1. Hitch Adapters
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  3. Hitch Extender
  4. Fits 2 Inch Hitch
  5. 21 In Extension
  6. 7500 lbs GTW
TorkLift SuperTruss Hitch Extension for SuperHitch Trailer Hitch Receivers - 21" Long

TorkLift SuperTruss Hitch Extension for SuperHitch Trailer Hitch Receivers - 21" Long

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TorkLift Hitch Adapters - TLE1521
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Extend the top receiver on your TorkLift SuperHitch dual-receiver trailer hitch to clear obstacles such as your bed-mounted camper. Exclusive, heavy-duty design maintains a high weight capacity and can be used with a weight distribution system. Call 800-298-8924 to order TorkLift hitch adapters part number TLE1521 or order online at etrailer.com. Free expert support on all TorkLift products. Guaranteed Lowest Price and Fastest Shipping for TorkLift SuperTruss Hitch Extension for SuperHitch Trailer Hitch Receivers - 21" Long. Hitch Adapters reviews from real customers.
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  • Reviews (7)
  • Q & A (38)
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  • Why etrailer?

TorkLift Hitch Adapters

  • Hitch Extender
  • Fits 2 Inch Hitch
  • 21 In Extension
  • TorkLift
  • 7500 lbs GTW
  • Steel

Extend the top receiver on your TorkLift SuperHitch dual-receiver trailer hitch to clear obstacles such as your bed-mounted camper. Exclusive, heavy-duty design maintains a high weight capacity and can be used with a weight distribution system.


  • Extension piece extends SuperHitch receiver opening to clear obstacles such as your bed-mounted camper so you can tow
  • Heavy-duty design lets you maintain a high towing capacity and allows you to use a standard weight distribution system
    • Extension slides into both receivers of your TorkLift SuperHitch trailer hitch for excellent support and stability
    • Patented, lateral-support safety chains provide extra security and help to distribute weight back from the extension's receiver opening to your frame-mounted hitch
  • Electrical bracket lets you mount connector of 7-way wiring extension (sold separately)
  • Hardened, reinforced hitch pin holes prevent elongation from wear
  • Sturdy steel construction
  • Black powder coat finish resists corrosion
  • Built-in hookup loops for trailer safety chains
  • Hitch pin and clip or hitch lock sold separately
  • Made in the USA


  • Application: TorkLift SuperHitch dual-receiver trailer hitches
  • Length (from end of SuperHitch receiver to end of SuperTruss receiver): 21"
  • Receiver opening: 2" x 2"
  • Weight capacity when used with SuperHitch Original or Magnum:
    • Maximum gross trailer weight: 7,500 lbs
      • Maximum GTW when used with weight distribution: 14,000 lbs
    • Maximum tongue weight: 750 lbs
      • Maximum TW when used with weight distribution: 1,400 lbs
  • Weight capacity when used with SuperHitch Hero:
    • Maximum gross trailer weight: 3,500 lbs
      • Maximum GTW when used with weight distribution: 5,000 lbs
    • Maximum tongue weight: 350 lbs
      • Maximum TW when used with weight distribution: 500 lbs
  • Lifetime warranty

TorkLift SuperTruss in SuperHitch

This SuperTruss hitch extender is specially designed to work with your SuperHitch trailer hitch (sold separately). Like most products from TorkLift, the primary purpose of this extender is to help create a towing setup that fits perfectly with your truck bed camper system. Not only will you be able to extend your trailer hitch receiver out far enough to clear the overhang of your camper, but you will also maintain a high enough weight capacity so that you can tow your trailer.

Heavy-Duty Towing with a Hitch Extension

Most hitch extensions dramatically reduce the towing capacity of your hitch setup, making it difficult to tow a loaded trailer over a certain weight. The SuperTruss, though, creates such a sturdy connection with your SuperHitch trailer hitch that you can still maintain a high weight capacity. To get the highest capacity possible, use a standard weight distribution system with the TorkLift towing setup.

The SuperTruss uses both of the receivers on your TorkLift SuperHitch to ensure a sturdy, secure connection. The solid shank of the extension's top tube slides into your top receiver, and the extension's lower compression tube installs in your bottom receiver. Each tube is held in place with the hitch pins and clips that were included with your SuperHitch. The connection between the extension and your hitch is reinforced with 2 sturdy steel collars that bolt around the tubes of the SuperTruss.

To give you absolute peace of mind, lateral support chains connect to the hitch and the extension on either side of your setup. Just attach one end of each chain to the extension and secure the opposite end to your SuperHitch. Then tighten the chains with the integrated turnbuckles. These chains not only provide extra security to keep the extension in place in your hitch, but they also transfer some of the weight back from the extension to your frame-mounted hitch.

