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  1. Trailer Leaf Springs
  2. Universal Group
  3. Slipper Springs
  4. 24-5/8 Inch Long
  5. 2000 lbs
  6. 4 Leaf
4-Leaf Slipper Spring w/ Radius End for 2,000-lb Trailer Axles - 24-5/8" Long
Universal Group

4-Leaf Slipper Spring w/ Radius End for 2,000-lb Trailer Axles - 24-5/8" Long

Part Number: SP-179275
In Stock
$41.99
Trailer Leaf Springs
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Slipper leaf spring acts as part of a trailer's suspension system by providing an attachment point for a 2,000-lb axle. Spring flexes to resist shock and also ensures a smooth ride. Includes bushing with 9/16" inner diameter. Great Prices for the best trailer leaf springs from Universal Group. 4-Leaf Slipper Spring w/ Radius End for 2,000-lb Trailer Axles - 24-5/8" Long part number SP-179275 can be ordered online at etrailer.com or call 1-800-940-8924 for expert service.
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Universal Group Trailer Leaf Springs - SP-179275

  • Slipper Springs
  • 24-5/8 Inch Long
  • 2000 lbs
  • 4 Leaf
  • 1-3/4 Inch Wide
  • Universal Group
  • 9/16 Inch Eye
  • Standard Grade
  • Nylon Bushings

Slipper leaf spring acts as part of a trailer's suspension system by providing an attachment point for a 2,000-lb axle. Spring flexes to resist shock and also ensures a smooth ride. Includes bushing with 9/16" inner diameter.


Features:

  • Leaf spring acts as part of your trailer's suspension system
    • Provides attachment point for your trailer's axle
  • Multiple leaves allow flexibility to absorb road shock
    • Allows for a smooth ride
    • Reduces wear and tear on trailer
    • Ensures level ride on bumpy and uneven surfaces
  • Sturdy steel construction
  • Nylon bushing included
  • Pre-mounted hangers or aftermarket hanger kit (sold separately) required for installation
    • Eye of spring attaches to hanger mounted on trailer frame
    • Slipper end slides into hanger or equalizer


Specs:

  • Quantity: 1 leaf spring
  • Spring capacity: 1,000 lbs
  • Axle capacity: 2,000 lbs
  • Length from center of spring eye to end of spring (unloaded): 24-5/8"
  • Spring width: 1-3/4"
  • Eye diameter with bushing: 9/16"
    • Eye diameter without bushing: 11/16"
  • Leaf thickness: 1/4"
  • Number of leaves: 4
  • Additional dimensions: see table


Radius End Slipper Spring

Part NumberABCDEF
SP-17927511"22-11/16"24-5/8"12"14-1/2"3-3/4"


Note: To ensure proper axle alignment and suspension performance, leaf springs should always be replaced in pairs.


Leaf springs are an integral part of your trailer suspension system. The leaf springs provide the attachment points for your trailer's axle, suspending it from the frame of your trailer. Each spring flexes to absorb road shock as you travel, allowing the axle to move somewhat independently of the rest of your trailer. This helps to reduce wear and tear on the trailer and also ensures a smooth ride.


Slipper leaf springs attach to hangers that are welded onto your trailer. The eye of this spring will attach to the front hanger with a suspension bolt. The flat slipper end of the spring will slide into the rear hanger. If you have a tandem- or triple-axle trailer, the slipper end will slide into the equalizer that connects multiple springs. The shape of the slipper end of a leaf spring may vary slightly due to differences among trailer manufacturers. Because of this, it's important to check your leaf spring's slipper end before purchasing a replacement spring.


To mount this spring, you will need hangers, a suspension bolt, and possibly a spring keeper bolt, depending on the design of the rear hanger. If you are simply replacing a spring, you may still have hangers welded onto your trailer, but it would be wise to replace the bolts as they can experience wear. It is also recommended that you replace the other leaf spring in your setup at the same time. Because springs can sag and elongate as they wear, this new spring may not exactly match the old one, and the alignment of your trailer could be affected.


