The Monroe® Magnum® Front 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 front-end replacement for import cab-over and specialty commercial trucks including Hino, UD, Mitsubishi Fuso, GMC, Chevrolet, and Isuzu platforms, 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: Hino FA14, FA15, FA1415, FA1517, FB14, FB15, FB1715, FB1817 (various years 1989-2004); UD 1800, 2000, 2300LP, 2300DH (1995-2013); Mitsubishi Fuso FK (1990) and FE145 (2005-2011); GMC W6500 Forward and Chevrolet W6500 Tiltmaster (1987-1991); Isuzu FSR (1987-1991). All fitments are front position.

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Cross References:
Hino: 485002750, Mitsubishi Fuso: MC092215, Mitsubishi Fuso: MK433638, General Motors: 1516301681, Isuzu: 1516301681, Koni: 301366, Hino: 485001950, Hino: 485002720, Gold Shock Absorber: 5001338, UD: 5610130Z02, UD: 5611030Z02, Neway: 57366639, Monroe Shocks & Struts: 660196, Mack: 660196, Mack: 660196MT, NAPA Shocks: 66639, Gabriel: 728622, Gabriel: 747518, Gabriel: 747550, Gabriel: 747907, Gabriel: 747911, Navistar: AMS660196, FCS: F346634, Gabriel: G60107, Gabriel: G60164, Gabriel: G63610, Meritor: MG60164, Mitsubishi Fuso: MK302296, Haldex: SA66639, KYB: KG5534, General Motors: MG60164, GMC: 1516301681, 66639

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UPC:

048598074942

Mfr Part Number:

66639

Country of origin (CO):

US

Color:

Black

Compressed Length:

13.25 (unece.unit.INH)

Cylinder Color:

Black

Cylinder Finish:

Painted

Dust Shield Included:

Yes

Dust Shield Material:

Plastic

Extended Length:

22 (unece.unit.INH)

Finish:

Painted

Gas Charged:

Yes

Grade Type:

Premium

Hydraulic Lockout:

No

Includes Bump Stop:

No

Internal Rebound Bumper:

No

Lower Mount Code:

L1

Lower Mount Type:

Loop (Eyelet) Bushing

Mounting Hardware Included:

Yes

Shock Absorber Body End Measuring Point:

Center of Loop

Shock Absorber Rod End Measuring Point:

Base of Stem

Travel Length:

8.75 (unece.unit.INH)

Upper Mount Code:

S4

Adjustable Damping4:

No

Lower Mount Code48:

L1

Upper Mount Code74:

S4

Lower Mount Type49:

Loop Bushing Mount - 5/8" Bushing ID X 1.5/16" Bushing OAL

Parts Pack(s):

P01136

Shaft Diameter61:

16 MM

Upper Mount Type75:

Stem Mount - 2.3/8" Stem Length X 3/8"-16 Thread Pitch