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Dorman 43-1859 Leaf Spring Assembly - Rear
Durable Leaf Spring Assembly for Ford F-350 Super Duty
The Dorman 43-1859 leaf spring assembly is engineered to restore the rear suspension performance of your Ford F-350 Super Duty. Constructed from high-quality steel with black bushings, this replacement leaf spring assembly offers reliable support and consistent load handling for your heavy-duty truck.
- Constructed from durable steel material for long-lasting strength
- Includes black bushings for smooth suspension operation
- Standard replacement suspension grade for reliable performance
- Five-leaf pack with 3-inch leaf width and 4.34-inch pack thickness
- Designed for rear axle orientation with no axle modification required
- Load rate of 4275 lbs suitable for heavy-duty applications
Product Details and Specifications
This Dorman leaf spring assembly (part number 43-1859) is designed specifically for the rear suspension of the Ford F-350 Super Duty. The assembly features a five-leaf configuration with each leaf measuring 3 inches in width, providing a balanced combination of flexibility and strength. The steel construction ensures durability under heavy loads, while the black bushings included help reduce noise and vibration during operation. With a load rate of 4275 lbs, this leaf spring assembly supports the demanding weight requirements of your truck without requiring any axle modifications. The pack thickness measures 4.34 inches, and the leaf spring arch length is 3 inches, matching OEM specifications for a direct replacement.
Common Applications and Problem Resolution
- Restores sagging or worn rear suspension on Ford F-350 Super Duty trucks
- Addresses uneven ride height and poor load handling
- Eliminates excessive rear-end bounce and improves stability
- Replaces cracked or broken leaf springs to maintain vehicle safety
- Improves towing and payload capacity by restoring suspension integrity
Installation Notes and Tips
The Dorman 43-1859 leaf spring assembly is designed for straightforward installation on the rear axle of the Ford F-350 Super Duty without the need for axle modifications. While bushings are included, mounting hardware is not provided and should be sourced separately if needed. It is recommended to inspect all suspension components during installation and replace any worn or damaged parts to ensure optimal performance. Proper torque specifications should be followed to maintain safety and alignment.
Quality Assurance and Warranty
Dorman manufactures this leaf spring assembly to meet or exceed OEM standards, ensuring reliable performance and durability. The steel construction and quality bushings contribute to a long service life under heavy-duty conditions. Please refer to Dorman's warranty policy for specific coverage details related to the 43-1859 leaf spring assembly.
| Brand | Dorman |
|---|---|
| Part Number | 43-1859 |
| Material | Acero |
| Material | Steel |
| Bushing Color | Black |
| Bushing Color | Negro |
| Bushing Color | Noir |
| Color | Black |
| Color | Negro |
| Color | Noir |
| Load Rate | 4275 |
| Suspension Grade Type | Reemplazo estándar |
| Suspension Grade Type | Standard |
| Leaf Quantity | 5 |
| Leaf Width | 3 |
| Axle Orientation | Arrière |
| Axle Orientation | Rear |
| Axle Orientation | Trasero |
| Helper Spring | No |
| Helper Spring | Non |
| Axle Modification Needed | No |
| Axle Modification Needed | Non |
| Bushings Included | Oui |
| Bushings Included | Sí |
| Bushings Included | Yes |
| Mounting Hardware Included | No |
| Mounting Hardware Included | Non |
| Length Axis 1 | 33.188 |
| Length Axis 2 | 33.188 |
| Pack Thickness | 4.34 |
| Leaf Spring Arch Length | 3 |
| Spring Research Institute Number | 43-1859 |
This part fits 27 vehicles. Search below:
| Year | Make | Model | Body Type | Position | Notes |
|---|---|---|---|---|---|
| 2016 | Ford | F-350 Super Duty | Standard Cab Pickup | Rear | 5 Leaf; 3.34 In. Pack Thickness; 4,275 Lb. Average Capacity; w/Dual Rear Wheels (DRW); w/Helper Springs; Includes Helper Springs |
| 2016 | Ford | F-350 Super Duty | Extended Cab Pickup | Rear | 5 Leaf; 3.34 In. Pack Thickness; 4,275 Lb. Average Capacity; w/Dual Rear Wheels (DRW); w/Helper Springs; Includes Helper Springs |
| 2016 | Ford | F-350 Super Duty | Crew Cab Pickup | Rear | 5 Leaf; 3.34 In. Pack Thickness; 4,275 Lb. Average Capacity; w/Dual Rear Wheels (DRW); w/Helper Springs; Includes Helper Springs |
| 2015 | Ford | F-350 Super Duty | Standard Cab Pickup | Rear | 5 Leaf; 3.34 In. Pack Thickness; 4,275 Lb. Average Capacity; w/Dual Rear Wheels (DRW); w/Helper Springs; Includes Helper Springs |
