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Triple-Axle Trailer Hanger Kit for Double-Eye Springs - 1-1/2" Front/Rear, 2-1/2" Center

Triple-Axle Trailer Hanger Kit for Double-Eye Springs - 1-1/2" Front/Rear, 2-1/2" Center

Item # APTT3
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Our Price: $97.46
Trailer Leaf Spring Suspension
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Trailer Leaf Spring Suspension APTT3 - Triple Axle - etrailer
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Leaf-spring mounting kit includes 1-1/2" tall front hangers, 2-1/2" tall center hangers, 1-1/2" tall 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 - 1-1/2" Front/Rear, 2-1/2" Center part number APTT3 can be ordered online at etrailer.com or call 800-298-1624 for expert service.
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  • Reviews (21)
  • Q & A (29)
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etrailer Trailer Leaf Spring Suspension - APTT3

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

Leaf-spring mounting kit includes 1-1/2" tall front hangers, 2-1/2" tall center hangers, 1-1/2" tall rear hangers, and necessary hardware. Equalizers are 7-3/4" long. Components for mounting axle to springs sold separately.


Features:

  • Attaches 6 leaf springs (sold separately) to your trailer frame
    • Use table below to determine hanger location based on type of leaf springs
  • Achieves 3-1/2" or 4-1/2" clearance between trailer frame and axle, depending on axle size
  • Includes:
    • (4) 1-1/2" Tall hangers
    • (4) 2-1/2" 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)
29-1/2"34"29-1/2"34"3-1/2"2-3/8"
(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-17 Triple Axle Hanger Kit - 1.75" Double Eye Springs - 2,000 lbs to 7,000 lbs

Replaces APTT3






Customer Reviews

Triple-Axle Trailer Hanger Kit for Double-Eye Springs - 1-1/2" Front/Rear, 2-1/2" Center - APTT3

Average Customer Rating:  4.9 out of 5 stars   (21 Customer Reviews)

Leaf-spring mounting kit includes 1-1/2" tall front hangers, 2-1/2" tall center hangers, 1-1/2" tall rear hangers, and necessary hardware. Equalizers are 7-3/4" long. Components for mounting axle to springs sold separately.

- APTT3
by:

I would give etrailer 5 stars all suspension parts ,brakes , wheels and tires were delivered without delay this tiny house is a work in progress the only miles I have put on it where to take it down and get it weighed all parts seem to be working fine.



- APTT3
by:

Worked excellent for trailer I built



- APTT3
by:

It's exactly what the pics show and delivery was super fast!!



- APTT3
by:

My order was complete and received in four days



- APTT3
by:

The hanger kit worked great! It fixed my old worn out suspension on my trailer, and it was easy to install.



- APTT3
by:

Product well priced, cheaper than I could get local and fast shipping. Will send pics of finished project



- APTT3
by:

Ordered trailer parts - great prices and fast shipping. Very satisfied.



- APTT3
by:

Good quality and Value.



- APTT3
by:

thank you for all your help , it works great . I would let any one to use you in the future . the delivery time was great and what I got from you was perfect. Glen Bentley



- APTT3
by:

Fast delivery and great service ,Parts were all packaged nicely



- APTT3
by:

All the products I received exactly what I needed, thanks a lot!



- APTT3
by:

parts look to be as advertised


Comments
the parts are working great , could not have done it with out the technical information that you made available ,
Jeffrey T - 09/12/2016



- APTT3
by:



- APTT3
by:



- APTT3
by:

Excellent customer service, super fast shipping, it was a very smooth transaction



- APTT3
by:



- APTT3
by:



- APTT3
by:

Great Product, great service, great val ue



- APTT3
by:

AS PROMISED



- APTT3
by:



- APTT3
by:

A#1


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Ask the Experts about this etrailer Trailer Leaf Spring Suspension

