• 4.18124 Hyperflex Master Kit - F250 Super Duty - 4WD
  • 4.18124 Hyperflex Master Kit - F250 Super Duty - 4WD
  • 4.18124 Hyperflex Master Kit - F250 Super Duty - 4WD

Hyperflex Master Kit - F250 Super Duty - 4WD

Part Number: 4.18124
Manufacturer: Energy Suspension
Rating 10


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Price: $224.99

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Hyperflex Master System Kit
It's Energy's System To Get The Very Maximum In Performance and Durability From Your Vehicle!

Master Suspension Bushings Kit Ford F250 Super Duty 4WD

1999 - 2004 Ford F250 Super Duty - 4WD
  • Front Leaf Spring Bushings - 4.2148
  • Front Sway Bar and Endlink Bushings - 32mm - 4.5186
  • Front Track Rod Bushing Set - 4.7128
  • Rear Leaf Spring Bushings - 4.2147
  • Rear Sway Bar and Endlink Bushings - 30mm - 4.5187
Performance Polyurethane Master Bushing Sets
  • Get real performance, for both on the road and off.
  • Popular performance car, truck and SUV applications.
  • A real must for competition use, or just for that "seat-of-the-pants" fun!
  • Increases vehicle stability and control as well as durability.
  • Reduces wheel hop and traction loss.
  • Proven for many years, by both professional and amateur racers alike.
  • Both restores and improves better than new!
  • Made of Energy's HYPER FLEX performance polyurethane.
  • Heavy duty metal components are used, for increased strength, when applicable
  • One Set Will Cover the Left and Right Side



Front leaf spring bushing set: 4.2148

  • 4 2417 Main eye bushings
  • 2 15.10.412.39 Sleeves (1.250”x0.750”x3.500”)
  • 4 2421 Rear eye bushings
  • 4 15.10.397.39 Sleeves (1.000”x0.640”x3.535”)
  • 4 2450 Shackle eye bushings
  • 2 9.11101 Grease
  • 1 17040 Instruction sheet

Front sway bar bushing set: 4.5186

  • 2 5763 Front 32mm(1-1/4”) bushings
  • 4 2592 Endlink bushings, Bar end
  • 4 2593 Endlink bushings, Frame end
  • 1 9.11108 GreaseTube
  • 1 17039 Instruction Sheet
  • 4 Washers (2.000”x0.510”x0.120”)
  • 4 Sleeves (0.750”x0.480”x1.960”)

Front track rod bushing set: 4.7128

  • 2 8327 Welded Arm bushings
  • 2 8268 Cast Arm bushings
  • 2 15.10.446.39 Sleeves (1.250”x0.807”x1.740”)
  • 1 17433 Instruction Sheet
  • 2 9.11108 Grease

Rear leaf spring bushing set: 4.2147

  • 4 2417 Main eye bushings
  • 2 15.10.412.39 Sleeves (1.250”x0.750”x3.500”)
  • 4 2421 Rear eye bushings
  • 4 15.10.397.39 Sleeves (1.000”x0.640”x3.535”)
  • 4 2422 Shackle eye bushings
  • 4 9.11101 Grease
  • 1 17040 Instruction sheet

Rear sway bar bushing set:4.5187

  • 2 5764 Rear 30mm bushings
  • 8 4902 Endlink bushings
  • 4 15.10.342.39 Sleeves (0.687”x0.500”x1.250”)
  • 4 Washers (1.750”x0.500”x0.108”)
  • 4 Bolts (12mm x 65mm)
  • 4 Nuts (12mm nylock)
  • 1 17073 Instruction Sheet
  • 2 9.11108 Grease.

 energy logoEnergy Suspension warrants its products against defects in workmanship and material for 24 months when used on passenger cars and light trucks. Products that have been abused, altered, or incorrectly installed are not covered. Energy Suspension will replace defective products or component parts, if inspection for factory personnel determines the part to be defective. Warranty replacement covers only the product. Labor claims, time loss, or freight charges will not be honored.
Alternate Part Numbers for 4.18124
  • ENE-4.18124G
  • ENE-4.18124R
  • ENS-4-18124G
  • ENS-4-18124R
  • 418124G
  • 418124R
  • hyper flex kits
  • hyper flex package

