SAVE 20% OFF ORDERS $100+ | ONLINE ONLY
USE CODE
FEB20
*
Exclusions apply.
✕
Advance Auto Parts Logo
Choose a Store
Product thumb
Product main large
Add A Vehicle to Check Fitment
How Would You Like To Get This Item?

Store Pickup

FREE
No Store Selected

Same Day Home Delivery

No Store Selected

Home Delivery

FREE for orders over $35

Standard Delivery Available

Curbside pickup is available at most stores
Loading...

TOP SELLERS

    AAP Flag
    Loading...
    (64)
    AutoCraft Car Cover, Grey, Fits Sedans 15' 1"-16' 8", Breathable, Non-Abrasive, Dustproof
    AAP Flag
    Loading...
    (5)
    AutoCraft SUV Cover, Blue 3 Layers, Fits SUVs 15'-19', Medium-Duty, Water Resistant, Outdoor Use
    AAP Flag
    Loading...
    (108)
    AutoCraft Car Cover, Blue 3 Layers, Fits Sedans 15' 1"-16' 8", Medium-Duty, Water Resistant, Outdoor Use
    AAP Flag
    Loading...
    (108)
    AutoCraft Car Cover, Blue 3 Layers, Fits Sedans Up to 15', Medium-Duty, Water Resistant, Outdoor Use
    AAP Flag
    Loading...
    (23)
    AutoCraft Car Cover, Grey, Fits Sedans Up to 15', Breathable, Non-Abrasive, Dustproof
    AAP Flag
    Loading...
    (29)
    AutoCraft Car Cover, Grey, Fits Sedans 16' 9"-19', Breathable, Non-Abrasive, Dustproof
    AAP Flag
    Loading...
    (3)
    AutoCraft Truck Cover, Blue 3 Layers, Fits Trucks 17.5'-19', Medium-Duty, Water Resistant, Outdoor Use
    AAP Flag
    Loading...
    (108)
    AutoCraft Car Cover, Blue 3 Layers, Fits Sedans 16' 9"-19', Medium-Duty, Water Resistant, Outdoor Use
    AAP Flag
    Loading...
    (45)
    AutoCraft Truck Cover, Grey, Fits Trucks 17.5'-19', Breathable, Non-Abrasive, Dustproof
    AAP Flag
    Loading...
    (1)
    AutoCraft Truck Cover, Grey, Fits Trucks 16'-17.5', Breathable, Non-Abrasive, Dustproof

Product Information

Product Details
Part No. 66884
Warranty Details (2 YR REPLACEMENT IF DEFECTIVE)
The Monroe Magnum shock absorber for class 3-6 vehicles is gas-charged for quicker response and a stable, more comfortable ride. Designed to handle the demands of high mileage and severe use vehicles, replace worn-out units with Magnum shocks to help reduce excessive vibration.

Product Features:
  • FOR HARDWORKING COMMERCIAL VEHICLES -- Designed to handle the demands of high mileage and severe use class 3-6 trucks and buses
  • FOR HARDWORKING COMMERCIAL VEHICLES -- Designed to handle the demands of high mileage and severe use class 3-6 trucks and buses
  • CONSISTENT RIDE -- All-weather fluid contains special additives to assist with extreme temperatures and help reduce oil breakdown while 2-in. or 2-1/4-in. reserve tube holds more fluid to improve performance (when required)
  • EXCEPTIONAL HANDLING -- 10-Stage valving, tuned specifically to each vehicle, adjusts to road extremes while the larger 1-3/8-in. bore provides more efficient damping control to provide consistency and a smooth ride (most applications)
  • STRONG AND DURABLE -- Shouldered bushing and bonded bushing with sleeve protects from bushing walkout for improved quality; arc welds up to 360 for durability
  • STRONG AND DURABLE -- Shouldered bushing and bonded bushing with sleeve protects from bushing walkout for improved quality; arc welds up to 360 for durability
  • BUILT TO LAST -- Robust hydraulic lock-out prevents over extension of air bags, top-out of the piston and averts damage to seal assembly (on most applications)
  • LONGER SERVICE LIFE -- Bearing with PTFE coating reduces friction between rod and rod guide combined with nitrocarburized piston rod provides durability and longer service life (most applications)
  • REDUCED NOISE, VIBRATION AND HARSHNESS -- Delivers exceptional control and isolates impact-related noise, vibration, and harshness under most driving conditions
  • IMPROVES PERFORMANCE -- Nitrogen gas-charge maintains tire-to-road contact for improved ride and handling by reducing aeration and shock fade
  • 10-stage valving: Reacts to wide range of driving conditions - on most applications
  • All weather fluid: Contains special modifiers to reduce frictions and ensure smooth rod reaction
Specifications
Compressed Length:
17.188 in