If you are fabricating a trailer, you will need to purchase a hanger kit for installation. To determine the type of hanger kit that you need, you must know the specific type of leaf spring that you have, as well as your axle capacity. Depending on the hanger kits used with them, springs can be configured to work for single-, tandem- or triple-axle applications. Hangers and other suspension components can also be purchased separately if there isn't a complete kit that works for your setup.



UNA-179 Universal Group Slipper Trailer Leaf Spring - 4 Leaf - 1,000-lb Capacity

Replaces WIH4





Customer Satisfaction Score:

Ratings & Reviews

4.8

629 reviews
Slipper leaf spring acts as part of a trailer's suspension system by providing an attachment point for a 2,000-lb axle. Spring flexes to resist shock and also ensures a smooth ride. Includes bushing with 9/16" inner diameter.

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See what our Experts say about this Universal Group Trailer Leaf Springs

  • Difference Between etrailer e69SR and Universal Group SP-179275
    Hi Ross; the # SP-179275 and # e69SR are identical. The only real difference between the two slipper springs is going to be the cost. Since there will be no difference in performance in salt water I would say get whichever one is cheaper.
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  • Hanger Kit to Install Leaf Spring on Trailer that Has Slipper Springs
    You could pretty easily install the springs you have but you will need to use a single axle trailer hanger kit like part # APS4 as the bushing sizes and hangers you have now won't work with the spring you have part # SP-113275.
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  • Recommended Replacement 1-3/4 Inch Wide Leaf Springs for a Boat Trailer
    Thanks for the picture and all of the information! Those dimensions do not match up to a leaf spring we currently have but I do have a close option which I think will work. When leaf springs are measured for replacement we ask people to jack the trailer up, on one side, to take the weight off of the springs. Over the years the springs will stretch out and a 10 year old trailer could very likely have started out with a shorter leaf spring. Another way to accurately measure is to go from...
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  • Are Radius End And Flat End Slipper Springs For A Trailer Interchangeable?
    The only difference between the Flat and Radius end slipper springs is the shape of the end of the spring with the radius having an arch and the flat being flat as you can see in the included pictures of the Radius End # SP-179275 and Flat End # e29SR. The springs are interchangeable but you will want to make sure that the length from the center of the spring eye to the end of the spring is the same, and make sure the spring matches the axle rating of the axle on your trailer.
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  • Is the Leaf Spring part # SP-179275 Sold Individually
    The Leaf Spring part # SP-179275 that you referenced is sold individually. If you needed a pair for your trailer you would need to order a quantity of 2. I attached an install video for this spring for you to check out as well.
    view full answer...
  • Replacing Slipper Springs with Double-Eye Springs
    If you are looking to replace your flat-end style slipper springs with a radius-type, you can use the same hangers you have only if they will accept the same size bolt as the radius-type springs. Otherwise you will need to get a new set of hangers and install them in place of the old ones. Also, you will want to replace the bolt as it is likely worn from the slipper spring. If you have a 2,000 lbs axle, you can use the 4-Leaf Slipper Spring with Radius End # SP-179275. This has an eye...
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  • Determining Correct Replacement Slipper Spring For Dual Jet Ski Trailer
    I would be happy to help you find the correct replacement slipper leaf springs for your dual jet ski trailer, but you will need to identify the axle rating of your axle and the width of your slipper spring. To find the axle rating you will want to check the axle tag located on the center of the axle, as it will have the axle rating listed. If the axle tag is missing you can use the GVWR of the trailer divided by the number of axles to get a rough idea. For example if your trailer has...
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  • Picking Out Replacement Leaf Springs for 2001 Coleman Utah Pop Up
    Looks like you have slipper springs on your 2001 Coleman Utah pop up. We have replacement slipper springs available like the # e29SR which is 30 inches long and for 1,800 lb axles or the # SP-179275 which is 24-5/8 inches long and for 2,000 lb axles. These are both 1-3/4 inches wide which is the most common width for lighter duty applications like yours. If you can get me the axle capacity you need, the length of the springs, and the width I can see if we'd have a direct replacement or...
