Monroe Shocks & Struts Suspension Shock Absorber P/N:66886

Keep high-mileage work trucks riding steady with the Monroe Magnum Suspension Shock Absorber 66886, a gas-charged front and rear shock built for the demands of class 3-6 commercial vehicles. It's a direct-fit replacement for a wide range of medium- and heavy-duty applications, including the 1973-1980 Chevrolet C60, 1989-1999 International 9300, 1987-2020 Kenworth T800, 2019-2022 Mack Pinnacle and 2007-2009 Workhorse R26 — see the Buyer's Guide tab for the full list.

Designed to handle high mileage and severe-use service, it helps reduce excessive vibration when worn-out units are replaced for quicker response and a more comfortable ride.

• Consistent ride: All-weather fluid with special additives assists in extreme temperatures and helps reduce oil breakdown, while a 2-in. or 2-1/4-in. reserve tube holds more fluid.
• Exceptional handling: 10-stage valving tuned to each vehicle adjusts to road extremes, and a larger 1-3/8-in. bore provides more efficient damping control on most applications.
• Strong and durable: A shouldered bushing and bonded bushing with sleeve protect against bushing walkout, and arc welds up to 360° add durability.
• Longer service life: A PTFE-coated bearing reduces friction between the rod and rod guide, and a nitrocarburized piston rod supports durability on most applications.

The nitrogen gas-charge helps maintain tire-to-road contact by reducing aeration and shock fade, and a robust hydraulic lock-out helps prevent over-extension of air bags, piston top-out and damage to the seal assembly on most applications. Backed by Monroe's 90-day Risk Free Ride Offer and Limited Commercial Warranty.