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Monroe 550066 Shock Absorber - Rear
Overview of Monroe Magnum Light Truck Shock Absorber 550066
The Monroe Magnum Light Truck Shock Absorber 550066 is engineered for Ford F-250 Super Duty and F-350 Super Duty trucks. Designed to provide reliable suspension performance, this shock absorber features a dust shield and extended bumper stop to enhance durability and ride control.
- Compatible with Ford F-250 Super Duty and F-350 Super Duty models
- Includes dust shield for protection against debris
- Extended bumper stop for improved suspension travel control
- Loop bushing and sleeve lower mount with precise dimensions
- Reserve tube diameter of 2.251 inches for consistent damping
- Compressed length of 18.63 inches and extended length of 31.17 inches
- Travel length of 12.54 inches to accommodate heavy-duty use
Monroe Magnum Light Truck Shock Absorber Product Line
The Magnum Light Truck Shock Absorber line by Monroe is designed specifically for heavy-duty trucks requiring robust suspension components. This product line focuses on delivering durability and consistent performance under demanding conditions, making it suitable for vehicles like the Ford F-250 Super Duty and F-350 Super Duty. The 550066 part number represents a shock absorber built to meet the rigorous needs of light trucks with features such as extended bumper stops and dust shields to protect internal components.
Detailed Product Description
The Monroe 550066 shock absorber is a suspension shock absorber tailored for heavy-duty Ford trucks. It features a dust shield that helps prevent dirt and debris from compromising the shock’s internal mechanisms, extending its service life. The extended bumper stop provides additional cushioning at the end of the shock’s travel, reducing harsh impacts and improving ride quality. The lower mounting uses a loop bushing and sleeve mount with a 9/16 inch sleeve inner diameter and 1.5 inch outer length, while the upper mounting employs a loop bushing mount with a 5/8 inch bushing inner diameter and 1.3125 inch outer length. With a reserve tube diameter of 2.251 inches, this shock absorber maintains consistent hydraulic damping performance. The compressed length measures 18.63 inches, and the extended length is 31.17 inches, allowing for a travel length of 12.54 inches, which supports the suspension needs of heavy-duty trucks.
Common Applications and Problem Solving
- Reduces excessive bouncing and improves vehicle stability on rough terrain
- Minimizes suspension wear caused by debris and contaminants with dust shield protection
- Controls suspension travel to prevent bottoming out with extended bumper stop
- Enhances handling and load carrying capacity for Ford F-250 and F-350 Super Duty trucks
- Replaces worn or damaged shocks to restore factory suspension performance
Installation Notes and Tips
- Verify compatibility with Ford F-250 Super Duty and F-350 Super Duty models before installation
- Inspect mounting bushings and hardware for wear and replace if necessary
- Ensure proper alignment of loop bushing mounts during installation to avoid premature wear
- Use appropriate tools to avoid damage to the dust shield and mounting components
- Follow vehicle manufacturer torque specifications for mounting bolts
Quality Assurance and Warranty
Monroe manufactures the Magnum Light Truck Shock Absorber 550066 to meet strict quality standards for durability and performance. While specific warranty details are not provided here, Monroe typically offers coverage against defects in materials and workmanship. It is recommended to consult Monroe’s official warranty documentation or authorized dealers for precise warranty terms related to this part.
