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Triple-Axle Trailer Hanger Kit for Double-Eye Springs - 3-1/4" Front/Rear/Center

Triple-Axle Trailer Hanger Kit for Double-Eye Springs - 3-1/4" Front/Rear/Center

Item # APTT5
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Our Price: $128.52
Trailer Leaf Spring Suspension
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Shipping Weight: 35 lbs
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Trailer Leaf Spring Suspension APTT5 - Hangers,Suspension Kits - etrailer
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Leaf-spring mounting kit includes 3-1/4" tall front, center, and rear hangers, and necessary hardware. Equalizers are 7-3/4" long. Components for mounting axle to springs sold separately. Lowest Prices for the best trailer leaf spring suspension from etrailer. Triple-Axle Trailer Hanger Kit for Double-Eye Springs - 3-1/4" Front/Rear/Center part number APTT5 can be ordered online at or call 1-636-306-4830 for expert service.
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  • Reviews (38)
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etrailer Trailer Leaf Spring Suspension - APTT5

  • Hangers
  • Suspension Kits
  • Spring Mounting Hardware
  • Double Eye Springs
  • Triple Axle
  • etrailer

Leaf-spring mounting kit includes 3-1/4" tall front, center, and rear hangers, and necessary hardware. Equalizers are 7-3/4" long. Components for mounting axle to springs sold separately.


  • Attaches 6 leaf springs (sold separately) to your trailer frame
    • Use table below to determine hanger location based on type of leaf springs
  • Achieves 4-1/2" or 5" clearance between trailer frame and axle, depending on axle size
  • Includes:
    • (8) 3-1/4" Tall hangers
    • (4) 7-3/4" Long curved equalizers
    • (16) 2-5/8" Long shackle straps
    • (24) 3" Long x 9/16" diameter shackle bolts
    • (24) 9/16" Diameter locknuts
  • Designed for use on trailers with triple, 2,000-lb to 7,000-lb axles
  • Does not include components for mounting axle to springs

Hanger Locations for Triple Axle

Leaf SpringsA - Distance Between Front and 1st-Center HangersB - Distance Between Center HangersC - Distance Between 2nd-Center and Rear HangersD - Distance Between U-BoltsE - Distance Between Center of Axle and Trailer FrameAxle Diameter
SP-169275 (1020)24-3/4"29"24-3/4"28-1/2"4-1/2"1-3/4"
(typical 2,000-lb trailer axle)
SP-219275 (PR722)
SP-220275 (PR3)
SP-218275 (PR4)
SP-212275 (PR4B)
SP-111275 (PR5)
SP-198275 (PR6)
(typical 3,500-lb trailer axle)

Note: The above table provides an indication of where the included hangers can be mounted on your trailer. The distance between the hangers may vary depending on your specific application. Be sure to verify proper positioning before welding.

TSW-18 Triple Axle Hanger Kit - 1.75" Double Eye Springs - 2,000 lbs to 7,000 lbs

Replaces APTT5

Customer Reviews

Triple-Axle Trailer Hanger Kit for Double-Eye Springs - 3-1/4" Front/Rear/Center - APTT5

Average Customer Rating:  4.8 out of 5 stars   (38 Customer Reviews)

Leaf-spring mounting kit includes 3-1/4" tall front, center, and rear hangers, and necessary hardware. Equalizers are 7-3/4" long. Components for mounting axle to springs sold separately.


We installed the kit on a home-built 25' gooseneck trailer that we were converting from 2 axles to 3. This kit, along with new leaf springs on all 3 axles, went on with no issues, and it has been running strong with no problems since the installation. We've put quite a bit of weight on the trailer between logs, lumber, tractors, and equipment, and there have been no issues so far. It was great to have everything we needed, (other than springs), in one kit!

And etrailer has always been good about fast delivery, easy purchasing, and great updates on status. Things have gone so smoothly that we have never had to contact Customer Service, so I can't comment on how they do!


I ordered this kit for a trailer that I bought as scrap iron to haul logs so I wouldn't tear up my good trailer. The first load I broke 3 shackles and 2 equalizers. I looked at parts and found this kit at a great price to rebuild my suspension. I had it within 3 days of the time I ordered, And the service was great!! The best part....... when I got the box I thought they knew me personally and had already seen the trailer I was working on, Redneck Trailer Parts LOL. I plan on getting rid of the redneck dually setup with a different set of axles and get rid of the trailer house wheels and make it into a gooseneck. I will for sure get all my parts from for the rest of this project and any other trailer parts I need. VERY VERY pleased with the parts, service and fast shipping!!


Everything is great all finished I appreciate the great service I’ve received from etrailer over many years


Awesome kit. Has everything you need to replace worn out hanger kit. Highly recommend!!!

Plus shipping was much faster than estimated.


