Keep your class 3-6 commercial truck or bus riding controlled and stable with the Monroe Magnum Suspension Shock Absorber 66626, a gas-charged unit designed to handle high-mileage and severe-use applications. It installs in the front or rear suspension position on trucks and buses including the 2003-2009 Chevrolet C4500 Kodiak, 1997-2009 Chevrolet C6500 Kodiak, 1993-1998 Chevrolet and GMC B7, 1997-2002 GMC T7500 and 1994-2011 Isuzu FVR — see the "Vehicles it fits" section for the full list of applications.
- Nitrogen gas-charge: helps maintain tire-to-road contact by reducing aeration and shock fade for improved ride and handling.
- 10-stage valving: tuned to each vehicle to adjust to road extremes, while the larger 1-3/8-in. bore provides more efficient damping control on most applications.
- All-weather fluid & reserve tube: special additives assist with extreme temperatures and help reduce oil breakdown, and a 2-in. or 2-1/4-in. reserve tube holds more fluid when required.
- Built to last: shouldered and bonded bushing with sleeve protects against bushing walkout, with arc welds up to 360° for durability.
A PTFE-coated bearing reduces friction between the rod and rod guide, and the nitrocarburized piston rod is designed for a longer service life on most applications. Backed by Monroe's 90-day Risk Free Ride Offer and Limited Commercial Warranty.
Interchange: 50787 · HD12140561 · 15174902 · 22064232 · 22064233 · 88082686 · 88982686 · 98321912 · 85049 · 85071 · 9161028 · 8220642320 · 8983219121 · 660187 · 660187MT · M85071 · AMS660187 · 57366626 · 170263
Product information is for general reference and may contain errors. See our Disclaimer.
This part cross-references / interchanges with the following part numbers:
50787, HD12140561, 15174902, 22064232, 22064233, 88082686, 88982686, 98321912, 85049, 85071, 9161028, AMS660187, 8220642320, 8983219121, 660187, 660187MT, M85071, 66626, 57366626, 170263
Frequently Asked Questions
What vehicles does the Monroe Magnum 66626 fit?
It fits a range of class 3-6 Chevrolet, GMC and Isuzu trucks and buses, including the 2003-2009 Chevrolet C4500 Kodiak, 1993-1998 GMC B7 and 1994-2011 Isuzu FVR. See the "Vehicles it fits" section for the complete list.
Does this shock mount in the front or rear?
The catalog lists the 66626 for both front and rear suspension positions on the covered applications. Confirm the correct position for your vehicle using the "Vehicles it fits" section.
Is the Monroe Magnum 66626 gas-charged?
Yes. It uses a nitrogen gas-charge designed to help maintain tire-to-road contact by reducing aeration and shock fade for improved ride and handling.
What are signs my shock absorber may need replacing?
Excessive vibration, bouncing, poor ride control, uneven tire wear or fluid leaking from the shock body can indicate a worn unit. Have the suspension diagnosed before replacing.
Should I replace shocks in pairs?
This listing is for one shock absorber. Replacing shocks as a matched set on the same axle is recommended for balanced, even ride control.