| 2015 | Ford | F-350 Super Duty | Extended Cab Pickup | Rear | 5 Leaf; 3.34 In. Pack Thickness; 4,275 Lb. Average Capacity; w/Dual Rear Wheels (DRW); w/Helper Springs; Includes Helper Springs |
| 2015 | Ford | F-350 Super Duty | Crew Cab Pickup | Rear | 5 Leaf; 3.34 In. Pack Thickness; 4,275 Lb. Average Capacity; w/Dual Rear Wheels (DRW); w/Helper Springs; Includes Helper Springs |
| 2014 | Ford | F-350 Super Duty | Standard Cab Pickup | Rear | 5 Leaf; 3.34 In. Pack Thickness; 4,275 Lb. Average Capacity; w/Dual Rear Wheels (DRW); w/Helper Springs; Includes Helper Springs |
| 2014 | Ford | F-350 Super Duty | Extended Cab Pickup | Rear | 5 Leaf; 3.34 In. Pack Thickness; 4,275 Lb. Average Capacity; w/Dual Rear Wheels (DRW); w/Helper Springs; Includes Helper Springs |
| 2014 | Ford | F-350 Super Duty | Crew Cab Pickup | Rear | 5 Leaf; 3.34 In. Pack Thickness; 4,275 Lb. Average Capacity; w/Dual Rear Wheels (DRW); w/Helper Springs; Includes Helper Springs |
| 2013 | Ford | F-350 Super Duty | Standard Cab Pickup | Rear | 5 Leaf; 3.34 In. Pack Thickness; 4,275 Lb. Average Capacity; w/Dual Rear Wheels (DRW); w/Helper Springs; Includes Helper Springs |
| 2013 | Ford | F-350 Super Duty | Extended Cab Pickup | Rear | 5 Leaf; 3.34 In. Pack Thickness; 4,275 Lb. Average Capacity; w/Dual Rear Wheels (DRW); w/Helper Springs; Includes Helper Springs |
| 2013 | Ford | F-350 Super Duty | Crew Cab Pickup | Rear | 5 Leaf; 3.34 In. Pack Thickness; 4,275 Lb. Average Capacity; w/Dual Rear Wheels (DRW); w/Helper Springs; Includes Helper Springs |
| 2012 | Ford | F-350 Super Duty | Standard Cab Pickup | Rear | 5 Leaf; 3.34 In. Pack Thickness; 4,275 Lb. Average Capacity; w/Dual Rear Wheels (DRW); w/Helper Springs; Includes Helper Springs |
| 2012 | Ford | F-350 Super Duty | Extended Cab Pickup | Rear | 5 Leaf; 3.34 In. Pack Thickness; 4,275 Lb. Average Capacity; w/Dual Rear Wheels (DRW); w/Helper Springs; Includes Helper Springs |
| 2012 | Ford | F-350 Super Duty | Crew Cab Pickup | Rear | 5 Leaf; 3.34 In. Pack Thickness; 4,275 Lb. Average Capacity; w/Dual Rear Wheels (DRW); w/Helper Springs; Includes Helper Springs |
| 2011 | Ford | F-350 Super Duty | Standard Cab Pickup | Rear | 5 Leaf; 3.34 In. Pack Thickness; 4,275 Lb. Average Capacity; w/Dual Rear Wheels (DRW); w/Helper Springs; Includes Helper Springs |
| 2011 | Ford | F-350 Super Duty | Extended Cab Pickup | Rear | 5 Leaf; 3.34 In. Pack Thickness; 4,275 Lb. Average Capacity; w/Dual Rear Wheels (DRW); w/Helper Springs; Includes Helper Springs |
| 2011 | Ford | F-350 Super Duty | Crew Cab Pickup | Rear | 5 Leaf; 3.34 In. Pack Thickness; 4,275 Lb. Average Capacity; w/Dual Rear Wheels (DRW); w/Helper Springs; Includes Helper Springs |
| 2010 | Ford | F-350 Super Duty | Standard Cab Pickup | Rear | 5 Leaf; 3.34 In. Pack Thickness; 4,275 Lb. Average Capacity; w/Dual Rear Wheels (DRW); w/Helper Springs; Includes Helper Springs |
| 2010 | Ford | F-350 Super Duty | Extended Cab Pickup | Rear | 5 Leaf; 3.34 In. Pack Thickness; 4,275 Lb. Average Capacity; w/Dual Rear Wheels (DRW); w/Helper Springs; Includes Helper Springs |
| 2010 | Ford | F-350 Super Duty | Crew Cab Pickup | Rear | 5 Leaf; 3.34 In. Pack Thickness; 4,275 Lb. Average Capacity; w/Dual Rear Wheels (DRW); w/Helper Springs; Includes Helper Springs |
| 2009 | Ford | F-350 Super Duty | Standard Cab Pickup | Rear | 5 Leaf; 3.34 In. Pack Thickness; 4,275 Lb. Average Capacity; w/Dual Rear Wheels (DRW); w/Helper Springs; Includes Helper Springs |
| 2009 | Ford | F-350 Super Duty | Extended Cab Pickup | Rear | 5 Leaf; 3.34 In. Pack Thickness; 4,275 Lb. Average Capacity; w/Dual Rear Wheels (DRW); w/Helper Springs; Includes Helper Springs |
| 2009 | Ford | F-350 Super Duty | Crew Cab Pickup | Rear | 5 Leaf; 3.34 In. Pack Thickness; 4,275 Lb. Average Capacity; w/Dual Rear Wheels (DRW); w/Helper Springs; Includes Helper Springs |
| 2008 | Ford | F-350 Super Duty | Standard Cab Pickup | Rear | 5 Leaf; 3.34 In. Pack Thickness; 4,275 Lb. Average Capacity; w/Dual Rear Wheels (DRW); w/Helper Springs; Includes Helper Springs |
| 2008 | Ford | F-350 Super Duty | Extended Cab Pickup | Rear | 5 Leaf; 3.34 In. Pack Thickness; 4,275 Lb. Average Capacity; w/Dual Rear Wheels (DRW); w/Helper Springs; Includes Helper Springs |
| 2008 | Ford | F-350 Super Duty | Crew Cab Pickup | Rear | 5 Leaf; 3.34 In. Pack Thickness; 4,275 Lb. Average Capacity; w/Dual Rear Wheels (DRW); w/Helper Springs; Includes Helper Springs |
* 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.