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Monroe Gas-Magnum Shocks

$28.02 - $79.68
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  • Reduced shock fade compared to standard shock absorbers
  • Charged with nitrogen gas to reduce aeration and maintain road contact
  • Promotes a smooth, comfortable ride thanks to improved valving range
  • Sintered iron construction ensures superior durability
  • Self-lubricating fluid seal prevents excess wear
  • Sold individually
  • Limited lifetime warranty

One of the most well-known names in truck shocks and struts, Monroe's Gas-Magnum shocks offer a substantial improvement in ride quality over standard shocks. By using an improved valving range, these shocks are better able to absorb impacts and provide a quiet, comfortable ride for you and your passengers. Improved ride quality is further created by the shock absorber's oversize bore, which reduces shock fade during sustained travel over uneven terrain. By using a nitrogen gas charge, the Gas-Magnum maintains better contact with the road through reduced aeration of the shock fluid.

This shock absorber for trucks is a direct bolt-on replacement for your OEM shocks, requiring no modification. Upgrade to the Monroe Gas-Magnum shocks and reap the benefits of a bigger, more efficient shock.

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Spec Sheet
WarrantyLimited Lifetime
California Residents: Prop 65 Warning


Professional installation is recommend, but that doesn't mean you can't do it yourself! Monroe Gas-Magnum shocks alter your suspension and may require special tools. You should have your vehicle re-aligned once they are installed.



Tenneco Inc. warrants qualifying Monroe® products against defects and wear-out when used on private passenger cars and light trucks under normal operating conditions for as long as such original purchaser owns the vehicle on which they were originally installed.


  • Monroe® OESpectrum® Shocks and Struts
  • Monroe® Reflex® Shocks and Struts
  • Monroe® Quick-Strut® replacement assemblies
  • Monroe® Gas-Magnum® Shocks

Tenneco's obligation under this warranty is limited to replacement of the worn-out or defective product in accordance with this warranty. Cost of removal and installation are not included, and any incidental and consequential damages are excluded under this warranty, regardless of when the failure occurs. This warranty has no cash value. This warranty does not apply to products which have been modified, improperly applied or installed on vehicles used for commercial or racing purposes.

To make a claim under this warranty, return the worn-out or defective product with the dated original receipt to the dealer or retailer from whom it was purchased.

This warranty gives you specific legal rights, and you may also have other rights, which vary from state to state. Any implied warranties you may have under state law are limited to the same duration as this warranty. Some states do not allow limitations on how long an implied warranty lasts or do not allow the exclusion or limitation of incidental or consequential damages, so the above limitations and exclusion may not apply to you.

Tenneco will contact warranty-serviced consumers to conduct customer satisfaction surveys relating to product and warranty service. Survey activity will provide valuable feedback and help measure the level of consumer satisfaction in different markets.