bing tracking image
  1. Custom Fit Vehicle Wiring
  2. TorkLift
  3. 7 Blade
  4. Universal Fit
  5. Wiring Extensions
  6. Plug and Lead
TorkLift Wiring Harness Extension for 42" SuperTruss or Cannon Hitch Extender - 7-Way RV
etrailer Installation
We'll connect you with nearby partnered installers who know this exact setup.
TorkLift

TorkLift Wiring Harness Extension for 42" SuperTruss or Cannon Hitch Extender - 7-Way RV

In Stock
$130.90
Retail:$140.36
You Save: $9.46
Custom Fit Vehicle Wiring
zoom in icon
slider vertical icon
zoom out icon
Comment field cannot be left empty.
Name field cannot be left empty.
By submitting this form, you understand and agree to our Terms of Sale, Website Terms of Use and Privacy Policy.

Thank you! Your comment has been submitted successfully. You should be able to view your question/comment here within a few days.

Error submitting comment. Please try again momentarily.

Product Images

etrailer Installation
We'll connect you with nearby partnered installers who know this exact setup.
Designed for use with your 42" long SuperTruss or Cannon receiver extension, one end of this no-splice wiring harness plugs into your truck's 7-way blade trailer connector. The other end runs back 48" to clear your bed-mounted camper. 1-800-940-8924 to order TorkLift custom fit vehicle wiring part number TLW6042 or order online at etrailer.com. Free expert support on all TorkLift products. Great prices and Fastest Shipping for TorkLift Wiring Harness Extension for 42" SuperTruss or Cannon Hitch Extender - 7-Way RV. Custom Fit Vehicle Wiring reviews from real customers.
  • All Info
  • Reviews (40)
  • Q & A (0)
  • Videos (2)
  • Photos

TorkLift Custom Fit Vehicle Wiring

Highlights

  • Extend Trailer Wiring: 4-ft harness gives extra reach for hitches or truck bed campers.
  • Plug-and-Play Setup: 7-way ends connect directly, no splicing or rewiring needed.
  • Secure Connection: Male-to-female 7-blade design keeps trailer lights and brakes powered.
  • Works With SuperTruss or Cannon: Sized for 42" extensions to match your hitch setup.
  • Mount-Ready Design: Can be fixed to extender using mounting bracket #PK12711U.
Made in USA

Features to know about

Adds Reach for Extended Hitches: 48" 7-Way Harness Extension

When your hitch extender or camper setup pushes the trailer connection too far back, this harness bridges the gap cleanly. The TorkLift Wiring Harness Extension for 42" SuperTruss or Cannon Hitch Extender measures exactly 48 inches from end to end, including the connectors. It gives you the extra length needed to reach your trailer’s plug without adding strain or awkward wire routing.

Keeps Power Flowing Through All Trailer Functions: 7-Blade Connectors

With a 7-way male connector on one end and a 7-way female port on the other, this extension carries all your lighting, brake, and auxiliary power signals through without interruption. It’s built to handle full-function RV or boat trailer connections so everything works just like it’s plugged directly into the vehicle.

Simple Plug-In Setup: No Cutting or Splicing

This extension installs in seconds—just plug it into your existing 7-way socket and connect your trailer’s plug to the other end. There’s no need for wiring changes or adapters, making it an easy upgrade when adding a hitch extender or towing with a truck bed camper.

Secures Cleanly to the Hitch: Optional Mounting Bracket

You can use a mounting bracket like part # PK12711U to fasten the female connector right to your extender for a solid, factory-style connection point. It keeps the wiring tidy and protected while you’re towing.

Specs

Dimensions

  • Total length: 48 inches (end to end including connectors)
  • Usable length: 42 inches (for 42" SuperTruss or Cannon Hitch Extender)

Compatibility

  • Fits: TorkLift 42" SuperTruss or Cannon Hitch Extender
  • Connector type: 7-Way RV (7-Blade)
  • Connection type: Male 7-Way plug to female 7-Way socket

W6042 Tork Lift 2-Way Wiring for 42" Super Truss or Cannon Extension - 7-Pole Blade-Style Trailer Connector - 48" Long

Item # TLW6042





Video of TorkLift Wiring Harness Extension for 42" SuperTruss or Cannon Hitch Extender - 7-Way RV
Video Thumbnail Video Player Dialog

Videos are provided as a guide only. Refer to manufacturer installation instructions and specs for complete information.