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  • What is the Difference Between Double Eye Leaf Springs and Slipper Leaf Springs
    The difference is found in the application. The Slipper Spring styles, like part # SP-179275, are intended for use with more heavy duty applications, while the Double Eye styles, like part # e77SR are used to provide a more comfortable ride. The part # e77SR that you referenced will be the correct fit if your current leaf springs are 26 inches long from the center of the attachments points (usually known as eye-center-to-eye-center). You might also still be needing a U-Bolt mounting...
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  • Are there Bolt-On Hangers for Trailer Leaf Spring Suspension
    We do have a couple of bolt-on spring hangers # CE14017G and # CE14016G but they are designed for slipper springs and not double-eye springs like # e77SR. Its not likely that professional welder would charge that much. You might be able to find one locally via an iron workers union near you. For u-bolts for your 1-1/2 inch square axle you can use # SP01-120 for 2 u-bolts and 4 nuts. For a u-bolt plate you can use # 115983. For a hanger kit you could use # APS1. Now what you could do is...
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  • Replacing Suspension Hardware For Harbor Freight Single Axle Trailer With Slipper Springs
    The first thing you will need to determine is what the weight capacity of the trailer is. There should be a plate or sticker on the trailer or on the axle with those numbers. We offer a 2-leaf slipper spring, part # SP-179275, for 2,000-lb axles. I have attached a drawing of a leaf spring with the dimensions for the SP-179275 leaf spring you can check out. These springs measure 1-3/4 inches wide and have an eye diameter of 9/16 inch. The U-bolt mounting kit for these springs is part...
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  • How To Calculate the Weight Capacity Needed For Trailer Leaf Springs
    To determine the correct springs you will need to know a few variables to ensure that you do not damage your trailer. You have the first variable being the load or as you suggest a 1,000lb raft. Next you need to add the weight of the trailer frame and all brackets and boards on the trailer. You will not add the axle weight as that is un-sprung weight. Say the trailer frame and components are 500lbs. This puts the un-sprung weight at 1,500lbs. Next you will need to ensure that the load does...
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  • Slipper Spring Recommendation for a Kayak Trailer
    All things being equal there really isnt an advantage to going with one over the other, its just that when you get to the heavier capacities you only see the slipper style. I would recommend either for you, but more importantly you want to pick the spring set that best matches the capacity of what you plan on towing. In that case I would recommend the 2-Leaf Slipper Spring for 1,000-lb Trailer Axles # SP-177275 since it has the closest capacity at 1,000 lbs per axle. Since your trailer...
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  • Replacement Leaf Springs for a 1,500 Pound Boat Trailer
    The GVWR is the gross vehicle weight rating which is the most that the trailer can weight when loaded and ready to tow. Since that figure is 1,560 pounds it is likely that the axle on the trailer is a 2,000 pound axle. That would mean you need to look at leaf springs rated for 1,000 pounds each. There are 2 types of trailer leaf springs that we carry: double-eye and slipper. Double-eye springs have an eyelet on each end whereas slipper springs have one just on one end and sort of a hook...
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  • Recommendation For Softening The Ride Of Small Trailer Carrying 2 or 3 Kayaks
    I may have a solution that will save you some money and work. I spoke with our tire expert and his suggestion was to lower the tire pressure a little until you are comfortable with the way the trailer handles and rides. We always recommend using the maximum tire pressure and to air the tires up when they are cold. This is to make sure the tires are capable of handling the maximum load they are rated for. In your case, since you said you are limiting the load you plan on carrying, you...
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  • Recommended 2000lb Axle For Harbor Freight Trailer
    I would be happy to help you find the correct replacement axle for your harbor freight trailer. The CE Smith U-Bolt Kit for Mounting 2,000-lb, Round Trailer Axles - 4" Long U-Bolts - Zinc # CE23000, 4-Leaf Slipper Spring w/ Radius End for 2,000-lb Trailer Axles - 24-5/8" Long # SP-179275, Kenda KR25 ST145R12 Radial Trailer Tire with 12" Aluminum Wheel - 4 on 4 - Load Range D # AM31208, and Dexter Trailer Axle with Idler Hubs - 4 on 4 Bolt Pattern - 60" Long - 2,000 lbs # 20440I-ST-60 are...
