Shock Absorbers

Heavy Duty Shock Absorbers
for Truck, Trailer & Severe Duty Applications

For more than 30 years America’s heavy duty truck, bus and severe service fleets have trusted Marathon Brake Systems to provide Best-in-Class friction materials that deliver stopping power and the longest service life. Now Marathon is introducing a complete line of heavy duty shock absorbers for these same fleet applications. Marathon shock absorbers are designed and built to provide a comfortable, smooth ride and reduce vibrations from suspension systems. These hydraulic shocks feature rugged construction with reinforced welds, tough end mounts and durable piston seals to provide consistent performance over the life of the shock.

Top-Performing Hydraulic Shock Design

Hydraulic stop design outperforms market leader
Seals and valves facilitate piston dampening in both up and down movements
Smoothness of vibration absorption improves comfort and durability
Consistent performance over life of shock improves tire wear and lessens component wear

High Performance Hydraulic Oil

High viscosity oil provides excellent characteristics through all types of weather and extreme heat generated in severe service applications.

Marathon Shock Information

Marathon Shock Cut-Away Marathon Shock Advantages Part Number Cross-Reference Issues with Worn Shock Absorbers

Marathon Shocks Deliver

Heavy duty design for long service life
Models for wide range of over-the-road and
severe duty applications
Tough, high tensile strength end mounts
Reinforced welded perimeter and end mounts
for greater durability
Chrome finished tempered steel piston rods
protect from corrosion
High viscosity hydraulic oil for consistent
performance over life of shock
Durable piston seals for optimum performance
and life
Design offers increased hydraulic oil
capacity to protect internal components
Greater driver comfort and safer driving
Prevent premature tire wear
Protect vibration sensitive components

Hydraulic Bumper Detail

During the extension movement, the shock’s hydraulic stop design has the top hole covered by the inner cylinder head (shown on right) creating a layer of oil that protects the shock from topping out and damaging components.

Marathon Shocks
Designed & Built for the Long Haul

Marathon Shock Advantages

Welded Perimeter for Closing System

Reinforced Projection Welded Zones

8,000 lbs. maximum tensile strength of mounting

End Cap - Outer Tube Welding

12,000 lbs. maximum tensile strength (Assembly tested under 10-15 psi air pressure submerged in water without leaks)

Super Chrome Piston Rods

Temper hardness of 30-55 Rc
Chrome plated surface hardness 67 Rc min., 0.0004" min. thickness
Dehydrogenized at 218°C for 70 minutes
Surface finish of Ra:6μ" and Rz:45μ"
Salt spray test for 24 hours minimum

Find Marathon Shock Part Number

Find the equivalent Marathon Shock Part number by either selecting the Manufacturer and then the part number or by entering the part number in the text box.