Dust Shield:
Yes

Dust Shield Material:
Metal

Extended Length:
27.953 in

Travel Length:
10.765 in

YOU MAY ALSO LIKE

    AAP Flag
    Loading...
    (2)
    Carquest Wearever New Brake Master Cylinder
    AAP Flag
    Loading...
    (1245)
    Rain-X 2-In-1 All Season Windshield Washer Fluid: Improved Water Beading, 1 Gallon
    AAP Flag
    Loading...
    (97)
    Road Runner 20 lb. Bag Of Ice Melt: Effective Down To -15 Degrees F
    AAP Flag
    Loading...
    (4083)
    Rain-X Latitude Wiper Blade: 26", Water Repellency 2-in-1 Premium Beam, Pack of 1
    AAP Flag
    Loading...
    (88)
    FRAM Extended Life All Vehicles Antifreeze 50/50 Ready-to Use, 1 Gallon
    AAP Flag
    Loading...
    (2115)
    Mobil 1 Oil Filter: Ideal for Synthetic Oil, Protection To 20,000 Miles
    AAP Flag
    Loading...
    (3961)
    Sea Foam Motor Treatment; Fuel and Oil Additive, for all Gas and Diesel Engines, 16 oz.
    AAP Flag
    Loading...
    (2115)
    Mobil 1 Oil Filter: Ideal for Synthetic Oil, Protection To 20,000 Miles
    AAP Flag
    Loading...
    (2972)
    Mobil 1 Extended Performance Full Synthetic Engine Oil 0W-20, 5 Quart
    AAP Flag
    Loading...
    (4083)
    Rain-X Latitude Wiper Blade: 22", Water Repellency 2-in-1 Premium Beam, Pack of 1
0 out of 5
0 Customer Reviews
Loading...
Loading...
Loading...
Loading...
Loading...
Displaying Reviews 1 - 5Back to Top

CUSTOMERS ALSO LIKED

    AAP Flag
    Loading...
    (885)
    Prestone Antifreeze and Coolant: 50/50 Ready To Use, Universal, Protects Against Corrosion, 1 Gallon
    AAP Flag
    Loading...
    (31)
    FRAM Extended Life All Vehicles Antifreeze Concentrate, 1 Gallon
    AAP Flag
    Loading...
    (815)
    DieHard Gold Battery: 35 Group Size, 640 CCA, 800 CA, 100 Minute Reserve Capacity, Maximum Starting Power
    AAP Flag
    Loading...
    (566)
    DieHard Gold Battery: 24F Group Size, 750 CCA, 875 CA, 130 Minute Reserve Capacity, Maximum Starting Power
    AAP Flag
    Loading...
    (792)
    Prestone Antifreeze and Coolant: Concentrate, Universal, Protects Against Buildup And Rust, 1 Gallon
    AAP Flag
    Loading...
    (132)
    Prestone Power Steering Fluid: All Vehicles, Anti-Wear Protection, 50k miles, 32 oz.
    AAP Flag
    Loading...
    (285)
    Permatex Water Pump & Thermostat RTV Silicone Gasket Maker, 0.5 OZ
    AAP Flag
    Loading...
    (77)
    Prestone Power Steering Fluid: All Vehicles, With Stop Leak, Restores & Conditions Seals, 50k miles, 32 oz
    AAP Flag
    Loading...
    (125)
    DieHard Platinum AGM Battery: 35 Group Size, 650 CCA, 810 CA, 100 Minute Reserve Capacity, Best For High Electrical Demands
    AAP Flag
    Loading...
    (684)
    Optima Battery: 35 Group Size, 720 CCA, 910 CA, 90 Minute Reserve Capacity
No results

TOP SELLERS IN THIS CATEGORY

    AAP Flag
    Loading...
    (1)
    Kat's Circulation Tank Heater; Thermostatically Controlled
    AAP Flag
    Loading...
    (0)
    Kat's Lower Radiator Hose Heater
    AAP Flag
    Loading...
    (0)
    Kat's Freeze Plug Heater
    AAP Flag
    Loading...
    (248)
    DieHard Silver Battery: 26R Group Size, 575 CCA, 720 CA, 81 Minute Reserve Capacity, For Lower Power Demands
    AAP Flag
    Loading...
    (48)
    DieHard Red Battery: 26R Group Size, 510 CCA, 635 CA, 60 Minute Reserve Capacity, Reliable Starting Power
    AAP Flag
    Loading...
    (56)
    DieHard Red Battery: 24F Group Size, 550 CCA, 685 CA, 85 Minute Reserve Capacity, Reliable Starting Power
    AAP Flag
    Loading...
    (6)
    Prestone MAX Antifreeze + Coolant: All Vehicles, Concentrate, 1 Gallon
    AAP Flag
    Loading...
    (84)
    DieHard Silver Battery: 24F Group Size, 650 CCA, 812 CA, 130 Minute Reserve Capacity, For Lower Power Demands
    AAP Flag
    Loading...
    (209)
    DieHard Platinum AGM Battery: 24F Group Size, 710 CCA, 885 CA, 120 Minute Reserve Capacity
    AAP Flag
    Loading...
    (95)
    Permatex Sensor-Safe, High-Torque RTV Silicone Gasket Maker
Feedback