4.2121 | Front Leaf Spring and Shackle Bushings 80-98 F250 F350

  • 4.2121 360image 1
  • 4.2121 Front Leaf Spring and Shackle Bushings - w 2inch I.D.
  • 4.2121 Front Leaf Spring and Shackle Bushings - w 2inch I.D.
  • 4.2121 Front Leaf Spring and Shackle Bushings - w 2inch I.D.
  • 4.2121 Front Leaf Spring and Shackle Bushings - w 2inch I.D.
  • 4.2121 Front Leaf Spring and Shackle Bushings - w 2inch I.D.
  • 4.2121 360image large 1

Front Leaf Spring and Shackle Bushings - w 2inch I.D.

Manufacturer: Energy Suspension
Part Number: 4.2121

Color: (?)
Black
Red

Exclusive for DST Customers: (?)
Free Lifetime Warranty Upgrade

Energy Suspension 2019 Mail-In Rebate Offer: (?)
Get $25 Back with any $200+ Purchase, or $40 back with any $400+ Purchase on Energy Suspension Products
Price: $69.36

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  • 8 - 2055 - Front
  • 4 - 2070 - Front Shackle
  • 4 - 15.10.09.39 (.750OD x .562ID x 3.500L)
  • 2 - 15.10.80.39 (.875 x .625 x 1.800)
  • 1 - 9.11102 - 10 Grams Grease Package
  • 1 - 17040 - Instructions For Spring Eye
  • Energy 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.
Cross Reference from 4.2121 to 61012
Prothane 61012
Polyurethane.
Price: $55.77
Warranty: Lifetime Warranty

FitmentFront Leaf Spring and Shackle Bushings - w 2inch I.D. 4.2121 fits these vehicles:
Details
Polyurethane Front Leaf Spring Bushings
For high performance applications, the combination of heavy duty or performance leaf springs and HYPER FLEX performance polyurethane spring bushings deliver the maximum benefit.

4.2121 | Front Leaf Spring and Shackle Bushings 80-98 F250 F350

Polyurethane Front Leaf Spring Bushings
  • Adds a dramatic amount of performance and durability to any vehicle!
  • Improves vehicle handling, cornering and overall control.
  • Helps the vehicle be in control when maneuvering through turns, during standing start accelerations, braking, even over bumps and berms.
  • Made of Energy's HYPER FLEX performance polyurethane to add performance and durability.
Footnotes
  • One Set Will Cover the Left and Right Side

Energy Suspension HyperFlex Leaf Spring and Shackle Bushings

Vehicles with a leaf spring and shackle set up lean heavily on the springs to take the shock out of a bump. Not only does a leaf spring reduce the force of a bump that you feel, but it also evenly distributes the load across the chassis instead of the whole load pressing down on one point. Your ability to get to point A to point B without scraping the pavement is heavily dependent on the leaf spring and shackle bushings which mount the spring to the frame. Energy Suspension's Hyperflex polyurethane is a stronger material for the mounting points of a leaf spring and shackle. Polyurethane leaf spring bushings are able to handle the stress from the suspension and are not vulnerable to road grime. With Energy Suspension's polyurethane, you can protect your vehicle's ability to carry a load, and your bumpy free ride, for years to come.

Energy Hyperflex Leaf Spring
Energy Hyperflex Leaf Spring Lifespan

Replacing the Faulty Rubber

O.E. leaf spring and shackles utilize a soft rubber bushing to mount the spring to the frame. The rubber is great for reducing the noise and vibrations from being transferred into the cab. Unfortunately, rubber bushings have a short lifespan. Once the rubber fails, due to wear and tear or road grime, a leaf spring's effectiveness is severely reduced. Meaning you will experience a very bumpy ride, the vehicle's ability to carry a load or tow is hindered greatly and you'll experience a loss of control.

Be sure to use Formula 5

A leaf spring bushing rotates a lot against the metal shell, so make sure you grease it well with Energy Suspension's own Formula 5 Bushing Lubricant. Using plenty of grease is the best way to ensure a long lasting part without any squeaking. If you'd like some extra grease just in case, pick up an extra 3 pack or an 8 ounce tube.

Formula 5 Gif
Energy Suspension 4.2121

Product Reviews for 4.2121 | Front Leaf Spring and Shackle Bushings 80-98 F250 F350

5 Star (32)
97%
4 Star (1)
3%
3 Star (0)
0%
2 Star (0)
0%
1 Star (0)
0%
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Energy Suspension 4.2121

5 out of 5 based on 33 user reviews. Write a Review

A
verified_user

starstarstarstarstar" Very pleased "

The new bushings were simple to install and took no time at all.

verified_user Verified Buyer - - . Energy Suspension 4.2121 - 5 out of 5
W
verified_user

starstarstarstarstar" excellent "

Been using these for years. Wont use anything else. Have never had to repeat the job with Energy Suspension.

verified_user Verified Buyer - - . Energy Suspension 4.2121 - 5 out of 5
A
verified_user

starstarstarstarstar" Awesome , eliminated all squeaks and rattles ! "

Easy install , made a great difference in ride and handling .

verified_user Verified Buyer - - . Energy Suspension 4.2121 - 5 out of 5
C
verified_user

starstarstarstarstar" Review 2 Years Later "

The parts received have been working fine without any issues, problems or failures.

verified_user Verified Buyer - - . Energy Suspension 4.2121 - 5 out of 5

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question_answer Customer Questions and Answers


Question:
Will part number 4.2121 fit my 96 F350 4wd?
Answer:
Yes, part number 4.2121 will fit the 96 F350 4wd.

Question:
Will the 4.2121 fit on my 97 F350 with an 11 inch lift?
Answer:
The 4.2121 is only fitted for OE stock replacements on a 97 F350 with a 2 inch spring ID. We can not guarantee this bushing kit to fit on lifted vehicles.

Question:
Will part number 4.2121 work for both the spring eye and front shackle?
Answer:
Yes, part number 4.2121 will work for both the spring eye and the shackle.

Question:
Will this kit 4.2121 work on my 1997 Ford F250 2WD?
Answer:
The kit 4.2121 is an OEM stock replacements kit that is guarantee to fit a 1997 Ford F250 4WD ​Since you have a 2WD drive this will not kit will not work since there is a difference in the sleeve measurements.

Question:
Will part number 4.2121 do both the front and rears and the left and right sides?
Answer:
No, part number 4.2121 will only do the fronts, but it will do both the left and right sides.

Question:
Will part number 4.2121 fit in aftermarket leaf springs?
Answer:
No, part number 4.2121 is a direct stock replacement only.