  • Triple Axle Hanger and Leaf Spring Kit for Boat Trailer with 12k Boat
    For a triple axle hanger kit the part # APTT3 would be a great option and then for leaf springs the part # SP-256275 would be a great option as well. These springs have a 4,500 lb axle capacity and are a standard length of 26 inches.
    view full answer...
  • Suspension on Instigator 3-Axle Boat Trailer Hits Frame
    I did some research on your trailer and also read a few bad reviews from customers with the company. Since I do not have the trailer in-front of me, there is no way for me to say for certain that the suspension is mounted incorrectly. But, it definitely should not be hitting the frame under normal use. I would recommend having a trailer professional checkout your trailer to see if everything is mounted correctly. If you bought the trailer new, you may be able to contact the company and...
    view full answer...
  • Recommended Hanger Kit for a Triple-Axle Trailer Hanger Kit for Double-Eye Springs
    The recommended hanger kit for a Triple-Axle Trailer Hanger Kit for Double-Eye Springs is part # APTT1. This kit is designed to work on axles with capacities of 2,000 to 7,000 pounds. If your mobile home trailer axle is within this weight capacity this kit should work for you. I attached a picture that has a chart that shows exactly how you should space the axles when used with a 6-leaf spring for 7,000 pound trailer axles like part # SP-198275.
    view full answer...
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  • Where Is Measurement Taken On 1-1/2 Inch and 2 Inch Hangers In Redline Trailer Hanger Kit # APTT3
    The height measurement of the hangers in the Redline Triple-Axle Trailer Hanger Kit, part # APTT3, is from the top of the hanger to the center of the bolt hole. The 1-1/2 inch tall hanger is the Redline Front/Rear Hanger for Double-Eye Springs, part # 115917 and the 2-1/2 inch tall hanger is the Redline Center Hanger for Double-Eye Springs, part # 115918. I am including a picture of the hanger and it shows where the dimension is measured.
    view full answer...
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  • Where to Place Tandem Axle Slipper Springs on Trailer being Built
    The slipper side of slipper leaf springs need to face the rear of the trailer. To determine the location for the front and rear hangers on your tandem axle trailer you will first need to make sure that you have the correct center point for your equalizer hanger. The center point of your equalizer hanger needs to be located where you will have 60 percent of the frame of the trailer in front of the center of the equalizer hanger and 40 percent behind the center of the equalizer hanger....
    view full answer...
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  • What Angle Should Shackle Straps be on a Triple Axle Trailer with Double-Eye Leaf Springs
    The angle of the shackle straps is not a precise measurement but you will want them to be around 45 degrees. The diagram may look different but staying around 45 degrees is where you will want to be. I have included a link to our FAQ article on double-eye trailer suspension for you.
    view full answer...
  • What is The Difference Between Having Trailer Axles Above or Below the Leaf Springs
    You can mount trailer axles above or below the leaf springs. The difference is just the amount of ground clearance that the trailer would end up having. The biggest advantage with the spring below the axle (trailer will be lower) is that you would have a lower center of gravity. The spring seats will need to be on the right side of the axle though when you go to install the new springs. Trailer axles have an arc to them so you can't just flip them over otherwise you would end up...
    view full answer...
  • Advantages to a Spread Axle Trailer over a Tandem Axle
    Spread axle trailers are pretty hard on tires when you are turning since the front tires will scrub and wear out quickly, also they are much harder to back up and are harder on suspension components. Spreads do have a little more flexibility with loading and in some areas can carry more weight, but that is something you would need to check your local DOT laws to confirm.
    view full answer...
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  • Why do Trailer Suspension Hanger Kits Include Hangers of Different Heights
    The hangers of the part # APTT3 that you referenced are different heights because the center hangers attach to equalizers which then attach to shackles and then finally to the leaf springs. Since there are several components in this arrangement a slightly shorter or longer hanger is used for the center hanger so that when everything is put together the spring ends up sitting level. Basically the equalizer moves the attachment down and then the shackle straps move it back up and then...
    view full answer...
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  • Dimensions for Spring Hanger Spacing Using the # APTT3 Triple-Axle Hanger Kit on a Boat Trailer
    The spring hanger mounting dimensions for the Triple-Axle Trailer Hanger Kit, item # APTT3, are as follows. From the center of the hole in the front hanger, to the center of the hole in the center front hanger, the distance should be 29-1/2 inches. From the center of the hole in the center front hanger, to the center of the hole in the center rear hanger, the distance should be 34 inches. And from the center of the hole in the center rear hanger, to the center of the hole in the rear...
    view full answer...
  • Triple Axle Hanger Spacing for Trailer with 25-1/2 inch Long Springs Loaded
    The distance between the two center hangers will be more than the other distances since there are two equalizers on that leaf spring whereas the front and rear leaf springs only have one equalizer. You also have to consider the width of the equalizers when determining the spacing. A simple solution would be to replace your hangers and equalizers with the kit part # APTT3 and then use 29-1/2 inches between the hangers for the front axle and then 34 inches between the center axle hangers.
    view full answer...
  • Triple Axle Hanger Kit and Leaf Springs Recommendation for 2006 Ragen Blackhawk 3605
    Your best option would be a triple axle hanger/equalizer kit like the part # APTT3 which comes with everything you need minus the leaf springs. Which then for leaf springs you'd want the part # SP-111275 and you'd be set as these are 6k axle leaf springs.
    view full answer...
  • How to Determine the Spacing Between Axles when Building a 4-Axle Trailer
    There are several things to consider when positioning axles on a trailer. I have included a picture that will help some but other factors include the springs and other suspension components you will be using. Also, a 4-axle trailer can potentially be a little troublesome because when turning the wheels can scrub (scrape the ground sideways). The closer the axles are together within reason the less likely this is to happen. But on 4 axles I do not think you will be able to avoid it completely. If...