Video Transcript for In-Depth Review of the TorkLift Wiring Harness Extension for 21" SuperTruss Hitch Extender

Today we're going to be taking a look at the Torque lift line of wiring harness extensions for use with the super truck hitch extenders. These are available in several different lengths. Just depending on how long that hitch extender that you're using is going to be. This is Torque's Lifts 36" extension that matches their 36" super stress. If you're going with the longer super truss, get the longer. If you're going with the shorter, get the shorter. Really a nice option to where you can plug it right into the back of your vehicle, bring your power down to where it's right here, readily available and accessible for you to get to. What we're going to do is take our, what looks like a trailer plug end, we're going to pass it through our bracket.

It's just flexible enough we can kind of bend that bracket so allow it to come through. Then here's what we want, that's our 7 pole connector. We're going to be bale to hook our trailer up right here. We've got the nice safety chain connections there an then also our wiring connection. Slide that in.

We're pass our screw through the face there and then just put our nuts on the back. Now, the hardware's not provided so you'll need some hardware to pass through there. You can see our bracket's kind of got the oblong holes to make it to where it'll fit a lot of different style harnesses. I'm going to put a flat washer on to give our nut a good surface to bite to when we tighten it down. Now we can go ahead and tighten those down as well. At that point, we're mounted on, got a nice secure connection point.

We can basically just plug this right into the back of our truck. You don't want this to be hanging down underneath our hitch where it might drag or something like that. That will complete today's look at the Torque Lift wiring harness extensions for the super truck hitch extender.

Customer Satisfaction Score:

Ratings & Reviews

4.9

40 reviews
Review sort icon
Designed for use with your 42" long SuperTruss or Cannon receiver extension, one end of this no-splice wiring harness plugs into your truck's 7-way blade trailer connector. The other end runs back 48" to clear your bed-mounted camper.

by:



by:



by:



by:



by:

Top quality!!!



by:



by:

Exactly what I needed.



by:

Worked out great



by:

Excellent Service



by:

Quality product and great service, quick delivery



by:

Assembled very well



by:

Works perfectly. Thank you.



by:

Just the right length no messing around with any wiring or anything else.



by:

Would have been 5 star if bolts had been included



by:

Pretty straight-forward, well made, and does what it's supposed to do.



by:

Fast delivery and easy ordering.



by:

Delivered in good shape fast turn around. Ordered Monday Delivered Wednesday on all 4 products. Unfortunately 2 of the heavy boxes were damaged. Parts missing on 1 item.



by:

Just what I needed for a trailer with short plug



by:

WORKED AS DESCRIBED, FAST SHIPPING



by:

Everything from ordering and receiving this was wonderful, I have ordered from e trailer on the past and they haven’t disappointed me yet..



by:

Harness is useless without the hitch that was ordered but never delivered. We will not use etrailer in the future.



by:

No review yet since I have not seen the hitch; it was delivered to my brother's house in SC and I am in Alaska. But I am headed down that way over the weekend to install the hitch on my truck down there. If you really want a star rating though, I would give the service from etrailer a 5 star. Shipping was quicker than expected.



by:

Works great. ON gripe is the self drilling tappers provided. I assumed they are for securing the socket at the hitch. Pretty wimpy and would definitely not work with the hitch extension. Replace with 1/4-20 SS screws for a better, more secure and rust free mount.



by:

The Torklift Wiring Harness Extention shipped quick and good condition. I plan to use it for a slide in truck camper. It will be used to extend the electrical from the camper to truck and give me another location to disconnect it from truck when the loaded hitch hauler is on. The truck does not have a isolator for the battery so I will use the manual disconnect and mount it in a easier to reach location.



by:

THE TORKLIFT WIRING HARNESS IS A TIME SAVER, I NO LONGER HAVE TO REACH OVER MY FENDER TO HOOK UP MY 5TH WHEEL CAMPER, I NOW CONNECT MY CAMPER WIRING HARNESS AT THE TAILGATE.
THE MAXXAIR II COVER WILL NOW ALLOW ME TO LEAVE MY VENT COVER OPEN AT ALL TIMES. BE ABLE TO GET AIR INTO OUR CAMPER EVEN WHILE I'M DRIVING IT. THE FRESHER AIR WILL ALLOW US TO SLEEP EASIER THAN TO GET INTO A HOT CAMPER AFTER A LONG DAY IN THE SUN.

Arden M. profile picture

Arden M.

