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
    $94.99
    (0)
    Carquest Premium Exhaust Gas Temperature (EGT) Sensor
    AAP Flag
    $69.99
    (0)
    Carquest Premium Exhaust Gas Temperature (EGT) Sensor
    AAP Flag
    $135.99
    (0)
    Dorman Exhaust Gas Temperature Sensor
    AAP Flag
    $88.99
    (0)
    Carquest Premium Exhaust Gas Temperature (EGT) Sensor
    AAP Flag
    $6.99
    (1245)
    Rain-X 2-In-1 All Season Windshield Washer Fluid: Improved Water Beading, 1 Gallon
    AAP Flag
    $11.49
    (97)
    Road Runner 20 lb. Bag Of Ice Melt: Effective Down To -15 Degrees F
    AAP Flag
    $29.99
    (4083)
    Rain-X Latitude Wiper Blade: 26", Water Repellency 2-in-1 Premium Beam, Pack of 1
    AAP Flag
    $10.99
    (88)
    FRAM Extended Life All Vehicles Antifreeze 50/50 Ready-to Use, 1 Gallon
    AAP Flag
    $16.99
    (2115)
    Mobil 1 Oil Filter: Ideal for Synthetic Oil, Protection To 20,000 Miles
    AAP Flag
    $9.99
    (3961)
    Sea Foam Motor Treatment; Fuel and Oil Additive, for all Gas and Diesel Engines, 16 oz.

Product Information

Product Details
Part No. 65478
Warranty Details (2 YR REPLACEMENT IF DEFECTIVE)
The Monroe Magnum shock absorber for class 6-8 vehicles is the first gas-charged, large-bore shock for air spring and taper leaf suspensions. The nitrogen gas charge provides the fast response essential for today's heavy truck suspension systems.

Product Features:
  • FOR HARDWORKING COMMERCIAL VEHICLES -- Designed to handle the demands of high mileage and severe use class 6-8 trucks and buses
  • CONSISTENT RIDE -- All-weather fluid contains special additives to assist with extreme temperatures and help reduce oil breakdown while larger 2-3/8-in. reserve tube holds more fluid to improve performance (most applications)
  • EXCEPTIONAL HANDLING -- 10-Stage valving, tuned specifically to each vehicle, adjusts to road extremes while the larger 1-3/4-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 (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
  • Single-lip, low-friction oil seal
Specifications
Compressed Length:
15.02 in

Dust Shield:
Yes

Dust Shield Material:
Metal

Extended Length:
23.75 in

Travel Length:
8.73 in

TOP SELLERS IN THIS CATEGORY

    Oil Filter: Ideal for Synthetic Oil, Protection To 20,000 Miles
    $16.99
    (2115)
    Mobil 1 Oil Filter: Ideal for Synthetic Oil, Protection To 20,000 Miles
    Extended Performance Full Synthetic Engine Oil 0W-20, 5 Quart
    $36.99
    (2972)
    Mobil 1 Extended Performance Full Synthetic Engine Oil 0W-20, 5 Quart
    Wiper Blade: 22", Water Repellency 2-in-1 Premium Beam, Pack of 1
    $29.99
    (4083)
    Rain-X Latitude Wiper Blade: 22", Water Repellency 2-in-1 Premium Beam, Pack of 1
    Oil Filter: Ideal for Synthetic Oil, Protection To 20,000 Miles
    $16.99
    (2115)
    Mobil 1 Oil Filter: Ideal for Synthetic Oil, Protection To 20,000 Miles
    Brake Parts Cleaner, Non-Chlorinated, High VOC, 14 oz.
    $5.49
    (1439)
    Carquest Brake Cleaner Brake Parts Cleaner, Non-Chlorinated, High VOC, 14 oz.
    Wiper Blade: 24", Water Repellency 2-in-1 Premium Beam, Pack of 1
    $29.99
    (4083)
    Rain-X Latitude Wiper Blade: 24", Water Repellency 2-in-1 Premium Beam, Pack of 1
    Extended Performance 5W-20 High Mileage Full Synthetic Motor Oil, 5 Quart
    $36.99
    (232)
    Mobil 1 Extended Performance 5W-20 High Mileage Full Synthetic Motor Oil, 5 Quart
    5W-30 High Mileage Full Synthetic Motor Oil - Protection for 10K Miles, 5 Quart
    $33.99
    (1331)
    Mobil 1 5W-30 High Mileage Full Synthetic Motor Oil - Protection for 10K Miles, 5 Quart
    Roadrunner Ice Melt - 12 lb Jug
    $12.99
    (43)
    Road Runner Roadrunner Ice Melt - 12 lb Jug
    Extended Performance High Mileage Full Synthetic Engine Oil 0W-20, 5 Quart
    $36.99
    (232)
    Mobil 1 Extended Performance High Mileage Full Synthetic Engine Oil 0W-20, 5 Quart
0 out of 5
0 Customer Reviews
Loading...
Loading...
Loading...
Loading...
Loading...
Displaying Reviews 1 - 5Back to Top

