Heavy-Duty Wire Harness
Rugged cable assemblies engineered for the most demanding applications. Heavy-duty harnesses for construction, mining, agriculture, and industrial equipment.
Heavy-Duty Applications
Rugged cable solutions for demanding environments.
Construction Equipment
Excavators, loaders, and heavy machinery harnesses
Mining Operations
Underground and surface mining equipment cables
Agricultural Machinery
Tractors, harvesters, and farm implement wiring
Commercial Trucks
Heavy truck chassis and trailer harnesses
Marine Applications
Shipboard and offshore equipment cables
Industrial Machinery
Factory floor equipment and heavy manufacturing
Heavy-Duty Features
Key capabilities for demanding applications.
Abrasion Resistance
Heavy-wall insulation and protective sleeving for harsh environments
Vibration Resistance
Strain relief and secure mounting for high-vibration equipment
Environmental Sealing
IP67/IP68 sealed connectors for dust and water protection
Chemical Resistance
Materials resistant to oils, fuels, hydraulic fluids, and solvents
Heavy-Duty Specifications
Off-Highway Experts
We understand the unique demands of construction, mining, and agricultural equipment. Our heavy-duty harnesses are designed to survive harsh environments while providing reliable electrical performance.
- SAE J1939 compliant
- Deutsch & Amphenol connectors
- Full environmental sealing
- Comprehensive testing
Professional Heavy-Duty Wire Harness Manufacturing
OurPCB manufactures heavy-duty wire harnesses for the most demanding applications in construction, mining, agriculture, and industrial equipment. Our rugged cable assemblies feature large-gauge conductors, abrasion-resistant materials, and sealed connectors for reliable operation in harsh environments.
For construction equipment and mining operations, we provide waterproof harnesses with IP67/IP68 protection. Our cables resist abrasion, vibration, and exposure to oils, fuels, and hydraulic fluids.
We use premium connectors from Deutsch, Amphenol, and other industrial manufacturers designed for off-highway applications. Combined with our high-temperature materials, we deliver harnesses that survive engine bay and equipment-mounted installations.
Our replacement harness service provides equivalent or upgraded replacements for worn or damaged equipment cables. From rapid prototyping to production, we support heavy-duty applications across industries.
From the Case Bank
A European heavy-duty truck program required quoting for a long-lifecycle wire harness with grommets.
The initial RFQ contained drawing quality issues, forcing the customer to cancel the first quote and re-issue the RFQ with updated specifications, which compressed the quoting timeline and required rapid engineering re-evaluation.
Quickly adapted to the re-issued RFQ, re-evaluating the bill of materials and manufacturing process based on the corrected technical data package to ensure accurate costing for the long-term program.
Successfully re-quoted the project with accurate technical data, aligning with the customer's extended production timeline.
- SOP 2029
- EOP 2035
- 6-year production lifecycle
- 1 re-issued RFQ due to drawing errors
Heavy-Duty Harness FAQ
Heavy-duty harnesses feature larger wire gauges for higher current capacity, thicker insulation for abrasion resistance, sealed connectors for environmental protection, and robust mounting provisions for high-vibration environments. They're designed for the demanding conditions of construction, mining, and industrial equipment.
We use industrial-grade connectors from manufacturers like Deutsch, Amphenol, TE Connectivity, and Anderson. These feature sealed housings, high-current contacts, and rugged construction designed for off-highway and industrial environments.
Yes, we design harnesses specifically for high-vibration environments. Features include proper strain relief, secure cable routing, vibration-resistant connectors, and appropriate cable support. We can also provide vibration testing for critical applications.
Yes, we can reverse-engineer and manufacture replacement harnesses for existing equipment. Provide us with the original harness or documentation and we'll create an equivalent or improved replacement.
Need Heavy-Duty Cable Assemblies?
From construction equipment to mining operations, we manufacture rugged harnesses for the toughest environments.