How to Determine the SuperTruss Length You Need

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. Measure the camper's overall floor length from the rubber bumpers at the front to the outside edge of the rear bumper.

3. Find the difference between these 2 figures by subtracting. The difference is the length of the extension that you need.

E1521 Tork Lift Super Truss Trailer Hitch Extender

Item # TLE1521

Customer Reviews

TorkLift SuperTruss Hitch Extension for SuperHitch Trailer Hitch Receivers - 21" Long - TLE1521

Average Customer Rating:  4.4 out of 5 stars   (7 Customer Reviews)

Extend the top receiver on your TorkLift SuperHitch dual-receiver trailer hitch to clear obstacles such as your bed-mounted camper. Exclusive, heavy-duty design maintains a high weight capacity and can be used with a weight distribution system.

- TLE1521

Excellent hitch and extension, really well built and easy to install. Needed this pull a 9000 lb trailer with a Polaris RZR in the back of my truck, and it allows me to do this with the tailgate down. So pleased with this product! 802449

- TLE1521

Product arrived on time and in good condition. Have not pulled with it yet but maybe complete setup this afternoon. Heavy duty well built truss extension. Thanks 792435

- TLE1521

simple fit up 616570

- TLE1521

Have not towed a trailer with it yet but have it installed and looks like it will get the job done. E trailer is easy to do busy with plus fast shipping. 603613

- TLE1521

I bought the super hitch too. E-Trailer is awesome! Everything got to my house quick and was east to install. I will be using E-Trailer for all my future needs. 516025

- TLE1521

As with the other review, I did not install this device as it turned out my truck was not designed for the stresses it would put on the frame. To 'beef it up costs' would have been prohibitive. The item is still in storage in my garage. So I can't write a review for a product I did not use. 435907

- TLE1521

Good product and price. Chris was very helpful through out the whole order . Thanks Chris 233218