4/16/2015

Best buy ever. Now I have a safe reasonable connection, without stretching


25
25

See what our Experts say about this TorkLift Custom Fit Vehicle Wiring

  • Adapter from Truck with 7-Blade to Camper with 7-Round Connectors
    An extension is going to be male on one side and female on the other. We have a 4 foot extension, part # TLW6042, that's a 7-way on each end. We don't carry an 8 foot long extension but we do have a 10 foot, part # TLW6510, that should work for you.
    view full answer...
    Image 1 for
  • Extension for 2026 Ram 5500 With Truck Bed Camper Towing Boat
    Hey Jeff! The TorkLift SuperTruss Hitch Extension like # TLE1542 is only designed to work with the TorkLift SuperHitch Magnum Trailer Hitch Receiver # TL49YR. You won't be able to use it with your existing 2-1/2" receiver on the flatbed. What you can use instead is the Titan Hitch Box Extension for 2-1/2" Trailer Hitches # RP45018. You will cut it down to the 41" length which will give you a max gross trailer weight of 5,000 lbs. You can also use the TorkLift Wiring Harness Extension...
    view full answer...
  • TorkLift Hitch, Extension, and Tie Downs for 1996 Ford F-350
    Hey Josh! I can definitely help you get what you need. The hitch is the easy part, you'll need the TorkLift SuperHitch # TLF1000. This will fit your F-350 as long as you have the standard or step bumper. It is rated for 17,000 lbs so as long as your truck is able to tow it, the hitch can handle it. Then for the frame mounted tie-downs, if you have no running boards or cab length running boards you need the TorkLift Tie Downs # TL96DR. If you have wheel to wheel running boards use # TL37NR...
    view full answer...
  • Are The Lengths of the TorkLift Cannon Extensions The Overall Length or the Extension Length
    The TorkLift Hitch Extensions are going to be measured for the extension from hitch pin hole to hitch pin hole. So for the Cannon series which fits a Ford 3" receiver we have the following sizes. 21" # TL46CR 24" # TL66CR 36" # TLE1636 42" # TLE1642 48" # TLE1648 We do also have the Wiring Harnesses needed for the above extensions. 21" # TLW6021 24" # TLW6024 36" # TLW6036 42" # TLW6042 48" # TLW6048
    view full answer...
  • What Torklift SuperHitch and Extension do I Need for My 2008 Dodge Dually 3500 Super Cab?
    Hello Mark, Sounds like quite the sweet set-up you are getting together! For your 2008 Dodge Dually 3500 with super cab you will need one of the following (I like to assume everyone has a hitch on their truck, but you never know): - WITH hitch # TLD1102-30 - WITHOUT hitch # TLD1101 For the extension you will want the TorkLift SuperTruss Hitch Extension for SuperHitch Trailer Hitch Receivers - 42" Long # TLE1542. Most people need the 42" to accomplish what you are doing, if you happen...
    view full answer...
  • Availability of 42" Hitch Extension for 2026 Silverado 3500
    Hey Jeffrey! The longest hitch extension for the 2-1/2" receiver on your Silverado is the Curt Hitch Extension and Reducer for 2-1/2" Trailer Hitches - 24" to 34" Long # C45048. If your ball mount is at least 8" long from the hitch pin hole to the center of the ball that will give you the 42" extension you're looking for. If you were already accounting for the ball mount there may be an extended ball mount that could push it out far enough for the clearance you need. The other option...
    view full answer...
  • Recommended TorkLift SuperHitch Magnum Trailer Hitch for a 2024 Chevrolet Silverado 3500
    For your 2024 Chevrolet Silverado 3500, I recommend the TorkLift SuperHitch Magnum Trailer Hitch item # TL74FR over the small one because of it's expanded capabilities and the extra capacity. Go big or go home with a 3500 dually! You will be able to use the longer extensions like the two listed below you mentioned in your prior questions. TorkLift SuperTruss Hitch Extension 32" Long item # TLE1532 - 7-Way RV item # TLW6032 TorkLift SuperTruss Hitch Extension 42" Long item # TLE1542 -...
    view full answer...
  • Hitch Setup for 2002 Chevy Silverado 2500 With 2001 StarCraft 953 Towing Boat Trailer
    Hey Mark, welcome back! Are you wanting to use the TorkLift SuperHitch Magnum # TLC1205-30 you were looking at? If you need a long extension this is going to be the best option for that kind of setup. You will also need to measure to see what kind of clearance you need and choose the right extension. We have the following available for the SuperHitch Magnum: -TorkLift SuperTruss Hitch Extension - 21" Long # TLE1521 (wiring extension # TLW6021) -TorkLift SuperTruss Hitch Extension - 24"...
