Monroe Magnum Heavy Duty Nitrogen Gas Charged Shock Absorber, 13-3/8 in Compressed, 20-3/8 in Extended, LS54 Mount
#MON65451
Product Overview
The Monroe® Magnum® shock absorber is designed for class 6-8 heavy-duty trucks and buses, featuring a nitrogen gas charge for fast response and improved ride quality. Its large bore and advanced valving provide consistent damping and handling for air spring and taper leaf suspensions, ensuring durability and performance under severe use conditions. Shock Absorber, Metal, 13.375 in Compressed Length, 20.36 in Extended Length, LS54 Lower Mount, 6.985 in Travel Length, LS54 Upper Mount
Features & Benefits
- Hardened 23/32 in (18 mm) Diameter Chrome Piston Rod
- Resistance & Arc-Welded Mounts, Provides 15,000 lbs (6,804 kg) Of Tensile Strength For Maximum Durability
- Large 1-3/4 in (44.5 mm) Piston Bore
- Single-Lip, Low-Friction Oil Seal
- Heavy Wall Drawn Over Mandrel Pressure Tube
- All-weather fluid with special additives reduces oil breakdown and performs in extreme temperatures
- 10-Stage Full Displaced Valving (On Most Applications)
- 2-3/8 in (60.3 mm) Reserve Tube
- Shouldered and bonded bushings with sleeve protect from bushing walkout
- Designed for hardworking commercial vehicles - handles high mileage and severe use in class 6-8 trucks and buses
- Patented Unique Hydraulic Rebound Lockout (When Required)
Specifications
| Body Diameter | 2-3/8 in |
| Compressed Length | 13-3/8 in |
| Extended Length | 20-3/8 in |
| Lower Mount | LS54 |
| Stroke Inch | 6-3/8 in |
| Upper Mount | LS54 |
| Material | Metal |
| Shock Mounting | Resistance & Arc-Welded Mounts |
| Shock Type | Gas Charged (Nitrogen) |
| Travel Length | 6.985 in |
| Manufacturer Part Number | 65451 |
| Product Category | Shock Absorber |
| Quantity | 1 |
Interchanges & Equivalent parts:
| 65451 |
| 85029 |
| M65451 |
| S2212 |
| 1664149C1 |
| 65451-MS |
| A2212 |
| AMS65451 |
| F65451 |
| MAE 65451 |
| MON65451 |
| S-2212HTS |





















