water submersion in chassis-mounted locations.
Shielded connector variants and braided screening support EMC compliance in modern electronic vehicle control systems.
Products We Supply
HD, HD10, HD30, HDP, DT, DTP and DTM series environmental connectors for heavy-duty vehicle applications.
Explore →Deutsch contacts, removal tools and hand crimp tools for vehicle harness assembly and field service.
Explore →Wedgelocks, sealing plugs, boots and hardware for completing commercial vehicle connector assemblies.
Explore →How We Work With You
Our team reviews your requirements and recommends the right connector, contact and accessory combination for your application.
Competitive pricing with quick turnaround on quotes — we aim to respond the same business day.
Orders placed before cut-off ship the same day from our Ohio warehouse — keeping your production line moving.
Dedicated account support with repeat-order capability and call-off arrangements for regular requirements.