    view full answer...
  • Will Reese Hitch Box Extension and Reducer for Titan 2-1/2" Trailer Hitches Fit 2021 GMC Sierra 3500
    Hey Scott! Yes, the Hitch Box Extension and Reducer for Titan 2-1/2" Trailer Hitches # RP45292 will fit the factory 2-1/2" receiver on your 2021 GMC Sierra 3500. You may also need a 7-way extension like the 24" # TLW6024 or 42" # TLW6042. Is this for an in-bed camper setup or something else?
    view full answer...
  • Recommended TorkLift Hitch and Extension for a 2024 Chevy Silverado 3500
    You're welcome Chris! Sounds like you've more then got the hitch covered. I can not think of a better option then the TorkLift SuperHitch Magnum Trailer Hitch item # TL74FR. You will be able to pull anything and everything with this hitch and it gives you the most options for capacity on extensions. Additionally, down the road if you need a heavy duty weight distribution system the highest capacity one is the TorkLift SuperHitch Everest item # TLWD1000. It only works with TorkLift's Dual...
    view full answer...
  • 2-1/2" Heavy Duty Trailer Hitch Receiver and Extension For a 2001 Ford F-350
    Yes, the Draw-Tite Trailer Hitch Receiver # DT45508 will fit on you 2001 Ford F-350 XL Super Duty. This will allow you to use either the 34" # RP45292 or 41" # RP45018 extension in the 2-1/2" Receiver. Do remember you will need a Wiring Extension # TLW6042 as well to connect your trailers electrical connection.
    view full answer...
    Image 1 for Image 2 for
  • Is There an Extension For a 7-Way Trailer Wiring Harness
    We absolutely have an extension for a 7-way trailer wiring harness with a male and female end. You can choose from a number of different lengths in order to get the size you need. I'll go ahead and list out the extensions by overall length so you can get the correct one for your needs. - 24" Long: TorkLift Wiring Harness Extension # TLW6021 - 28" Long: TorkLift Wiring Harness Extension # TLW6024 - 32" Long: TorkLift Wiring Harness Extension # TLW6028 - 38" Long: TorkLift Wiring Harness...
    view full answer...
  • Extension for 2019 F-450 With TorkLift SuperHitch Magnum and Host Mammoth 11.6 Camper
    Hi Steven, welcome back! The only way to know which extension you need is to measure. This will ensure you have enough clearance for whatever you're towing with that setup. If you have the camper mounted in the truck, measure from the face of the truck's rear bumper to the outside edge of the camper's bumper. If the camper is not mounted on the truck: 1. Measure from the inside of the front of your truck bed to the outside face of the truck's rear bumper. 2. Measure the camper's overall...
    view full answer...
  • 7-Way Wiring Extension for Camper with Jayco Square Connector
    The Curt 6-Pole Square wiring extension # C58034 uses two Jayco style connectors, both a vehicle side and a trailer side connector, so it can serve as an extension. If you want to install a standard RV 7-way plug on your existing trailer wiring so that the trailer directly matches the connector on the Honda you can use plug # A7WCB. Another route is to install a junction box with a built-in 7-way, such as # HS381-9000. This box mounts on the trailer and accepts the existing trailer wiring;...
    view full answer...
  • What Do I Need To Have To Tow A 42 Inch Long Hitch Extension On My 2008 Ford F-450
    To be able to tow a 42 inch hitch extension you will first need to know what hitch that you currently have on your truck, the hitch needs to be a Torklift Hitch # TLF1002-30 to be able to tow a 42 inch hitch extender without splitting your tongue capacity in half. The Torklift Hitch # TLF1002-30 is a dual receiver having both a 2-1/2 inch hitch and a 2 inch hitch. It has a bolt on installation with no welding required. The hitch has a black powder coat finish that helps resist corrosion....
    view full answer...
  • 36 Inch SuperTruss Hitch Extender and Wiring Extension For TorkLift SuperHitch
    To ensure that you actually need a 36 inch extender, and not something a little longer or shorter, TorkLift recommends taking the following measurement: If the camper is mounted on the truck, Measure from the face of the truck's rear bumper to the outside edge of the camper's bumper. This is the length of the extension that you need. If the camper is not mounted on the truck: 1. Measure from the inside of the front of your truck bed to the outside face of the truck's rear bumper. 2....
    view full answer...