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  • Replacement Leaf Spring for 1987 Shoreline Boat Trailer 3000 lb
    The most important thing to match when replacing trailer leaf springs is the weight capacity. Which for a trailer that weighs 3,000 lbs I'd recommend going with 3,700 lb axle springs like # SP-040275 which are 30 inches long. This means you'll need to move out your old hangers wider which we have replacements with # 115706S.
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  • How to Determine Load Capacity of Trailer Suspension
    We do not recommend that you exceed your trailer's carrying capacity. You will be limited to your axle's rating. The 3-leaf slipper springs, # SP-039275, that we offer measure 24-1/4" long x 1-3/4" wide. These springs are designed for use on trailers with 1,500-lb axles. If your axles are only rated for 1,500 lbs you would be limited to that. I have included a link to our 2000 lbs axles and a FAQ article on trailer suspension systems for you to check out.
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  • Replacement Slipper Springs for 1985 Harding Boat Trailer
    I do have options for you but exact replacements for old boat trailers are hard to come by. In the majority of cases, items will need to be altered for an exact fit which I assume is what is going to need to be done on your trailer as well. We don't have a slipper spring that is 1-3/4" wide x 28" long (center of eye to end of spring) with a 2,500, 3,000, or 3,500 lb capacity. However, leaf springs will fatten out over time which means the leaf spring that was originally installed on the...
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  • Leaf Spring Recommendation for Trailer with Slippers Springs that are 24-7/8 inches
    When picking out leaf springs there are two important things needed. You first need to get a spring that is rated for the weight of your trailer and then get one that is the proper length. Since you sent us a drawing that shows your slipper springs being 24-7/8 inches in length what you would need to do is determine what axle capacity you need. For a 2k axle you would need is the part # SP-179275 or for 1k axle part # SP-177275. Or for 1,500 lb axle you would need part # SP-178275.
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  • Dimensions of Double-Eye and Slipper Trailer Leaf Springs
    If you refer to the linked diagram for the double-eye leaf spring # e27SR that you referenced you'll see that we include two dimensions to the halfway point (lengths A and B) which differ. Dimension B is longer than dimension A since B follows the curve of the spring stack. Usually the straight eye-to-eye dimension is the one used to select a new spring. With a slipper type spring like # SP-179275 (shown in the other diagram) the same two dimensions are labeled as A and D and again these...
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  • Replacement for 26-1/2 Inch Long Slipper Springs
    How are you measuring your old slipper springs? There are a few different ways which is why I ask. If you take a look at the attached photo you can see the different methods. Please let me know which points you are measuring from in addition to the width of the spring, and axle capacity on your trailer. With that in mind it is also important to note that a leaf spring will flatten over time which will then in turn cause them to be longer than they were when originally installed on the...
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  • Needing Replacement Slipper Springs for Older Cox Boat Trailer
    None of the slipper springs we offer meet the dimensions you provided. You'll probably need to get a set of springs of the proper capacity and relocate the spring hanger and slipper. Given your axle diameter, you most likely have have a 2000 lb axle. For spring hangers, you'll want to use a front hanger that match the height of your existing spring hanger. I'll link you to our selection of slipper spring hangers. As far as the axles go, unfortunately none of the off-the-shelf axles...
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  • Correct Slipper Spring for my 16 ft. Aluminum Jon Boat Trailer
    Yes as long as the dimensions are the same you will have no issues with using the 4-Leaf Slipper Spring w/ Radius End part # SP-179275. Most bare 16 ft jons come in under 500 lbs. so the capacity will be perfect for you even if you load it down with gear. I have attached the installation video I made on the springs for you to check out.
    view full answer...


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Info for this part was:

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