The hanger kit is holding up very well.


Thanks for speedy service and providing an very good quality product.


I purchased this kit to replace my existing suspension on an old equipment trailer. Very happy with the product and the help that I received from Londyn in taking the time to help me find the right set to fit my trailer requirements.

A tip for if you are replacing them on a trailer with existing shackles or if you don't want to pull the axles out from underneath the trailer. If you set up the hangers onto a 2x4 you can clamp them into place with the board holding them in place and inline with each other so you can tack weld them to the frame without worrying about them bowing or twisting out of alignment. And it will save you lots of time and frustration.


The bolts and shackle set that I bought worked out wonderful bolted right up no issues had it done in a couple hours thanks so much

Very good
Steve - 07/01/2020


The bushings in my equalizers were worn out, so I was just going to buy new equalizers, then I decided to buy new bolts also. This kit cost less than the equalizers and bolts so I bought it. I went ahead and used the new shackles, but I now have a set of hangers laying around. It all fit well. I used it with PR4 springs. My existing hangers were already set up with the dimensions shown on the web page for this kit.


Everything fit as expected. My trailer rides like new again.


We had an old tri-axle that needed work. Overall a good trailer just many road miles and worn parts. With this kit we were able to get it on the road again, with parts that match the job went quickly. The website even offered a diagram for proper spacing of the hangers for the layout.
This is only the second time I have used E-trailer, but if they keep up the great service, I can see many years of business helpiong to maintain my fleet of 100+ vehicals.


Haven't had a chance to put them on. Received products earlier than expected. Will try to send pictures before, as, and after putting them on.


Great quality. Great price. Went on 22k tri axle gooseneck. Tightened everything right up. Only wish is that the nylon bushings were softer steel aloy for longevity sake.


Excellent quality. Needed a full triple axle kit. Everything was there. Turned the trailer over and had it put together and welded up in about 4 hrs. Will definitely be ordering more product from this company in the future.


Great products and service!! All parts were correct, delivered fast and fit like a glove. Thanks You


Perfect for the dump trailer I am building. Product was shipped fast and in good condition when it arrived. The product is easy to install but it would be nice if they added mounting instructions with the parts. This information is available on their website however and is easy to follow


My order was on hold fore quite some time so I called and spoke with Lauren and she took good care and found their was only one item holding things up so we canceled that item and she got the remaining order shipped right away. Ask for Lauren if you want it done right!


The kit fit well, however I was missing one bolt and nut from the kit.


Did the job repairing our camper just f ine.

Still working
Camper - 09/30/2018


very good and quick shipping


Great quality, fit great, great price, fast shipping


Was going to remove and rework old parts but found this kit and at a great price. The order came quickly and the parts are perfect. Highly recommend these parts for your next job!


top notch product at a very good price. Fast delivery and the help sections are very informative. I would recommend this company to everyone


Worked as described. Got my trailer pulling like new.


