Trailer Glossary
Does trailer terminology have you confused? No problem! The Trailer Technician Trailer Glossary provides the definitions of commonly used terminology from the truck and semi-trailer industry.
Glossary
#
A
- A-Train
- Actuator
- Aero Skirts
- Air Bag
- Air Brake
- Air Dryer
- Air Tank
- Annual Inspection
- Anti-Lock Braking System (ABS)
- Apitong
- Axle
B
- B-Train
- Blink Codes
- Bobtail
- Bogie
- Bolster Plate
- Bolster Plate Height
- Brake Actuator
- Brake Chamber
- Brake Drag
- Brake Fade
- Brake Force
- Brake Monitoring System (BMS)
- Brake Stroke
- Bridge Formula
- Brinell Hardness
- Bulkhead
C
- C-Train
- Camber
- Center-of-Gravity
- Chassis, Container
- Class 6 Truck
- Class 7 Truck
- Class 8 Truck
- Clearance Lights
- Clevis
- Commercial Driver’s License (CDL)
- Commercial Motor Vehicles (CMVs)
- Commercial Vehicle Safety Alliance (CVSA)
- Commercial Vehicle Safety Plan (CVSP)
- Commercial Trailer
- Compliance, Safety, Accountability Program (CSA)
- Conestoga
- Connector, Bullet
- Connector, Butt
- Conspicuity Tape (DOT Tape, Reflective Tape)
- Container
- Continuity Tester
- Crossmember
- Curbside
- Cushion Foot
D
- Department of Transportation (DOT)
- Diagnostic Trouble Code (DTC)
- Dock Lock
- Dolly
- Door Hold Back
- Door Seal
- Door, Overhead
- Door, Swing
- Doubles
- Doubles, Rocky Mountain
- Doubles, Turnpike
- Driver Vehicle Inspection Report (DVIR)
- Drop and Hook
- Drop Deck Trailer
- Dry Van Trailer
E
- Electronic Braking Systems (EBS)
- Electronic Control Unit (ECU)
- Extendable Double Drop Trailer
- Extendable Flatbed Trailer
F
- Federal Motor Carrier Safety Administration (FMCSA)
- Federal Motor Vehicle Safety Standards (FMVSS)
- Fiberglass Reinforced Composite (FRC)
- Fiberglass Reinforced Plastics (FRP)
- Fifth Wheel
- Fifth Wheel Height
- Fifth Wheel Top Plate
- Fixed Tandem
- Flaps
- Flash Code
- Flat Rate
- Flatbed Trailer
- Float Trailer
- Floor, Composite
- Floor, Laminated
- Floor, Shiplap
- Floor, Tongue & Groove
- Foundation Brake
G
- Galvanized
- Gladhand
- Gooseneck Trailer
- Gross Axle Weight Rating (GAWR)
- Gross Combination Weight (GCW)
- Gross Vehicle Weight (GVW)
- Gross Vehicle Weight Rating (GVWR)
- Ground Bearing
H
- Harness, Wiring
- Hours of Service (HOS)
- Hubodometer
I
- ICC Bumper
J
- Jackknife
- Johnson Bar
K
- Kingpin
- Kingpin Lock
- Kingpin Plate
L
- Landing Gear
- Lash Ring
- Lift Axle
- Lift Gate
- Load Concentration
- Load Locks
- Long Stroke
- Lowboy Trailer
M
N
- Non-Ground Bearing
- Nose Cone
O
- Off-Road
- On-Road
- Out of Service (OOS)
- Outrigger
- Original Equipment Manufacturer (OEM)
P
- Piggyback
- Pigtail
- Pintle Hook
- Placard
- Platooning
- Pounds Per Square Inch (PSI)
Q
R
- Rear Impact Guard (RIG)
- Red Tag
- Refrigerated Trailer (Reefer)
- Removable Gooseneck Trailer (RNG)
- Ride Height
- Rigid Fifth Wheel
- RoadRailer Trailer
- Roadside
- Roll Axis
- Roll Center
- Rub Rail
S
- SAE J560
- Safety Measurement System (SMS)
- Sand Shoe
- Scuff Liner
- Semi-Trailer
- Short Stroke
- Side Rail
- Side Skirts
- Sidekit Trailer
- Slack Adjuster
- Slide Travel
- Sliding Fifth Wheel
- Sliding Tandem
- Smart Trailer
- Specialty Trailer
- Spindle
- Spread Axle
- Stationary Fifth Wheel
- Step Deck Trailer
- Stretch RGN Trailer
- Stretch Single Drop Deck Trailer
- Super Single
- Suspension
- Suspension, Air Ride
- Suspension, Leaf Spring
T
- Tandem
- Tare Weight
- Tautliner
- Telematics
- Terminal Tractor
- Thermal Event
- Tire Pressure Monitoring System (TPMS)
- Tone Ring
- Towed Vehicle Weight (TVW)
- Tractor
- Trailer Technician
- Tread Depth
- Tri-axle
- Triples
U
- United States Department of Transportation (USDOT)
- Upper Coupler
V
- Van Trailer
- Vehicle Identification Number (VIN)
- Vehicle Maintenance Reporting Standards (VMRS)
- VIN Tag
- Vertical Load Capacity
W
- Wheel Base
- Wheel End
- Wheel Speed Sensor
- Wheel Torque
X
Y
- Yard Check
- Yard Jockey
- Yard Management System (YMS)
- Yard Tractor
- Yoke
Z