  • Power Cord and Safety Chain Extenders for 41" Trailer Hitch Extension
    To extend your 7-Way wiring connector we have the TorkLift Wiring Harness Extension for 42" SuperTruss or Cannon Hitch Extender # TLW6042 and you can secure it to your extender with the mounting bracket # PK12711U. The safety chains are specifically designed for TorkLift extenders so you'll have to pick up a set like the 44" long Tow Ready Safety Chain Kit with Clevis Hooks # 49150 and modify them for your application for that part of your towing setup. Attached are some review videos...
    view full answer...
  • 7-Way Extension for Hard to Reach Connector on Prodigy RF Installed Under 2022 Highlander By U-Haul
    A big part of your problem is that the Tekonsha Prodigy RF is designed to be mounted to your trailer. If they were going to use a wireless brake controller and mount it to your vehicle it should have been the Curt Echo # C51180 which simply plugs in-line with your vehicle 7-way. You can try to take it back and have them redo it but it probably isn't worth the trouble to try and get them to fix this. The # C86DR is a different kind of extension so it won't work with your setup. You can use...
    view full answer...
  • 7-Way Extension to Use with 41 inch Hitch Extender
    We have the Torklift 7-way extender part # TLW6042 which is 42 inches long and would work well with the hitch extender # RP45018.
    view full answer...
  • Torklift Camper Tie Downs for 2021 Ford Super Duty with 8 foot Bed
    For a set of Torklift tie downs that fit your 2021 Ford F-350 long bed you'd want the part numbers # TLF2021 and # TLF3008 which are custom fit. For a rubber mat that fits your bed you'd then want the Westin part number # 50-6415. For a 7-way extension we have a few options like the part # TLW6024 which is 24 inches long, part # TLW6036 which is 36 inches long, and part # TLW6042 which is 42 inches long.
    view full answer...
  • Can TorkLift Wiring Extensions for SuperTruss Hitch Extenders Be Shortened
    You could cut and resplice the # TLW6532 7-way wiring harness extension to shorten it, but I'd personally be leery about that as the splices could possibly be vulnerable to the elements and corrosion. The best practice would be to get a harness in the correct length so you don't need to cut it up. TorkLift offers the extensions in the following lengths: • 24 inch, part # TLW6024 • 28 inch, part # TLW6028 • 32 inch, part # TLW6032 • 36 inch, part # TLW6036 • 42 inch, part # TLW6042 • 48...
    view full answer...
  • Total Length of the TorkLift Wiring Harness Extension # TLW6042
    The 48 inches of length that the TorkLift Wiring Harness Extension # TLW6042 has is the distance from end to end including the connectors.
    view full answer...
  • Trailer Wiring Extensions for use with Reese Titan 2-1/2-Inch Hitch Box Extension RP45292
    Thank you for your recent purchase of the Titan 2-1/2-Inch Hitch Box Extension # RP45292 and the Blue Ox 2-1/2-Inch Hitch Receiver Immobilizer # BX88225. These two items are compatible with each other. For a trailer wiring extension if you need a 7-way type you can use TorkLift 21-inch # TLW6021, 36-inch # TLW6036, 42-inch # TLW6042, 48-inch # TLW6048, 60-inch # TLW6060 or for a 10-foot length part # TLW6510. If you need a 4-pole wiring extension we have 12-inch # HM48145, 48-inch #...
    view full answer...
  • Recommendation to Extend Existing 7-Way Connector to Clear Truck Bed Camper
    For an adapter that will extend your existing 7-Way beyond the rear of the truck bed camper, I recommend the TorkLift Wiring Harness Extension # TLW6042. One end of the wiring harness will plug directly into your current 7-Way, while the other end features a 7-Way port for connecting to your boat trailer. This measures exactly 4 feet long, end to end, so it will work perfectly. I have attached a short video demonstration on this product that you can also check out.
    view full answer...

Do you have a question about this Custom Fit Vehicle Wiring?


Info for this part was:

Employee Mike L
Expert Research:
Mike L
Employee Lindsey S
Written by:
Lindsey S
Employee Andrew L
Video Edited:
Andrew L
Employee Wilson B
Updated by:
Wilson B
Employee Kristina F
Updated by:
Kristina F
Employee Isabelle B
Updated by:
Isabelle B

At etrailer we provide the best information available about the products we sell. We take the quality of our information seriously so that you can get the right part the first time. Let us know if anything is missing or if you have any questions.