The Monroe® Magnum® Front and 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 and buses, the Magnum covers both front and rear suspension positions across International, Isuzu, IC Corporation, and Chevrolet platforms with 10-stage valving and all-weather fluid construction.
- 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: Front suspension on 1987-2004 International 3800, 3400, and 3700, 1986-1992 International 1452SC and 1652SC, 1990-2002 International 4700LP, and 2003-2018 IC Corporation RE School Bus. Rear suspension on 1987-1996 Isuzu FSR, FVR, and FTR, and 1987-1996 Chevrolet W6500 Tiltmaster.
Cross References:
International Harvester (IHC): 540395C92, Isuzu: 1516301670, Navistar: 2504419C1, Sachs: 315540, KYB: 345601, Volvo GM Heavy Truck: 3919567, Navistar: 540395C92, DINA: 540395C92, Neway: 57306605, Mack: 600164, Monroe Shocks & Struts: 600164, Mack: 600164MT, Thomas Built Buses: 61300112, Monroe Shocks & Struts: 660164, Monroe Shocks & Struts: 6605, NAPA Shocks: 66605, Gabriel: 727761, Gabriel: 83613, Koni: 881646, Automann: A83613, Navistar: AMS600164, Bulldog HD: HD12140526, Meritor: M83613, Haldex: SA66605, KYB: 345620, Neway: 600164, Dayton Parts: 44183613, 66605
- UPC:
- 048598074607
- Mfr Part Number:
- 66605
- Country of origin (CO):
- US
- Color:
- Black
- Compressed Length:
- 12.859 (unece.unit.INH)
- Cylinder Color:
- Black
- Cylinder Finish:
- Painted
- Dust Shield Included:
- Yes
- Dust Shield Material:
- Metal
- Extended Length:
- 21.391 (unece.unit.INH)
- Gas Charged:
- Yes
- Grade Type:
- Premium
- Hydraulic Lockout:
- No
- Includes Bump Stop:
- No
- Internal Rebound Bumper:
- No
- Lower Mount Code:
- S5
- Lower Mount Type:
- Stem
- Mounting Hardware Included:
- Yes
- Shock Absorber Body End Measuring Point:
- Base of Stem
- Shock Absorber Rod End Measuring Point:
- Base of Stem
- Travel Length:
- 8.532 (unece.unit.INH)
- Upper Mount Code:
- S5
- Lower Mount Code48:
- S5
- Upper Mount Code74:
- S5
- Lower Mount Type49:
- Stem Mount - 2.5/8" Stem Length X 1/2"-13 Thread Pitch
- Parts Pack(s):
- (2) P01303
- Upper Mount Type75:
- Stem Mount - 2.5/8" Stem Length X 1/2"-13 Thread Pitch