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KYB 565121 MonoMax Gas Shock

Free shipping on orders over $29.99

$72.70

$ 28 .99 $28.99

In Stock

About this item

  • Maximum performance upgrade with up to 40% more damping performance than standard shock absorbers
  • Perfect solution when you need to upgrade suspension performance on your Ford truck
  • Truck monotube design outperforms all other standard shock absorbers
  • Zinc-coated, stainless steel piston ring provides a positive seal in the most extreme conditions
  • Rubber boot to protect the shaft and keep dirt and debris away from the seals


Tough conditions demand tough truck shocks. The large bore KYB MonoMax provides the additional stability that heavier, more powerful or high center of gravity vehicles demand. The KYB MonoMax is a heavy duty monotube shock absorber that provides the most handling, control and durability of any KYB shock; and it’s just for trucks. The MonoMax’s tough design automatically adjusts to driving conditions with fade-free performance. The KYB MonoMax has an outstanding reputation for vehicles that do real work, go off-road, tow a trailer or haul heavy loads. It uses a work-ready, zinc-coated steel piston ring and includes an off-road dust boot.


Kirtland S.
Reviewed in the United States on February 29, 2024
Just installed these on my 2015 super duty crew cab 4wd Platinum. Shocks have that OEM ride feeling. Truck rides and handles great.
Kevin Hembree
Reviewed in the United States on September 14, 2023
They are small diameter shocks, half the size of my Rear KYBs, or the RS9000 they replaced, haul a 28 ft bumper pull toy hauler with a utv rack in the bed with a KRX1000 on it, they work well for a bit when cold, but on long drives 6 hours plus they fade and loose their rebound, if you get out and feel the shock they are hot, in my opinion there isn’t enough oil volume to keep them from fading, the rear KYB does fine, as for the ride empty they are stiff but not horrible, it’s what I expected to get with KYBs description of them, if you do a lot of unloaded miles I would pass on them or get the RS9000, they are adjustable and I got over 150000 miles on them and on full stiff they were spot on for towing6-8-2024 Already blew the seals out of the front shocks, and one rear, really wouldn't recommend them
Bill D
Reviewed in the United States on August 20, 2023
These shocks are stiff but that’s what I needed for my truck. I was missing upper bushings and top plate be sure and check for all parts before starting I had to use parts off of my old shocks
me
Reviewed in the United States on July 14, 2022
Very small diameter, too small I'd say for a 1 ton Ford 4x4, typically you'd want much larger diameter body and armature to resist bending on the trail.Street manners are good, improved handling and reduced bounce over washboard roads.Will update if the opinion changes after extended use.
Customer
Reviewed in the United States on October 13, 2022
Everything in box and was complete. Installed with out a problem
Dan Dziuba
Reviewed in the United States on September 15, 2020
Just installed on my 2008 f350 powerstroke, crew cab short box... stock height. You don't realize how bad your shocks get, until you replace them. The truck rides like it should. Stiff, but comfortable. Absorbs small stuff beautifully, no more cab roll, no more nose dive when braking. Difficult to compress when installing, two people would have been easier.Couldn't decide between these or bilstein 5100. Extremely happy with this purchase so far... time will tell.This is a 8k pound truck. If you want it to ride like a Cadillac.... buy a Cadillac.
Joel R. Hellerman
Reviewed in the United States on October 23, 2018
Had them installed and so far they work great with no issues.
Kindle Customer
Reviewed in the United States on March 30, 2017
Way too stiff even for a 1 ton. I put them on my 350 ford and now it's bouncy and rides like s##t. Actually ordered another set because I thought something was wrong with them.
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