The Monroe® Magnum® Rear Suspension 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, replacing worn-out units with Magnum® shocks helps reduce excessive vibration.
Purpose-built for class 3-6 commercial trucks, the Magnum delivers reliable rear suspension performance with 10-stage valving, a larger bore, and durable all-weather construction for sustained heavy-duty use.
- FOR HARDWORKING COMMERCIAL VEHICLES: Designed to handle high mileage and severe use class 3-6 trucks and buses.
- CONSISTENT RIDE: All-weather fluid handles extreme temperatures; 2-in. or 2-1/4-in. reserve tube holds more fluid (when required).
- EXCEPTIONAL HANDLING: 10-Stage valving tuned to each vehicle; larger 1-3/8-in. bore for consistent, smooth ride (most applications).
- STRONG AND DURABLE: Shouldered and bonded bushings protect from bushing walkout; arc welds up to 360° for durability.
- BUILT TO LAST: Robust hydraulic lock-out prevents over-extension of air bags and protects the seal assembly (most applications).
- LONGER SERVICE LIFE: PTFE-coated bearing and nitrocarburized piston rod for long-lasting durability (most applications).
- REDUCED NOISE, VIBRATION AND HARSHNESS: Exceptional control isolating NVH under most driving conditions.
- IMPROVES PERFORMANCE: Nitrogen gas-charge reduces aeration and shock fade.
- BUY WITH CONFIDENCE: Comes with Monroe's 90-day Risk Free Ride Offer and Limited Commercial Warranty.
Common Fits: Compatible with rear suspension on 2001-2011 Freightliner Century Class and 1999-2020 Freightliner MT55.
Cross References:
Freightliner: 1615436000, Freightliner: 1615592000, Freightliner: 1616542000, Freightliner: 1614794000, Freightliner: 1616836000, Freightliner: 1620511000, Freightliner: 1620541000, Sachs: 317529, NAPA Shocks: 66403, Gabriel: 83154, Gold Shock Absorber: 9161041, Bulldog HD: HD12140607, Meritor: M83154, 66403
- UPC:
- 048598075796
- Mfr Part Number:
- 66403
- Country of origin (CO):
- US
- Color:
- Black
- Compressed Length:
- 12.875 (unece.unit.INH)
- Cylinder Color:
- Black
- Cylinder Finish:
- Painted
- Dust Shield Included:
- Yes
- Dust Shield Material:
- Metal
- Extended Length:
- 20.875 (unece.unit.INH)
- Gas Charged:
- Yes
- Grade Type:
- Premium
- Hydraulic Lockout:
- No
- Includes Bump Stop:
- No
- Internal Rebound Bumper:
- No
- Lower Mount Code:
- S6
- Lower Mount Type:
- Stem
- Mounting Hardware Included:
- Yes
- Shock Absorber Body End Measuring Point:
- Base of Stem
- Shock Absorber Rod End Measuring Point:
- Center of Loop
- Travel Length:
- 8 (unece.unit.INH)
- Upper Mount Code:
- LS71
- Lower Mount Code48:
- S6
- Upper Mount Code74:
- LS71
- Lower Mount Type49:
- Stem Mount - 3.5/16" Stem Length X 5/8"-11 Thread Pitch
- Parts Pack(s):
- P01482
- Upper Mount Type75:
- Loop Bushing and Sleeve Mount - 3/4" Sleeve ID X 2.3/4" Sleeve OAL