Show More Reviews

See what our Experts say about this etrailer Trailer Leaf Spring Suspension

  • Can Triple Axle Hanger kit part # APTT5 be Used on Trailer with 7k Axles
    Yes, the Triple Axle Hanger kit part # APTT5 would work great on your trailer that has 7k axles as it was designed for use on axles up to 7k.
    view full answer...
  • Differences Between Triple Axle Hanger Kits APTT1, APTT3, and APTT5
    The differences are the dimensions of the hangers and equalizers of the three kits. The # APTT1 uses totally straight equalizers and taller center hangers. The # APTT3 uses more traditional sized equalizers and center and outside hangers that differ in size slightly. The part # APTT5 uses a standard sized equalizer and hangers that are all the same height. The part # APTT3 is the one that is the most commonly used. It would be my recommendation for your trailer.
    view full answer...
  • Triple Axle Boat Trailer Suspension Clearance Problems After Installing New Front Springs
    The first thing I would check on is the capacity of the new springs that you had installed on the trailer. You need to be sure that the spring capacity is rated at 1/2 the axle capacity. That way 2 springs equal the capacity of the trailer axle for proper fit. Check the arch of the springs with a level top of spring to top of spring to tie bolt. Next, check the suspension components on the trailer and make sure there is no damage. The Spring hangers, equalizers or shackle straps could...
    view full answer...
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  • Triple Axle 5th Wheel Trailer Has Center Axle Forward and Backward Movement
    Some movement is normal. This is because there are two pivot points, one at the second hanger and one at the third hanger which are on either side of the center axle. What you will want to do is check several things to determine if there is wear that is causing excessive movement. Check the shackle straps, equalizers, and hangers to see if the holes have elongated. If so they will need to be replaced. Also make sure the u-bolts are tight and in the correct position and that the nub on...
    view full answer...
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  • Distances Between Hangers for Triple Axle Kit when Used with Hanger Kit APTT5
    Yes we do have a chart that shows how to space the axles of a triple axle trailer with a hanger kit like the # APTT5 that you referenced. I attached this chart for you to check out as well. The bottom section of the chart is for use with springs that are 25-1/4 inches in length from spring eye to spring eye. This is most likely what you have. The upper portion is for springs that are 20-3/8 inches.
    view full answer...
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  • Torque Specification for Shackle Bolts in Redline Triple-Axle Trailer Hanger Kit
    For the 9/16 inch diameter shackle bolts included in the Redline Triple-Axle Trailer Hanger Kit # APTT5 referenced in your question, you will want 65 to 95 foot pounds of torque. This kit can be used to attach 6 leaf springs to your trailer frame. I have also included a chart that will help you determine the hanger location based on the type of leaf springs you have for your trailer.
    view full answer...
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  • Reasons for Different Spacing Between Hangers in Triple Axle Hanger Kit
    The difference in the spacing for the # APTT5 hanger kit comes in to play with the center spring due to the additional components attached at each end of the spring. Both the first spring and last spring have the same spacing since they are each attached to the hanger at one end and the equalizer at the other. The center spring however is attached to two equalizers. Since the center spring doesn't contact a hanger directly, some additional space is needed between the hangers to accommodate...
    view full answer...
  • Troubleshooting Front Equalizer On Triple Axle Trailer Hitting Trailer Frame
    Based on the picture you provided you will need to replace the center hangers on your triple axle trailer with the Center Hanger for Double-Eye Springs - 5-7/16" Tall - 3/4" Bolt Hole # 115919 which is just under 2-1/4" taller than the center hangers included in the # APTT5 you purchased and will give you the additional clearance you need. I included a video of the # 115919 for you to take a look at.
    view full answer...
  • Will Trailer Suspension Hanger Kit APTT5 Work with Leaf Spring # SP-221275
    Yes the leaf spring part # SP-221275 would work great with the hanger kit part # APTT5 that you referenced.
    view full answer...
  • Replacement 6k Leaf Springs and Hanger Kit for 2015 Venture Trailer with 17k GVWR
    Based on the GVWR and the amount of axles your trailer has you'd want a leaf spring for 6k axles like the part # SP-111275. Then for a triple axle hanger kit the part # APTT5 would work great.
    view full answer...
  • Do Hangers Need to be Modified or Replaced When Switching to New Equalizers on Trailer
    You shouldn't need to modify the hangers at all on your trailer when going from a straight equalizer like # TREQR2 to Y-shape units like the ones in the Triple Axle Kit # APTT5 that you were looking at. The shackle strap angle will make up for the difference between the two designs. The difference in height between the front/rear hangers and the middle hangers on your triple axle trailer is not uncommon. This is actually the more standard method than using hangers of all the same length....
    view full answer...
  • Suspension Hanger Kit Recommendation for a Triple Axle Trailer
    The part # APTT5 that you referenced is a triple axle suspension hanger kit that would work well for you. For a spring the part # SP-219275 is a very popular option.
    view full answer...
  • How to Determine if a 108 Triple Axle Fender Would Work with the Hanger Kit part # APTT5
    The distance between the axle centers with the # APTT5 when used with a 25-1/4 inch spring like the # SP-219275 will be 34 inches. You would need to compare that dimension to the dimension of the wheel centers on the fender to see if this kit would fit. Tire size will play into this as well. You will need to consider this also.
    view full answer...