Ask the Experts about this TorkLift Hitch Adapters

  • Hitch Extender for a Travel Trailer with 12,000 Gross Vehicle Weight Rating GVWR
    The only hitch extender we have that will work for you is the TorkLift SuperTruss Hitch Extension. The shortest extension they offer is part # TLE1521 which measures 21" long. The issue is the weight of your trailer and 50% reduction from the adapter. In order to use the SuperTruss you will also need the TorkLift SuperHitch Original Trailer Hitch Receiver part # TLC1212 if you have a 6-1/2' bed or part # TLC1211 if you have an 8' bed.
    view full answer...
  • Hitch Extension for Use With Truck Camper
    By extension that "uses chains to the corners of my truck hitch" I assume you are talking about an extender such as the TorkLift SuperTruss Hitch Extension # TLE1521 which attaches like in the accompanying photo. The SuperTruss extenders that use chains are only fits for TorkLift SuperHitch dual-receiver trailer hitches so these would only fit if you had one of those on your truck. As for 18" hitch extenders such as the Curt # C45796, there are none we carry which use chains that...
    view full answer...
  • How Long of a Hitch Extension Can be Used with Tow Bar
    Our tow bar/base plate kit manufacturers do not recommend using a hitch extender longer than 12 inches when flat towing since the added leverage stresses the vehicle hitch too much. For that Blue Ox does have the 12 inch extension part # BX88264 which has a 10,000 lb capacity. The Blue Ox part # BX7420 would be a great tow bar to use as well since it has the capacity you'd need of 6,500 lbs and is one of the easiest to use solutions available.
    view full answer...
  • How to Calculate Total Tongue Weight with Truck Bed Camper Attached
    You are correct in that the loaded ready to tow tongue weight (TW) of the boat/trailer and any cargo stored behind the rear axle of the tow vehicle will need to be accounted for when determining the total tongue weight (TTW) needed to choose the correct weight distribution system. The tongue weight of a boat trailer is usually lighter than most trailers as the engine is over the rear axle therefore, I speculate the tongue weight of your boat/trailer to be about 10% of the gross trailer...
    view full answer...
  • Will a Hitch Extender with Weight Distribution Cause Trailer to Sway
    Adding length to your trailer setup shouldn't increase the tendency of the trailer to sway as long as everything was done properly. If anything now the truck has more leverage over the trailer due to the increased tongue length. Usually it's shorter trailers that aren't sitting level or have improper tongue weight that are going to sway.
    view full answer...
  • Bolt Holes Not Lining Up for Torklift SuperTruss Hitch Extension
    We are not familiar with the problem you're describing on the TorkLift SuperTruss Hitch Extensions, # TLE1521. TorkLift makes their products here in the USA, but it is possible that your extension was made on a Monday. I spoke with my contact at TorkLift about the issue you have experienced with your extension. She confirmed that when installing the extension, the bottom bolts should be tightened first, then the top bolts. If the top bolts are tightened first, this can cause the holes...
    view full answer...
  • Which Torklift Hitch Allows Torklift Hitch Extensions to Fit and Capacities of 2011 Ford F-350 CC
    What hitch do you have on your truck? The Torklift hitch extensions like the part # TLE1521 and # TLE1524 require Torklift hitches like the part # TLF1003-30 which is a fit for your 2011 Ford F-350 cab and chassis model. You don't lose any capacity between the two extensions as they have same capacity. Here is capacity info for both: Weight capacity when used with SuperHitch Original or Magnum: Maximum gross trailer weight: 7,500 lbs Maximum GTW when used with weight distribution:...
    view full answer...
  • How To Tow with the Tailgate Down on a 2018 Ram 2500
    I do have options for you but the traditional hitch extenders like the Hitch Box Extension and Reducer part # RP45292 that you are looking at will reduce your towing capacity too much to be used with your trailer most likely. Therefore, the best option I have is a weight distribution system with an extended shank, the Equal-i-zer Weight Dist Shank part # EQ90-02-4600 and the Equal-i-zer Weight Distribution System part # EQ37121ET. I understand you may not need weight distribution but...
    view full answer...
  • Can I Extend My Hitch Without Using TorkLift Hitch and SuperTruss Extension
    The only other extension option we carry besides the Torklift SuperTruss extender that does not cut your tongue weight in half is an extra long ball mount. Traditional extensions such as part # C45796 cut the tongue weight capacity of the hitch on the truck in half because it creates extra leverage and movement in your towing setup. The only extra long ball mount we offer that is long enough for your setup is the Hidden Hitch ball mount part # 80232 at 15-3/4 inches long. That length...
    view full answer...
  • Recommended Dual Receiver Trailer Hitch for Extension and Weight Distribution Due to Truck Camper
    It sounds like you have a trailer hitch receiver already installed and need to add a second trailer hitch receiver for a double receiver to allow for the extension and tongue weight of your horse trailer. Because you don't have the factory hitch welded to your frame as you mentioned the steel pipe being bolted under your truck, you will need to remove the current hitch and replace it with the TorkLift SuperHitch Original Trailer Hitch Receiver - Custom Fit - Class V - Dual 2" Receivers...
    view full answer...