| Brand | Monroe |
|---|---|
| Part Number | 550066 |
| Position | Magnum Light Truck Shock Absorber, Rear |
| L1 | |
| Compressed Bumper Stop | No |
| Compressed Length | 18.63 |
| Dust Shield | Yes |
| Extended Bumper Stop | Yes |
| Extended Hydraulic Lockout | No |
| Extended Length | 31.17 |
| Lower Mounting Code | LS78 |
| Lower Mounting Type | Loop Bushing & Sleeve Mount - 9/16" Sleeve ID X 1.1/2" Sleeve OAL |
| Parts Pack | None |
| Reserve Tube Diameter | 2.251 |
| Travel Length | 12.54 |
| Upper Mounting Type | Loop Bushing Mount - 5/8" Bushing ID X 1.5/16" Bushing OAL |
This part fits 30 vehicles. Search below:
| Year | Make | Model | Body Type | Drive Type | Position | Notes |
|---|---|---|---|---|---|---|
| 2026 | Ford | F-250 Super Duty | 4WD | Rear | Magnum Light Truck Shock Absorber | |
| 2026 | Ford | F-350 Super Duty | Standard Cab Pickup | 4WD | Rear | Magnum Light Truck Shock Absorber |
| 2025 | Ford | F-250 Super Duty | 4WD | Rear | Magnum Light Truck Shock Absorber | |
| 2025 | Ford | F-350 Super Duty | Standard Cab Pickup | 4WD | Rear | Magnum Light Truck Shock Absorber |
| 2024 | Ford | F-250 Super Duty | 4WD | Rear | Magnum Light Truck Shock Absorber | |
| 2024 | Ford | F-350 Super Duty | Standard Cab Pickup | 4WD | Rear | Magnum Light Truck Shock Absorber |
| 2023 | Ford | F-250 Super Duty | 4WD | Rear | Magnum Light Truck Shock Absorber | |
| 2023 | Ford | F-350 Super Duty | Standard Cab Pickup | 4WD | Rear | Magnum Light Truck Shock Absorber |
| 2022 | Ford | F-250 Super Duty | 4WD | Rear | Magnum Light Truck Shock Absorber | |
| 2022 | Ford | F-350 Super Duty | Standard Cab Pickup | 4WD | Rear | Magnum Light Truck Shock Absorber |
| 2021 | Ford | F-250 Super Duty | 4WD | Rear | Magnum Light Truck Shock Absorber | |
| 2021 | Ford | F-350 Super Duty | Standard Cab Pickup | 4WD | Rear | Magnum Light Truck Shock Absorber |
| 2021 | Ford | F-350 Super Duty | Extended Cab Pickup | 4WD | Rear | Magnum Light Truck Shock Absorber |
| 2021 | Ford | F-350 Super Duty | Crew Cab Pickup | 4WD | Rear | Magnum Light Truck Shock Absorber |
| 2020 | Ford | F-250 Super Duty | 4WD | Rear | Magnum Light Truck Shock Absorber | |
| 2020 | Ford | F-350 Super Duty | Standard Cab Pickup | 4WD | Rear | Magnum Light Truck Shock Absorber |
| 2020 | Ford | F-350 Super Duty | Extended Cab Pickup | 4WD | Rear | Magnum Light Truck Shock Absorber |
| 2020 | Ford | F-350 Super Duty | Crew Cab Pickup | 4WD | Rear | Magnum Light Truck Shock Absorber |
| 2019 | Ford | F-250 Super Duty | 4WD | Rear | Magnum Light Truck Shock Absorber | |
| 2019 | Ford | F-350 Super Duty | Standard Cab Pickup | 4WD | Rear | Magnum Light Truck Shock Absorber |
| 2019 | Ford | F-350 Super Duty | Extended Cab Pickup | 4WD | Rear | Magnum Light Truck Shock Absorber |
| 2019 | Ford | F-350 Super Duty | Crew Cab Pickup | 4WD | Rear | Magnum Light Truck Shock Absorber |
| 2018 | Ford | F-250 Super Duty | 4WD | Rear | Magnum Light Truck Shock Absorber | |
| 2018 | Ford | F-350 Super Duty | Standard Cab Pickup | 4WD | Rear | Magnum Light Truck Shock Absorber |
| 2018 | Ford | F-350 Super Duty | Extended Cab Pickup | 4WD | Rear | Magnum Light Truck Shock Absorber |
| 2018 | Ford | F-350 Super Duty | Crew Cab Pickup | 4WD | Rear | Magnum Light Truck Shock Absorber |
| 2017 | Ford | F-250 Super Duty | 4WD | Rear | Magnum Light Truck Shock Absorber | |
| 2017 | Ford | F-350 Super Duty | Standard Cab Pickup | 4WD | Rear | Magnum Light Truck Shock Absorber |
| 2017 | Ford | F-350 Super Duty | Extended Cab Pickup | 4WD | Rear | Magnum Light Truck Shock Absorber |
| 2017 | Ford | F-350 Super Duty | Crew Cab Pickup | 4WD | Rear | Magnum Light Truck Shock Absorber |
* Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.
This part directly replaces or is cross-referenced with the following part numbers:
Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.