The Monroe® Magnum® Cab Suspension Shock Absorber is a gas-charged unit designed for heavy-duty cab suspensions, isolating the cab from the frame for a smoother, more comfortable ride. Velocity-sensitive valving delivers a new standard in driver comfort (most applications).
A comprehensive cab replacement for Western Star trucks spanning multiple generations and model lines, the Magnum Cab shock 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 vehicles with cab suspensions.
- Consistent Ride: All-weather fluid with special additives handles extreme temperatures; larger 2-in. reserve tube holds more fluid (when required).
- Exceptional Handling: 10-Stage valving tuned per vehicle; larger 1-3/8-in. bore provides efficient and consistent control (most applications).
- Strong and Durable: Shouldered and bonded bushing with sleeve prevents bushing walkout; arc welds up to 360° for durability.
- Longer Service Life: PTFE-coated bearing and nitrocarburized piston rod for durability and extended service life (most applications).
- Reduced NVH: Exceptional control isolating 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: Western Star 4800 and 4900 (1981-2002), Western Star 4800SB (2012-2022), Western Star 4800SF (2013-2022), Western Star 4900E (1997-2002), Western Star 4900SA (2002-2023), Western Star 5800 (1997-2002), Western Star 5900 (1989-2001), Western Star 6900 (1989-2001). All fitments are cab position.
Cross References:
Western Star: 660103404, Western Star: 1860770001, Sachs: 315610, Gabriel: 617547, Western Star: 660103402, Western Star: 660103403, Western Star: 660103405, Western Star: 661013404, NAPA Shocks: 66149, Western Star: 725470, Sachs: 814903003500, Gabriel: 83010, Gabriel: 83022, Gabriel: 83026, Gold Shock Absorber: 9161071, Automann: A83022, FCS: F347294, Bulldog HD: HD12140613, Meritor: M83022, Haldex: SA66149, Gabriel: 660103402, 66149
- UPC:
- 048598076335
- Mfr Part Number:
- 66149
- Country of origin (CO):
- CN
- Color:
- Black
- Compressed Length:
- 9.25 (unece.unit.INH)
- Cylinder Finish:
- Painted
- Dust Shield Included:
- Yes
- Dust Shield Material:
- Metal
- Extended Length:
- 14 (unece.unit.INH)
- Gas Charged:
- Yes
- Grade Type:
- Premium
- Hydraulic Lockout:
- No
- Includes Bump Stop:
- No
- Internal Rebound Bumper:
- No
- Lower Mount Code:
- LS37
- Lower Mount Type:
- Loop (Eyelet) Bushing and Sleeve
- Mounting Hardware Included:
- No
- Shock Absorber Body End Measuring Point:
- Center of Loop
- Shock Absorber Rod End Measuring Point:
- Center of Loop
- Travel Length:
- 4.75 (unece.unit.INH)
- Upper Mount Code:
- LS37
- Lower Mount Code48:
- LS37
- Upper Mount Code74:
- LS37
- Lower Mount Type49:
- Loop Bushing and Sleeve Mount - 1/2" Sleeve ID X 1.3/8" Sleeve OAL
- Upper Mount Type75:
- Loop Bushing and Sleeve Mount - 1/2" Sleeve ID X 34.93MM Sleeve OAL