  • How to Get More than 16 inches of Hitch Extension from 2019 Ford F-350 and Tow 7,000 lb Trailer
    The only way to get that much extension and still have capacity for a 7,000 lb trailer is to first install a Torklift SuperHitch on your 2019 Ford F-350 as the factory hitch option is not going to work. So for that you'd want the part # TLF1008-30. With that installed you could then use the 21 inch hitch extender part # TLE1521 which would give you the capacity and extension you are wanting. This really is only option for what you are looking to do that is both safe and is overall a clean...
    view full answer...
  • Recommendation for Towing a Trailer with a Hitch Extension
    The Curt Trailer Hitch Receiver - Custom Fit - Class V Commercial Duty - 2-1/2" # C15809 is a great option for your 2011 Ram 2500 as long as you are okay with a 24 inch hitch extension like # C45048. This will give you a gross trailer weight of 8,000 lbs when used with weight distribution, so a weight distribution system would be required. Your other option is to use the TorkLift SuperHitch Original Trailer Hitch Receiver - Custom Fit - Class V - Dual 2" Receivers # TLD1102 instead...
    view full answer...
  • Recommended TorkLift SuperHitch for a 2016 Dodge Ram 2500 with Factory Hitch
    Good news! The two TorkLift Super Hitch confirmed fit options for your 2016 Dodge Ram 2500 Laramie with factory hitch are the 2 inch # TLD1109 or 2-1/2 inch # TLD1109-30. Since you plan on using the # TLE1521 or # TLE1524 you will most likely want the TorkLift 2 inch version # TLD1107. I have linked all the above mentioned products to this page for your convenience.
    view full answer...
  • Longest Weight Distribution Shank for a 2-1/2 Inch Trailer Hitch Receiver
    All of the Equal-I-Zer 2-1/2 inch weight distribution shanks are 12 inches long. The Equal-I-Zer weight distribution head will also fit Reese shank # RP54976 which is 15 inches long but there are no 2-1/2 inch options that are 18 inches long. What you could do is install the Tork Lift Super Hitch Magnum, # TLF1008-30, on your 2017 Ford F-250 and then use the SuperTruss extension, # TLE1521. The extension is 21 inches and when used with weight distribution it is rated for 14,000 pounds...
    view full answer...
  • Towing a Boat Trailer with Folding Tongue Using Weight Distribution with Camper in Truck Bed
    It is not a good idea to use weight distribution with a folding tongue due to the amount of force applied by the spring bars to the trailer. If you were to do it you would need to have a pole tongue adapter such as # RP58393 since the trailer does not have a traditional A-Frame. The other issue is that you would need a system rated much higher. This is because when you calculate tongue weight for weight distribution you have to add in the weight of anything loaded behind the rear axle...
    view full answer...
  • Hitch Adapter Or Extension Compatible With Weight Distribution System
    The use of an extension like the Brophy Hitch Reducer and Extender - 2-1/2" to 2" Trailer Hitch - 6" Long # HR26 will not work with a weight distribution system. The use of an adapter like this reduces the tongue weight by 1/3 to 1/2 depending on the actual extender and is not intended for use with weight distribution. If you just need the reducer for your system, I recommend the Curt Hitch Receiver Reducer Sleeve - 2-1/2" to 2" # C45405 which will make things compatible as long as you...
    view full answer...
  • Hitch Extender for 2014 Toyota Tundra Towing Trailer with Weight Distribution
    The further you extend the connection point between the truck and trailer and the more adapters you use, the less your weight capacity will be. The Brophy Hitch Extender part # ST18 can be used with a weight distribution system but you will reduce your towing capacity by 1/3 or 7,000 lbs, whichever is lower. Therefore, if the trailer hitch on your tow vehicle is rated for 13,500 lbs or more then you can use the Brophy Hitch Extender. There are other adapters available but each manufacturer...
    view full answer...
  • Is there a 12 Inch Long Hitch Extender Rated for Towing a 10,000 lbs Trailer with a 2014 Ram 3500
    The hitch extenders that are rated for 10,000 pounds are all for tow bar applications only so we have to take a different approach. If you have the factory trailer hitch that is welded onto your 2014 Ram 3500 then the best option would be to add TorkLift SuperHitch # TLD1108 and then use SuperTruss Extender # TLE1521. When using the SuperTruss extender you would have to then use weight distribution to get the capacity to 14,000 pounds.
    view full answer...
  • Recommended Trailer Hitch With Extension For 1997 Ford F-250 With Camper And Boat Trailer
    Yes. The TorkLift SuperHitch is the only brand that accepts the custom fram mounted camper tie downs. For your 1997 Ford F-250, the hitch receiver you would need is the TorkLift SuperHitch Original Trailer Hitch Receiver - Custom Fit - Class V - Dual 2" Receivers # TLF1000. You would not need to modify your exhaust or move your spare, you would only need to temporarily move for installation. The only 21 inch extension that will not reduce a hitch capacity by 50% is the TorkLift SuperTruss...
    view full answer...
  • Recommended SuperTruss And TorkLift SuperHitch on 2016 Chevy 2500
    There is really only one solution I recommend that will work for your desire to pull a trailer with the tailgate down. I recommend removing your Class V hitch and replacing it with the TorkLift SuperHitch # TLC1211. This would need to be used with a factory hitch and the TorkLift SuperTruss Hitch Extension for SuperHitch Trailer Hitch Receivers - 36" Long # TLE1536 to clear your tailgate. There are wiring extensions available as well like the 36 inch # TLW6036. There are different...
