Bungee Cords
Cords composed of rubber or several
elastic strands covered with nylon or
cloth and have metal or plastic hooks
on each end. These are available in
nearly any length to secure light cargo
c
Cargo Carrier
The cargo carrier is a hitch-mounted
platform that typically has up to a 500 lbs.
capacity. Common uses include hauling
coolers, boxes, tools, firewood and
other items unable to fit in the vehicle.
They are usually offered with a short 2"
wall or a higher 6" wall and may include
a tilt feature allowing the carrier to fold
up when not in use
Chassis
The main framework of a vehicle. It
consists of the frame, and only the
essential parts needed for operation.
Vehicle body and other non-essential
parts are not considered part of the
chassis
Class I Trailer Hitch
Trailer hitch with a capacity of up to
2,000 lbs. gross trailer weight and up to
200 lbs. tongue weight. Has an
1 1/4" x 1 1/4" receiver tube opening
Class II Trailer Hitch
Trailer hitch with a capacity of 2,500 to
3,500 lbs. gross trailer weight and 250
to 350 lbs. tongue weight. Has an
1 1/4" x 1 1/4" receiver tube opening
Class III Trailer Hitch
Trailer hitch with a carrying capacity
of 3,500 to 8,000 lbs. gross trailer
weight and 350 to 800 lbs. tongue
weight. When used in conjunction
with a weight distribution system, the
weight ratings increase up to 12,000
lbs. gross trailer weight and up to
1,200 lbs. tongue weight. Has a 2" x 2"
receiver tube opening
Class IV Trailer Hitch
Trailer hitch with a carrying capacity
of up to 10,000 lbs. gross trailer
weight and up to 1,000 lbs. tongue
weight. When used in conjunction with
a weight distribution system, the weight
ratings increase up to 12,000 lbs.
gross trailer weight and up to 1,200 lbs.
tongue weight. Has a 2" x 2" receiver
tube opening
Class V Trailer Hitch
Trailer hitches with a 2 1/2" x 2 1/2"
receiver tube opening have a carrying
capacity of up to 20,000 lbs. gross
trailer weight and up to 2,700 lbs.
tongue weight. Trailer hitches with
a 2" x 2" receiver tube opening have
a maximum gross trailer weight of
17,000 lbs. and a maximum tongue
weight rating of 2,550 lbs. Due to the
already high weight ratings, when
used in conjunction with a weight
distribution system, the weight
ratings do not increase.
Clip
Used to retain the pin in a trailer hitch
Commercial Duty
(
CD
)
Hitch
Trailer hitch with a carrying capacity
of 18,000 lbs. gross trailer weight
and 2,700 lbs. tongue weight. When
used in conjunction with a weight
distribution system, the weight ratings
remain equal to the carrying capacity.
Has a 2 1/2" receiver tube opening
Commercial Duty
+ (
CD
+)
Hitch
Trailer hitch with a carrying capacity
of 20,000 lbs. gross trailer weight
and 2,700 lbs. tongue weight. When
used in conjunction with a weight
distribution system, the weight ratings
remain equal to the carrying capacity.
Has a 2 1/2" receiver tube opening
Computer Numerical
Control
(
CNC
)
The automated control of work piece
or tool motions with input parameters
such as feed, speed and depth of cut.
Commonly used in manufacturing
Connector
Electrical term used to define
components for joining wires
Converter
(
Tail Lights
)
Converts three-wire tow vehicle
electrical systems to two-wire systems,
integrating the stop and turn signal
circuits as is common in trailer wiring
Coupler
The forward most part of a trailer
tongue that envelopes and secures
to the tow vehicle trailer ball
Coupler Height
The distance from the ground to the
bottom of the trailer coupler with the
trailer tongue leveled. The coupler
height and hitch height are used to
determine the drop or rise needed
when selecting a ball mount
Coupler Lock
A pin style lock designed to fit through
the coupler's latching mechanism,
disabling it from latching to or being
removed from the trailer ball, preventing
unwanted use or removal of the trailer
18 • UNDERSTANDING TOWING • curtmfg.com • 1.877.curtmfg