- Batteries
- Battery Boxes
- Battery Charging Equipment
- Battery Monitors
- Calibration & Test Equipment
- Cases & Houses
- Circuit Controllers
- Converters (AC-DC)
- Converters (DC-AC)
- Converters (DC-DC)
- Electrical Connectors
- Fiber Optics
- Grounding Connections
- Inverters
- Junction Boxes
- Lightning Arresters
- Lightning Protection
- Lights
- Lights (LED)
- Power Supplies
- Power System - AC&DC
- Power Systems (Uninterruptible)
- Protective Coating
- Rectifiers (AC-DC Track Circuit)
- Rectifiers (Battery Charging)
- Security Systems, Access Control
- Signal Accessories
- Signs
- Surge Protection
- Switch Heaters
- Test Equipment (C&S)
- Wire & Cable
- Battery Recycling
- Computer Software
- Construction Management & Inspection
- Consulting Services
- Contracting Services (C&S)
- Custom Fabrication
- Education & Training
- Engineering Analysis (C&S)
- Engineering Services
- Highway Crossing Engineering Design
- Maintenance Services
- Project Management
- Repair Service (Signal & Control Equipment)
- Signal Design
- Signal Engineering
- System Integration
- Systems Design
- Test Services
- Auxiliary Remanufacture
- Castings
- Cleaning Equipment & Services
- Electrical Cabinet Rewiring
- Engineering, Testing Services & Equipment
- Fuel Management
- Locomotive & Railcar Brokers
- Locomotive & Railcar Maintenance Services and Repairs
- Locomotive Overhaul Services
- Precision Machining & Fabrication
- Rail Bearing Service
- Software, Computer Diagnostic/Billing
- Truck/Combo Remanufacture
- Wheel-Set Shop Services
- Aftercoolers
- Air Brake Systems
- Air Compressors
- Air Conditioning
- Air Dryers
- Armature Coils & Windings
- Batteries & Battery Systems
- Bearings, New and Reconditioned
- Bolts, Car
- Brake Components
- Brushes, Carbon
- Bushings
- Cab Heaters
- Cab Refrigerators
- Camshafts
- Carbody Components
- Circuit Boards
- Commutators
- Connecting Rods
- Control Equipment
- Controllers (Cam)
- Converters/Inverters
- Couplers, Coupler Assemblies, Draft Gear, Cushioning Devices
- Cranes
- Crankshafts
- Cylinder Heads
- Diesel Engines
- Diesel Injectors
- Diesel Parts
- Ditch Lights
- Doors/Door Latches
- Electrical Power Converters/Inverters
- Electronic Components (Communications, Locomotive Controls, ECP Brakes)
- Environmental Equipment
- Filters
- Gauges
- Gear Reprofiling
- Generator Sets
- Hand Brakes
- Hatch Covers
- Heat Exchangers/Intercoolers
- Hopper Gate Assemblies & Controls
- Hose Assemblies/Glandhands
- Jacks
- Lamps/Lights/Indicators
- Liners
- Locking Fasteners & Devices
- Locomotive Controls
- Lubricants & Friction Modifers
- Lubricators, On-board
- Oil Coolers
- Paints/Coatings/Finishes
- Pistons
- Radiators
- Safety Graphics/Decals
- Safety Grating
- Sanders
- Seats
- Sensors
- Shock Absorbers
- Shop Equipment
- Stator Motors
- Toilets
- Tools, Wrenches, Sockets
- Traction Motors
- Trucks and Components (Springs, Bolsters, Side Frames)
- Turbines
- Turbochargers, Remanufactured
- Valves
- Wear Plates
- Welding Equipment
- Wheels/Axles/Wheel Sets
- Winches
- Windows/Glazing