    view full answer...
  • Hitch Extension, TorkLift SuperHitch Magnum, Camper Tie Downs, and Air Bags for a 2015 Ford F-250
    Since the bed on your 2015 Ford F-250 is 6-3/4 feet and the camper is 8 feet, 7 inches you are correct about needing an extension. Otherwise it is possible for the truck to make contact with the trailer when turning. There are several extensions that will word with the TorkLift SuperHitch Magnum Trailer Hitch # TLF1002-30 which does use a specific extension. I recommend the 21 inch long SuperTruss # TLE1521 because it combined with a ball mount will give you enough extension. You also...
    view full answer...
  • Hitch Extender Recommendation for 2017 Ford F-250 Towing 8,000 lb Trailer
    If you cut the Reese hitch extender part # RP45292 down to the 24 inch length and use your weight distribution system this setup would be good for 8,000 lbs like you said you have. But you'll have to make sure you do not exceed 8,000 lbs. This is the highest capacity option we have that wouldn't require replacing your truck hitch and using a TorkLift SuperTruss Hitch Extension # TLE1521. This has more capacity at 14,000 lb when used with a WD system. The trailer hitch you'd need for...
    view full answer...
  • Why is Tongue Weight of Roadmaster Hitch Extender # RM-071 100 lbs
    The Roadmaster Hitch Extender part # RM-071 that you referenced is designed to be used only in flat towing situations where there wouldn't be hardly any tongue weight. This is due to the fact that the vehicle being towed has all 4 wheels on the ground unlike a trailer that only has one axle. It's not rated for trailer use, but it can be used when flat towing a vehicle up to 6,000 lbs. Even our most heavy duty hitch extenders like the Torklift Super Truss part # TLE1521 have lower...
    view full answer...
  • Extension So Trailer Can Clear In-Bed Camper in a 2012 Chevy Silverado 2500 Short Bed
    Some hitch extenders are rating for use with weight distribution and some are not. But all of the ones for a 2 inch trailer hitch receiver reduce the tongue weight capacity of the trailer hitch by 50 percent. Even with a 2-1/2 inch hitch and extension there will be a capacity problem. More on that later. Brophy extender and step # ST18 is a little longer at 18 inches than what you are looking for (there isn't one that is exactly 15 inches) but it can be used with weight distribution....
    view full answer...
  • Recommended TorkLift SuperHitch for a 2010 Dodge Ram 3500
    I do have an option for you but the TorkLift SuperHitch Original Trailer Hitch Receiver part # TLD1100 will not fit your 2010 Dodge Ram 3500. This hitch is only designed to fit a Dodge Ram 3500 from 1994-2002. Instead, I recommend using the TorkLift SuperHitch Original Trailer Hitch Receiver part # TLD1101 if you do not have a factory hitch or part # TLD1102 if you do have a factory hitch. If you also need the TorkLift SuperTruss and then you can use one of the following depending on...
    view full answer...
  • TorkLift SuperHitch Magnum Trailer Hitch Receiver Availability for a 2008 Ford F-250
    There are two different TorkLift SuperHitch Magnum Trailer Hitch Receiver's for your 2008 Ford F-250. There is part # TLF1002-30 which has a 2-1/2" an 2" receiver tube opening and part # TLF1002 which has two 2" receiver tube openings. The receiver tube opening size is the only difference between the above two hitches. I was not able to reference the different frame widths you mentioned. If you also need the TorkLift SuperTruss and then you can use one of the following depending on...
    view full answer...
  • Do Turnbuckles for TorkLift SuperTruss Extensions have a Weight Capacity
    Turnbuckles # TLS9011 do not have a listed weight capacity but according to Tork Lift they are rated for 2,000 pounds. But they are not supporting any trailer weight just there for support of the SuperTruss extensions such as # TLE1521.
    view full answer...
  • Torklift SuperHitch Fit Recommendation for 2012 Ram 2500 with Factory Bolted on Trailer Hitch
    The correct Torklift hitch for your 2012 Ram 2500 that has a bolted on factory trailer hitch is the part # TLD1101. We have confirmed this fit with Torklift so we know it will work. For Supertruss extensions we have three options. The part # TLE1536 for 36 inches, part # TLE1521 for 21 inches, and part # TLE1524 for 24 inches.
    view full answer...
  • Hitch and Extension Recommendation for 2017 Ram 2500 Compatible with Weight Distribution
    For your 2017 Ram 2500 short bed the Torklift Hitch part # TLD1109-30 is a confirmed fit and will work well to let you use the extension # TLE1521 which is an extension that measures 21 inches long and is compatible with weight distribution.
    view full answer...
  • Hitch Extension and Weight Distribution System Recommendations for 2013 Ford F-150 Towing Trailer
    Almost all hitch adapters and extenders have the side-effect of reducing your hitch's tongue weight (TW) and gross trailer weight capacities by as much as 50-percent. This is true for the 18-inch hitch extension for 2-inch hitches # HE18 from Hidden Hitch. This extender tube fits into a 2-inch hitch and provides 18-inches of extension to its 2-inch receiver opening. All other things being equal the shorter extension is the better extension. All 2-inch extenders are shown on the included...
    view full answer...

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Info for this part was:

Written by:
Lindsey S
Expert Research:
Jameson C
Video Edited:
Jacob T
Installed by:
Randy B
Updated by:
Sarah W
Updated by:
Isabelle B
Video by:
Zach D

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