  • Distance Between Hangers When Using Hanger Kit part # APTT5 with 26 inch Long Trailer Leaf Spring
    There aren't holes through the top of the hangers that come with the # APTT5 so there wouldn't be a way to bolt them to your trailer. If the springs you have are 26 inches long you would need to have a distance of 34-3/4 inches between each hanger. Typically this kit is used on 25-1/4 inch springs like the # SP-218275 which then would call for 34 inches between the hangers on center.
    view full answer...
  • Do The Trailer Suspension Hangers & Equalizers Need To Be Changed Going From 3,500 to 6,000LB Axles?
    You may be able to use the same hangers and equalizers that are already being used on your triple axle trailer. First you will need to determine if you will be changing wheel and tire sizes that will require you to move the axles further apart so that the tires do not contact each other. This may also affect your trailer fenders if the axles are being spread further. If your tire spacing is okay you will then only need to find the larger capacity leaf springs that match the length of...
    view full answer...
  • Leaf Springs and Shackle Straps for Triple Axle Trailer with 7-3/4 Inch Equalizers
    The issue you are experiencing is a result of leaf springs that are too long for your hanger spacing. You will want shorter springs and I recommend also going with a capacity more geared toward your axles. You will want to use the Triple-Axle Trailer Hanger Kit for Double-Eye Springs # APTT5 and # APTT3 for reference. These kits are rated for 2,000 to 7,000 lb axles with almost identical spacing. My recommendation for you is the 6-Leaf Double-Eye Spring for 5,300-lb Trailer Axles...
    view full answer...
    Image 1 for Image 2 for
  • Correct Hanger Spacing Using Triple-Axle Hanger Kit With 3,500 Lb 25-1/8 Inch Long Leaf Springs
    The correct hanger spacer when using the Triple-Axle Trailer Hanger Kit part # APTT5 with the 4-Leaf Double-Eye Spring part # SP-212275 is 29-1/2" from the front hanger to the center hanger, 34" between the center hangers, and 29-1/2" from the second center hanger to the rear hanger. Please note, you will also need the U-Bolt Kit for Mounting Kit part # APUBR-1 in order to mount the leaf springs to the axle.
    view full answer...
  • Leaf Spring, U-Bolt Kit, and Hanger Kit Recommendation for Triple Axle Trailer
    For 7,000 lb axles we have the leaf springs part # SP198275 which is a great starting point. You'd need a total of 6 of these. Then for a U-bolt mounting kit for 7k axles we have the part # APUBR-8 which you'd need three of. Then for a triple axle hanger kit you'd need the part # APTT5 and you'd be set.
    view full answer...
  • Parts Needed To Convert Tandem Axle Trailer To Triple Axle
    I would be happy to help! To add a 3rd axle you will need to start with a new hanger kit of which I recommend the Triple-Axle Trailer Hanger Kit for Double-Eye Springs - 3-1/4" Front/Rear/Center # APTT5. This will work perfectly with the Lippert 7k axles you have. Next you will need 6 of the 6-Leaf Double-Eye Spring for 7,000-lb Trailer Axles - 24-7/8" Long # e64SR which when paired with the # APTT5 will give you 34" axle spacing. Moving on to U-Bolts you will need 3 of the U-Bolt Kit...
    view full answer...
  • Recommended Hanger Spacing for Triple Axle Trailer
    There will be different dimensions between the hangers. From front to back your hangers for that 20-3/8 inch spring like # SP-169275 will be 24-3/4 on center then 29 inches on center and finally 24-3/4 inches on center. This will put each of the 3 axles 28-1/2 inches on center. I've attached a photo to assist. This is all based on 7-3/4 inch curved equalizers and 2-5/8 inch long shackle straps. These are found in the Triple-Axle Trailer Hanger Kit for Double-Eye Springs - 3-1/4" Front/Rear/Center...
    view full answer...
    Image 1 for
  • Recommendation for Adding Third Axle To Trailer Suspension
    The Dexter Heavy Duty Suspension Kit # K71-360-00 is designed for 33 inch axle spacing. To add your third axle, you cannot simply add a hanger spring and axle. You can keep your 35 inch spacing but you will need to relocate your hangers. I've attached an article to help with the proper positioning of your axles. You will need to add another equalizer of the same dimension as you have to each side and then add the same leaf springs and shackle straps as what you currently have. You...
    view full answer...
    Image 1 for
  • Does Trailer Suspension 7-3/4 Inch Equalizer EQ-E1 Have a Weight Capacity
    Equalizer # TREQE1 does not have a weight capacity itself. It isn't bearing much of the weight compared to other components in a trailer suspension set up. If you have a tandem axle trailer then you could potentially use kit # APT5, # APT3, # APT9, # APT8, # APT7, or # APT3HD. All of these kits have the 7-3/4 inch long equalizers. For a triple axle trailer you could use # APTT5 or # APTT3. All of the above kits also come with hangers. If you do not need hangers then you would need to...
    view full answer...
  • Axle Lift and Spring Replacement for Slipper Springs on 1987 Featherlight Gooseneck Stock Trailer
    For your slipper springs there isn't a lift kit available and the over-under kits like # K71-384-00 for 2-3/8 inch diameter axle or # K71-385-00 for a 3 inch axle are not compatible with slipper springs. The equalizers for slipper springs operate differently from double eye spring equalizer so there is more visual play in the slipper equalizers. Since you have slipper springs, you would need to replace the hangers for the additional height desired. I've linked the page to assist.
    view full answer...
  • Trailer Axle Over-Under Kit to Raise Height of Trailer
    You can increase trailer height by welding on taller spring hangers but there is also another way to lift a trailer without having to cut off the old hangers and weld on all new ones, an axle over-under kit. Kit # K71-384-00 for 2-3/8-inch diameter axles and kit # K71-385-00 for 3-inch axles are bolt on kits that place your leaf springs above the axles, as shown in the linked photo. The amount of lift you get will be the sum of the axle diameter plus the height of the spring stack. So,...
    view full answer...
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