Catalog | Electrical Components | Powercoils

Selecting the right Powercoil - TMC RP107C provides the user with guidelines regarding the selection of electrical hookup lines. 

Working Length

The industry guideline for selecting the correct working length is as follows: Measure the distance between the tractor and trailer hookup points at the point of greatest extension during a full right turn articulation. Note that in the case of lines that are suspended off the deck by a clamp, the point at which the cable is clamped (rather than the tractor receptacle), should be considered the tractor connection point for purposes of this measurement.

Measurement between tractor & trailer hookup points: 
Less than 8 ft. - Recommended Working Length: 12 ft.
Between 8-10 ft. - Recommended Working Length: 15 ft.
More than 10 ft. - Recommended Working Length: 20 ft.
Note: If a short tractor lead is being used OR if a long tractor lead is being clamped directly to the cab, it is wise to select the next working length up from what is recommended. Utilizing a tender spring or pogo stick offers a greater lateral & rearward movement of the lines, enabling their full working length to extend during turns. 

Tractor Lead Length

Most new tractors have less than an 18” distance between the tractor electrical receptacle and the deck. This makes hookups more accessible to the user but requires that the lines have a longer lead and some method of suspension to protect them from abrasion.

The rule of thumb is to use a longer lead length if the hookup distance is less than 18” from the deck. In addition to standard lengths of 12”, Tectran offers options of 24", 48” or 72”.

For proper suspension of the longer tractor leads, consult our General Section for a wide range of pogo sticks, tender kits and slider bars.


21600 21700 21720 21800 21900
22000 22200 22220 22300 22400
22500 22600 22700 22800 22900

Complete the fields below to send friends a link to this product page. You may add a personalized message before sending it.

You will receive a copy of the email once your message is sent.

Receive Tectran email newsletter