Monroe Magnum Gas Charged Shock Absorber, 14-9/16 in Compressed, 23-29/32 in Extended, 9-11/32 in Stroke, LS54 Mounts, 1-3/8 in Bore
#MON66878
Product Overview
The Monroe® Magnum® 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, replace worn-out units with Magnum® shocks to help reduce excessive vibration and improve handling.Shock Absorber, Metal, 14.5625 in Compressed Length, 23.9063 in Extended Length, LS54 Lower Mount, 9.343 in Travel Length, LS54 Upper Mount
Features & Benefits
- 5/8 in (15.9 mm) Diameter Piston Rod (On Most Applications)
- Resistance & Arc-Welded Mounts, Provide 9,500 lbs (4,309 kg) Of Tensile Strength For Maximum Durability (On Most Applications)
- 2 in Or 2-3/8 in (50.8 mm Or 60.3 mm) Reserve Tube (Where Required)
- 1-3/8 in (34.9 mm) Bore (On Most Applications)
- Multi-Lip Fluid Seal Designed For Smooth Performance, Long Life & Reduced Friction
- 10-Stage Full Displaced Valving (On Most Applications)
- Exceptional handling - 10-stage valving, tuned specifically to each vehicle, adjusts to road extremes while the larger 1-3/8 in bore provides more efficient damping control to provide consistency and a smooth ride (most applications)
- Nitrogen Gas Charged: For Improved Ride & Handling, Helps Maintain Tire To Road Contact By Reducing Aeration.
- For hardworking commercial vehicles - designed to handle the demands of high mileage and severe use class 3-6 trucks and buses
- Strong and durable - shouldered bushing and bonded bushing with sleeve protects from bushing walkout for improved quality; arc welds up to 360 deg for durability
- Consistent ride - all-weather fluid contains special additives to assist with extreme temperatures and help reduce oil breakdown while 2 in or 2-1/4 in reserve tube holds more fluid to improve performance (when required)
- Patented Unique Hydraulic Rebound Lockout (When Required)
Specifications
| Application | 2012-2020 Western Star 4700SB (Rear); 2012-2020 Western Star 4700SF (Rear); 1987-1989 Chevrolet S7 S7T042 (Rear); 1960-1989 Chevrolet C50 (Rear, Front); 1960-1989 Chevrolet C60 (Rear, Front); 1960-1989 Chevrolet C70 (Rear, Front); 1980-1989 GMC C5000 (Rear); 1980-1989 GMC C6000 (Rear); 1980-1989 GMC C7000 (Rear); 1993-2005 Kenworth K300 (Rear); 1995-2008 Kenworth T300 (Rear); 2008-2018 Kenworth T170 (Rear); 2008-2023 Kenworth T270 (Rear); 2016-2023 Kenworth T370 (Rear); 1986-2008 Kenworth T600A (Rear); 1987-2022 Kenworth T800 (Rear); 1981-2022 Kenworth W900 (Rear); 2010-2020 Kenworth T400 (Rear); 2013-2020 Kenworth T680 (Rear); 2014-2023 Kenworth T880 (Rear); 2013-2022 Kenworth K270 (Rear); 2013-2022 Kenworth K370 (Rear); 2021-2024 Kenworth T280 (Rear); 2022-2024 Kenworth T380 (Rear); 2008-2015 Peterbilt 210 (Rear); 2007-2023 Peterbilt 220 (Rear); 2011-2018 Peterbilt 337 (Rear); 2010-2023 Peterbilt 348 (Rear); 2008-2018 Peterbilt 389 (Rear); 2013-2024 Peterbilt 579 (Rear); 2011-2018 Peterbilt 587 (Rear); 2017-2022 Peterbilt 520 (Rear); 1995-2022 Peterbilt 330 (Rear) |
| Compressed Length | 14-9/16 in |
| Dust Shield | Yes |
| Extended Length | 23-29/32 in |
| Lower Mount | LS54 |
| Stroke Inch | 9-11/32 in |
| Upper Mount | LS54 |
| Material | Metal |
| Shock Type | Gas Charged |
| Travel Length | 9.343 in |
| Manufacturer Part Number | 66878 |
| Product Category | Shock Absorber |
| Quantity | 1 |
Interchanges & Equivalent parts:
| 600157 |
| 660157 |
| 66878 |
| 83221 |
| M66878 |
| 3919910 |
| 3192891 |
| 3192892 |
| 4790218 |
| 4975510 |
| 5398598 |
| 55077 |
| 5534401 |
| 5534427 |
| 5549599 |
| UEY1124001 |




