    view full answer...
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  • Bolt and Bushings for Triple-Axle Trailer Hanger Kit
    The Triple-Axle Trailer Hanger Kit for Double-Eye Springs - 1-1/2" Front/Rear, 2-1/2" Center # APTT3 utilizes the 9/16 inch inner diameter bushings like # TRBU11566 and 9/16 inch bolts like # 166081.
    view full answer...
  • Triple-Axle Trailer Hanger Kit Recommendation for 7K Axles
    The Triple-Axle Trailer Hanger Kit # APTT3 that you referenced is designed to work on axles with capacities of 2,000 lbs to 7,000 lbs so it should work very well for you. I attached a picture that has a chart that shows exactly how you should space the axles when used with a 6-leaf spring like a # SP-198275. From the outer hangers to the inner hanger you will need 24-3/4 inches, in between the two center hangers you will need 29 inches.
    view full answer...
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  • What is the Capacity of an Axle That Has Dexter 8-147 Hubs
    With you having a Dexter 8-147 hub, you will have a 3,500 pound capacity axle. The measurement you got with the lug bolts means you most likely also have their Vintage 4 on 9.4 bolt pattern, but with even wheels you need to measure center to center of bolts directly across from each other. However, the 8-147 hub is no longer being produced. They can still be found, but it is not going to be an easy process. What may be easier will be to replace the hubs with something much more common,...
    view full answer...
    Image 1 for Image 2 for
  • How Long are the Shackle Straps in the APTT3 Hanger Kit?
    The shackle straps that are included with the etrailer.com Triple-Axle Trailer Hanger Kit # APTT3 will measure 2 5/8 inches from center to center.
    view full answer...
  • Can the Dexter Spring Over Axle Kits be Used on Boat Trailers?
    There will be no issues installing a Dexter Trailer Springs Over-Under Conversion Kit like the # K71-384-00 on your trailer. With that being said, this is specifically designed to fit a 2-38 inch axle with double eye springs, so this should be verified before purchase. This kit will include all the needed pieces needed to convert one axle.
    view full answer...
  • Recommended Leaf Springs and Equalizers for Triple Axle Trailer With Double Eye Springs
    I saw you were looking at double eye leaf springs so we will assume that is what you have. In regards to leaf spring hanger spacing, the most common for a triple axle trailer is 29-1/2" first to second (center to center), 34" second to third (center to center), and 29-1/2" third to last (center to center). Therefore, it would be best if you would place the leaf spring hangers accordingly. Once the leaf spring hangers are in the above positions then you have a few options based on axle...
    view full answer...
  • Parts Needed To Replace 2" Wide Slipper Springs On Triple Axle Trailer W/ Double Eye Springs
    I would be happy to help! The hangers on your trailer for using 2" wide slipper springs cannot be used with 1-3/4" double eye springs so you will need a new hanger kit. I recommend the Triple-Axle Trailer Hanger Kit for Double-Eye Springs # APTT3 which are designed for 1-3/4" double eye springs like you are wanting. This kit will install roughly 29-1/2" between the front hanger and first center hanger and between the rear hanger and the last center hanger, and roughly 34" between...
    view full answer...
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  • 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...
  • 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...
    view full answer...
  • Troubleshooting Triple Axle Trailer with Rear Axle Off The Ground
    It is definitely not recommended to add different size wheels to one of your axles on your triple axle trailer. There is likely a miscalculation in axle spacing that is causing that third axle to sit off the ground. That definitely is not ideal and needs to solved. It is likely an equalizer, shackle strap, or hanger mismeasurement. Triple axle trailers do have different measurements than tandem axle trailers so you don't simply space the hangers out evenly. Based on your tire size,...
    view full answer...
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  • 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...
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  • 3rd Axle Addition on Fifth Wheel Toy Hauler
    You can absolutely add a 3rd braking axle to your trailer. You will simply want to match your current axle for dimensions and capacity. I've linked the page to your options we carry to assist. Then you will need to change your hanger locations so, I recommend using the Triple-Axle Trailer Hanger Kit for Double-Eye Springs - 1-1/2" Front/Rear, 2-1/2" Center # APTT3 and I've attached a help article to assist with the placement. The leaf springs you need will depend on the axle capacity...
    view full answer...
  • Hanger Spacing for Triple Axle Trailer with 24-7/8 Inch Long Double-Eye Springs
    When using a triple-axle hanger kit like # APTT3 with the 6-Leaf 24-7/8 inch long Double-Eye Springs # SP-198275 referenced in your question, you will want to have a distance of 29-1/2 inches from the center of the hole in the front hanger to the center of the hole in the center front hanger. From the center of the hole in the center front hanger to the center of the hole in the center rear hanger you are looking at a distance of 34 inches. Then from the center of the hole in the center...
    view full answer...
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  • Triple Axle Hanger/Equalizer Kit Recommendation for Use with Leaf Springs SP-115275
    The closest equalizers we carry to the dimensions you mentioned are 5-3/4 inches long and 2 inches tall like the part # TREQ104. The closest triple axle kit we have is the part # APTT3 which has equalizer that are 7-3/4 inches long. I know we spoke earlier and you told me you have a mobile home triple axle trailer. Because of that I would recommend going with the # APTT3 with your springs and having the hangers moved to the appropriate dimensions that the kit calls for.
    view full answer...

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Info for this part was:

Employee Lindsey S
Updated by:
Lindsey S
Employee Alexander C
Updated by:
Alexander C
Employee Robert G
Expert Research:
Robert G
Employee Michael H
Expert Research:
Michael H
Employee Jeff D
Expert Research:
Jeff D
Employee Jameson C
Expert Research:
Jameson C
Employee Cole B
Installed by:
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