CUSTOMERS ALSO LIKED

    Antifreeze and Coolant: 50/50 Ready To Use, Universal, Protects Against Corrosion, 1 Gallon
    $14.99
    (885)
    Prestone Antifreeze and Coolant: 50/50 Ready To Use, Universal, Protects Against Corrosion, 1 Gallon
    H11 SilverStar Ultra: Halogen Headlight Bulb, Brightest Downroad and Whiter Light, 2 Pack
    $57.99
    (1706)
    Sylvania H11 SilverStar Ultra: Halogen Headlight Bulb, Brightest Downroad and Whiter Light, 2 Pack
    Extended Life All Vehicles Antifreeze Concentrate, 1 Gallon
    $13.99
    (31)
    FRAM Extended Life All Vehicles Antifreeze Concentrate, 1 Gallon
    Battery: H6 Group Size, 760 CCA, 950 CA, 120 Minute Reserve Capacity, Best For High Electrical Demands
    $259.99
    (599)
    DieHard Platinum AGM Battery: H6 Group Size, 760 CCA, 950 CA, 120 Minute Reserve Capacity, Best For High Electrical Demands
    MaxLife Multi-Vehicle (ATF) Full Synthetic Automatic Transmission Fluid, 1 Gallon
    $36.49
    (453)
    Valvoline MaxLife Multi-Vehicle (ATF) Full Synthetic Automatic Transmission Fluid, 1 Gallon
    H11 Basic: Halogen Headlight Bulb, Basic Performance, 1 Pack
    $17.99
    (2023)
    Sylvania H11 Basic: Halogen Headlight Bulb, Basic Performance, 1 Pack
    Advanced Full Synthetic 5W-30 Motor Oil: Maximizes Engine Life, 5 Quart
    $36.99
    (778)
    Valvoline Advanced Full Synthetic 5W-30 Motor Oil: Maximizes Engine Life, 5 Quart
    ATF+4® Full Synthetic Automatic Transmission Fluid, 1 Gallon
    $33.99
    (13)
    Valvoline ATF+4® Full Synthetic Automatic Transmission Fluid, 1 Gallon
    Synthetic Blend Heavy Duty 15W-40 Motor Oil: 1 Gallon
    $21.99
    (0)
    FRAM Synthetic Blend Heavy Duty 15W-40 Motor Oil: 1 Gallon
    Wiper Blade: 21", Water Repellency 2-in-1 Premium Beam, Pack of 1
    $29.99
    (4083)
    Rain-X Latitude Wiper Blade: 21", Water Repellency 2-in-1 Premium Beam, Pack of 1
No results

TOP SELLERS IN THIS CATEGORY

    H11 XtraVision: Halogen Headlight Bulb, More Downroad Visibility, 2 Pack
    $39.99
    (1734)
    Sylvania H11 XtraVision: Halogen Headlight Bulb, More Downroad Visibility, 2 Pack
    Wiper Blade: 28", Water Repellency 2-in-1 Premium Beam, Pack of 1
    $29.99
    (4083)
    Rain-X Latitude Wiper Blade: 28", Water Repellency 2-in-1 Premium Beam, Pack of 1
    Antifreeze and Coolant: Concentrate, Universal, Protects Against Buildup And Rust, 1 Gallon
    $17.99
    (792)
    Prestone Antifreeze and Coolant: Concentrate, Universal, Protects Against Buildup And Rust, 1 Gallon
    FS European Car Formula Full Synthetic Engine Oil 5W-40, 5 Quart
    $32.99
    (537)
    Mobil 1 FS European Car Formula Full Synthetic Engine Oil 5W-40, 5 Quart
    H11: LED Powersports Headlight or Fog Bulb, 6000K Cool White Light, 2 Pack
    $99.99
    (426)
    Sylvania H11: LED Powersports Headlight or Fog Bulb, 6000K Cool White Light, 2 Pack
    Diesel Exhaust Fluid (DEF): 2.5 Gallon
    $9.99
    (28)
    FRAM Diesel Exhaust Fluid (DEF): 2.5 Gallon
    MaxLife Multi-Vehicle (ATF) Full Synthetic Automatic Transmission Fluid, 1 Quart
    $12.79
    (453)
    Valvoline MaxLife Multi-Vehicle (ATF) Full Synthetic Automatic Transmission Fluid, 1 Quart
    Rear 12'' Wiper Blade: Clear Rear Visibility In All Conditions
    $12.99
    (450)
    TRICO Rear Rear 12'' Wiper Blade: Clear Rear Visibility In All Conditions
    921 Long Life: Mini Bulb, Standard Performance, 2 Pack
    $7.99
    (149)
    Sylvania 921 Long Life: Mini Bulb, Standard Performance, 2 Pack
    SUV Cover, Blue 3 Layers, Fits SUVs 15'-19', Medium-Duty, Water Resistant, Outdoor Use
    $19.95
    (5)
    AutoCraft SUV Cover, Blue 3 Layers, Fits SUVs 15'-19', Medium-Duty, Water Resistant, Outdoor Use
Feedback