Monroe Gas-Magnum
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Part Number: AM-858161068

Why Buy Monroe Gas-Magnum Truck Shock Absorbers?

The Monroe® Gas-Magnum® truck shock absorber is designed for mid to full size, hard working pick-up trucks and vans. These units provide firm control without a harsh ride. With up to twice the fluid capacity of standard 1" bore shocks, Monroe Gas-Magnum truck shocks work more efficiently with less effort.

The result: enhanced control with uncompromised ride comfort.

  1. All Weather Fluid: Contains special modifiers to reduce friction and ensure smooth rod reaction.
  2. Full Displaced Valving: Tuned specifically for each application, this valving automatically adjusts to road extremes to provide consistency and ride comfort.
  3. Sintered Iron Piston: Stronger than traditional metals, enhances durability for longer service life.
  4. Nitrogen Gas Charged: For improved ride and handling, helps maintain tire to road contact by reducing aeration.
  5. 2" Reserve Tube: More fluid for more consistent performance.
  6. 1-3/8" Bore: Lower operating pressure than standard 1" bore units.
  7. 5/8" Piston Rod: Heavy-duty nitrocarburized rod* for long service life.
  8. Special Seal: "Self-lubricating" fluid seal designed to retain gas without excessive wear or friction.

* ON NON-DUST SHIELD UNITS ONLY.

10 Year Warranty

This item is backed by our 10-year warranty. In the event this item should fail due to manufacturing defects during intended use, we will replace the part free of charge. This warranty covers the cost of the part only.

Please note: Any modifications to an item of any kind before contacting us will void any and all warranty coverage for this item. Please contact us before modifying the part so that we have the opportunity to correct the situation.


Vehicle Fit

  • 2011 Chevrolet Silverado 2500 HD Front Driver & Passenger Side 2 Piece Shock Absorber Set Monroe Gas-Magnum AM-858161068
  • 2012 Chevrolet Silverado 2500 HD Front Driver & Passenger Side 2 Piece Shock Absorber Set Monroe Gas-Magnum AM-858161068
  • 2013 Chevrolet Silverado 2500 HD Front Driver & Passenger Side 2 Piece Shock Absorber Set Monroe Gas-Magnum AM-858161068
  • 2014 Chevrolet Silverado 2500 HD Front Driver & Passenger Side 2 Piece Shock Absorber Set Monroe Gas-Magnum AM-858161068
  • 2015 Chevrolet Silverado 2500 HD Front Driver & Passenger Side 2 Piece Shock Absorber Set Monroe Gas-Magnum AM-858161068
  • 2016 Chevrolet Silverado 2500 HD Front Driver & Passenger Side 2 Piece Shock Absorber Set Monroe Gas-Magnum AM-858161068
  • 2017 Chevrolet Silverado 2500 HD Front Driver & Passenger Side 2 Piece Shock Absorber Set Monroe Gas-Magnum AM-858161068
  • 2018 Chevrolet Silverado 2500 HD Front Driver & Passenger Side 2 Piece Shock Absorber Set Monroe Gas-Magnum AM-858161068
  • 2019 Chevrolet Silverado 2500 HD Front Driver & Passenger Side 2 Piece Shock Absorber Set Monroe Gas-Magnum AM-858161068
  • 2011 Chevrolet Silverado 3500 HD Front Driver & Passenger Side 2 Piece Shock Absorber Set Monroe Gas-Magnum AM-858161068
  • 2012 Chevrolet Silverado 3500 HD Front Driver & Passenger Side 2 Piece Shock Absorber Set Monroe Gas-Magnum AM-858161068
  • 2013 Chevrolet Silverado 3500 HD Front Driver & Passenger Side 2 Piece Shock Absorber Set Monroe Gas-Magnum AM-858161068
  • 2014 Chevrolet Silverado 3500 HD Front Driver & Passenger Side 2 Piece Shock Absorber Set Monroe Gas-Magnum AM-858161068
  • 2015 Chevrolet Silverado 3500 HD Front Driver & Passenger Side 2 Piece Shock Absorber Set Monroe Gas-Magnum AM-858161068
  • 2016 Chevrolet Silverado 3500 HD Front Driver & Passenger Side 2 Piece Shock Absorber Set Monroe Gas-Magnum AM-858161068
  • 2017 Chevrolet Silverado 3500 HD Front Driver & Passenger Side 2 Piece Shock Absorber Set Monroe Gas-Magnum AM-858161068
  • 2018 Chevrolet Silverado 3500 HD Front Driver & Passenger Side 2 Piece Shock Absorber Set Monroe Gas-Magnum AM-858161068
  • 2019 Chevrolet Silverado 3500 HD Front Driver & Passenger Side 2 Piece Shock Absorber Set Monroe Gas-Magnum AM-858161068
  • 2011 GMC Sierra 2500 HD Front Driver & Passenger Side 2 Piece Shock Absorber Set Monroe Gas-Magnum AM-858161068
  • 2012 GMC Sierra 2500 HD Front Driver & Passenger Side 2 Piece Shock Absorber Set Monroe Gas-Magnum AM-858161068
  • 2013 GMC Sierra 2500 HD Front Driver & Passenger Side 2 Piece Shock Absorber Set Monroe Gas-Magnum AM-858161068
  • 2014 GMC Sierra 2500 HD Front Driver & Passenger Side 2 Piece Shock Absorber Set Monroe Gas-Magnum AM-858161068
  • 2015 GMC Sierra 2500 HD Front Driver & Passenger Side 2 Piece Shock Absorber Set Monroe Gas-Magnum AM-858161068
  • 2016 GMC Sierra 2500 HD Front Driver & Passenger Side 2 Piece Shock Absorber Set Monroe Gas-Magnum AM-858161068
  • 2017 GMC Sierra 2500 HD Front Driver & Passenger Side 2 Piece Shock Absorber Set Monroe Gas-Magnum AM-858161068
  • 2018 GMC Sierra 2500 HD Front Driver & Passenger Side 2 Piece Shock Absorber Set Monroe Gas-Magnum AM-858161068
  • 2019 GMC Sierra 2500 HD Front Driver & Passenger Side 2 Piece Shock Absorber Set Monroe Gas-Magnum AM-858161068
  • 2011 GMC Sierra 3500 HD Front Driver & Passenger Side 2 Piece Shock Absorber Set Monroe Gas-Magnum AM-858161068
  • 2012 GMC Sierra 3500 HD Front Driver & Passenger Side 2 Piece Shock Absorber Set Monroe Gas-Magnum AM-858161068
  • 2013 GMC Sierra 3500 HD Front Driver & Passenger Side 2 Piece Shock Absorber Set Monroe Gas-Magnum AM-858161068
  • 2014 GMC Sierra 3500 HD Front Driver & Passenger Side 2 Piece Shock Absorber Set Monroe Gas-Magnum AM-858161068
  • 2015 GMC Sierra 3500 HD Front Driver & Passenger Side 2 Piece Shock Absorber Set Monroe Gas-Magnum AM-858161068
  • 2016 GMC Sierra 3500 HD Front Driver & Passenger Side 2 Piece Shock Absorber Set Monroe Gas-Magnum AM-858161068
  • 2017 GMC Sierra 3500 HD Front Driver & Passenger Side 2 Piece Shock Absorber Set Monroe Gas-Magnum AM-858161068
  • 2018 GMC Sierra 3500 HD Front Driver & Passenger Side 2 Piece Shock Absorber Set Monroe Gas-Magnum AM-858161068
  • 2019 GMC Sierra 3500 HD Front Driver & Passenger Side 2 Piece Shock Absorber Set Monroe Gas-Magnum AM-858161068

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