Energy Suspension 4.18124

Product Reviews for Bushing Replacement Kit 4.18124

Energy Suspension 4.18124

5 out of 5 based on 10 user reviews. Write a Review

Im very happy with Energy Suspension bushings. They tightened up the suspension and the truck tracks and steers better than stock. After two years, they are holding up well.
5 out of 5 - Review 2 Years Later - everything is tight and working well.
David Lehrian - . Energy Suspension 4.18124
I havent replaced the leafspring bushings yet because I need new leafsprings. However, everything else went smoothly. I could feel improvements in my trucks handling right away. With a little creativity and basic tools, replacing the bushings was fairly easy. Order the extra lube and apply generously, and you shouldnt have too much in the way of trouble in replacing the old bushings with new.
5 out of 5 - Review 2 Years Later
Allen Eriksen - . Energy Suspension 4.18124
No issues whatsoever. Still going strong.
5 out of 5 - Review 2 Years Later
David C Barham - . Energy Suspension 4.18124
Ive only had the opportunity to install the sway bar and end link bushings so far, Im happy with the way the end link bushings are set up over the stock set up. Ive had to replace the stock end links several times and I dont for see having to replace them again. I still need to install the track bar and spring bushings and will be doing this sometime over the summer. I believe I will be very happy with the overall performance with this kit. " time will tell ".
5 out of 5 - Very Good Quality
Douglas Robert - . Energy Suspension 4.18124
These parts are hard to put in, but that was no fault of yours. The parts fit great and were delivered very fast, thanks.
5 out of 5 - Great
Anthony Reynolds - . Energy Suspension 4.18124
easy to install and good quality parts. well pleased with product and ease of installation
5 out of 5 - very good product
zachary howell - . Energy Suspension 4.18124
This kit has worked awesome on my truck and made a world of difference. Those clunks and knocks that were once heard in my front end, and the squeaks from my leaf springs are gone. I actually went out and purposely hit bumps and what not to try and make my front end make some noise and it took some effort. I love it! I did have to purchase a shop press to install them (which I have always wanted to buy anyways) but with the various projects that I work on I can justify the cost of the 20 ton press that I purchased for $150 to do the job, which worked perfectly. If you don't have a press you are going to have to take your parts to a shop and have the old bushings pressed out, and the new ones pressed in for you, especially the new track bar bushings. Before I started this project I researched the parts on various forums and saw on one forum that one guy said that he loved the new bushings except for the track bar bushings that didn't fit, to which the next comment on the forum was another guy telling him that the new track bar bushings needed to be pressed in and that's why he didn't think they fit right. After installing these bushings I can see where the guy would have thought that the track bar bushings were not right for the kit because they were tricky to press in (you have to have them perfectly straight to squeeze down in and it took me a couple of tries to get them in) but I can tell you that they are correct and fit perfectly once they have been pressed in. I took my time doing this project to make sure I do things precisely as I typically do when working on my own vehicles and was easily able to complete this project in 2 days. With the proper tools, a shop press and a helping hand (I did mine all by myself) this bushing replacement could easily be done in less than a day. Overall, a great product that I would definitely recommend and I will definitely be purchasing Energy Suspension products for all of my other projects in the future.
5 out of 5 - Extremely satisfied
Randall D. Smith - . Energy Suspension 4.18124
Parts were very easy to install. The kit is very well made. It has stopped my F-250 from wandering, improved the ride, and made the steering so much better. Its like having a totally new truck. I would not hesitate to install these parts in any vehicle. Energy suspension was very helpful if you would have any questions, and the service and shipping time were excellent. I am very well pleased.
5 out of 5 - excellent Parts
Emery Koval - . Energy Suspension 4.18124
I installed this kit along with new shocks on my 2003 Ford Powerstroke. The truck didn't handle the road anymore, made noise, and didn't ride very well. The kit stopped the noise and made the truck ride like new again. Very good product! Thanks...
5 out of 5 - Great Product
Forest Bramwell - . Energy Suspension 4.18124
Great fit and high quality product. I am going to buy other energy suspension products for my other vehicles.
5 out of 5 - High quality
MATT CHACON - . Energy Suspension 4.18124