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).

Built for severe-use Peterbilt and White/GMC platforms, the Magnum Cab shock reduces driver fatigue and NVH across a broad range of conventional and sleeper cab trucks, 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: Peterbilt 335 (2005-2010), Peterbilt 348 (2010-2023), Peterbilt 365 (2008-2021), Peterbilt 367 (2008-2023), Peterbilt 379 (1990-2007), Peterbilt 386 (2006-2016), Peterbilt 388 (2008-2015), Peterbilt 389 (2008-2023); White/GMC WIA (1988-1995). All fitments are cab position.

---

Cross References:
Volvo: 3939055, Volvo: 8168617, Peterbilt: 2016755, Peterbilt: R716005, Peterbilt: 2016775, Sachs: 317780, Volvo GM Heavy Truck: 3939055, Gabriel: 654812, NAPA Shocks: 66101, Volvo GM Heavy Truck: 8168617, Gabriel: 83030, Gabriel: 83042, Gold Shock Absorber: 9151369, FOX Commercial Truck Shocks: 98030005, Automann: A83042, FCS: F347275, Flagg Suspension Parts: F66101, Bulldog HD: HD12140536, Meritor: M83042, Kenworth: R716005, Haldex: SA66101, FCS: F347204, FOX Commercial Truck Shocks: F347275, Dayton Parts: 44183042, 66101

---

UPC:

048598076205

Mfr Part Number:

66101

Country of origin (CO):

CN

Color:

Black

Compressed Length:

7.56 (unece.unit.INH)

Cylinder Finish:

Painted

Dust Shield Included:

Yes

Dust Shield Material:

Metal

Extended Length:

9.96 (unece.unit.INH)

Gas Charged:

Yes

Grade Type:

Premium

Hydraulic Lockout:

No

Includes Bump Stop:

No

Internal Rebound Bumper:

No

Lower Mount Code:

LS80

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:

2.4 (unece.unit.INH)

Upper Mount Code:

LS80

Lower Mount Code48:

LS80

Upper Mount Code74:

LS80

Lower Mount Type49:

Loop Bushing and Sleeve Mount - 5/8"-16MM Sleeve ID X 1.3/4" Sleeve OAL

Upper Mount Type75:

Loop Bushing and Sleeve Mount - 5/8" Sleeve ID X 1.3/4" Sleeve OAL