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 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, the Magnum delivers reliable front suspension performance with 10-stage valving, a larger bore, and a durable all-weather fluid. A strong choice for older Chevrolet medium-duty commercial vehicles.
- 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 provides 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: Compatible with front suspension on 1976-1989 Chevrolet C50, C60, and C70.
Cross References:
General Motors: 22113732, Monroe Shocks & Struts: 34912, Volvo GM Heavy Truck: 3919919, Sachs: 410048, ACDelco: 55074, Neway: 57306911, Neway: 57306912, Neway: 57366637, Gabriel: 59079, Mack: 600105, Mack: 600105MT, Monroe Shocks & Struts: 601105, Mack: 660105MT, Monroe Shocks & Struts: 661105, NAPA Shocks: 66637, Proven Value: 66912, Monroe Shocks & Struts: 6912, Proven Value: 69912, Gabriel: 727631, Gabriel: 747931, Gabriel: 83304, Automann: A83304, Navistar: AMS600105, Navistar: AMS660105, Motorcraft: CAT912, Motorcraft: CAX912, Euclid: E83304, Nuturn/leland: L59079, Meritor: M83304, Haldex: SA66637, KYB: 345030, KYB: 345613, KYB: KG6001A, Motorcraft: 727631, 66637
- UPC:
- 048598074928
- Mfr Part Number:
- 66637
- Country of origin (CO):
- US
- Color:
- Black
- Compressed Length:
- 14.125 (unece.unit.INH)
- Cylinder Color:
- Black
- Cylinder Finish:
- Painted
- Dust Shield Included:
- Yes
- Dust Shield Material:
- Metal
- Extended Length:
- 23 (unece.unit.INH)
- Gas Charged:
- Yes
- Grade Type:
- Premium
- Hydraulic Lockout:
- No
- Includes Bump Stop:
- No
- Internal Rebound Bumper:
- No
- Lower Mount Code:
- LS54
- Lower Mount Type:
- Loop (Eyelet) Bushing and Sleeve
- Mounting Hardware Included:
- Yes
- Shock Absorber Body End Measuring Point:
- Center of Loop
- Shock Absorber Rod End Measuring Point:
- Center of Loop
- Travel Length:
- 8.875 (unece.unit.INH)
- Upper Mount Code:
- L1/CP5
- Lower Mount Code48:
- LS54
- Upper Mount Code74:
- L1/CP5
- Lower Mount Type49:
- Loop Bushing and Sleeve Mount - 3/4" Sleeve ID X 1.3/4" Sleeve OAL
- Parts Pack(s):
- P00019
- Upper Mount Type75:
- Loop Bushing and Cantilever Pin Mount - 5/8" Stud Diameter X 1 5/16" Stud Length (Center of Loop to Frame)
