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 for high mileage and severe use vehicles, it replaces worn units to help reduce excessive vibration.
A direct-fit rear replacement for Mack CH series trucks, the Magnum is backed by Monroe's 90-day Risk Free Ride Offer and Limited Commercial Warranty.
- For Hardworking Commercial Vehicles: Designed for high mileage and severe use class 3-6 trucks and buses.
- Consistent Ride: All-weather fluid with special additives handles extreme temperatures; 2-in. or 2-1/4-in. reserve tube holds more fluid (when required).
- Exceptional Handling: 10-Stage valving tuned per vehicle; larger 1-3/8-in. bore for more efficient damping and a smoother ride (most applications).
- Strong and Durable: Shouldered and bonded bushing with sleeve prevents bushing walkout; arc welds up to 360° for durability.
- Built to Last: 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 durability and extended service life (most applications).
- Reduced NVH: Isolates impact-related noise, vibration, and harshness under most driving conditions.
- Improves Performance: Nitrogen gas-charge maintains tire-to-road contact by reducing aeration and shock fade.
- Buy with Confidence: Comes with Monroe's 90-day Risk Free Ride Offer and Limited Commercial Warranty.
Common Fits: Mack CH (1989-2005). Rear position.
Cross References:
Mack: 14QK413M4, Mack: 25624341, Hendrickson: 572414, Mack: 572414, Neway: 57366656, Mack: 660211MT, NAPA Shocks: 66656, Gabriel: 83110, Gold Shock Absorber: 9161029, Automann: A83110, Navistar: AMS660211, FCS: F344357, Bulldog HD: HD12140565, Meritor: M83110, Volvo GM Heavy Truck: SA3110, Haldex: SA66656, Mack: AMS660211, Dayton Parts: 44183110, 66656
- UPC:
- 048598075116
- Mfr Part Number:
- 66656
- Country of origin (CO):
- US
- Color:
- Black
- Compressed Length:
- 14.4688 (unece.unit.INH)
- Cylinder Color:
- Black
- Cylinder Finish:
- Painted
- Dust Shield Included:
- Yes
- Dust Shield Material:
- Metal
- Extended Length:
- 22.9688 (unece.unit.INH)
- Gas Charged:
- Yes
- Grade Type:
- Premium
- Hydraulic Lockout:
- Yes
- 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:
- 8.5 (unece.unit.INH)
- Upper Mount Code:
- LS54
- Lower Mount Code48:
- S6
- Upper Mount Code74:
- LS54
- 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 1.3/4" Sleeve OAL