HomeSuspension > Suspension, Springs and Related ComponentsDorman 43-1749HD Leaf Helper Spring - Rear
Part #: 43-1749HD

Dorman 43-1749HD Leaf Helper Spring - Rear

Rear
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Reliable Dorman Leaf Helper Spring for Suspension Support

The Dorman 43-1749HD leaf helper spring is engineered to enhance your vehicle's suspension system by providing additional load support. Constructed from durable steel, this black leaf spring is designed to improve stability and handling for trucks and SUVs requiring extra suspension strength.

  • Made from high-quality steel (acero) for durability and strength
  • Measures 43.25 inches in length, 3 inches in width, and 0.788 inches in thickness
  • Black finish for corrosion resistance and long-lasting performance
  • Increases leaf spring load capacity by 1050 lbs
  • Maximum load rating of 1050 lbs to support heavy-duty applications
  • Package includes one leaf helper spring (mounting hardware not included)

Durable Steel Construction and Precise Dimensions

The Dorman 43-1749HD leaf helper spring is crafted from robust steel, ensuring it withstands the rigors of heavy loads and rough terrain. Its 43.25-inch length and 3-inch width provide a precise fit for compatible suspension systems, while the 0.788-inch thickness contributes to its load-bearing capacity. The black coating offers protection against rust and environmental wear, extending the service life of the component.

Compatible Vehicles and Suspension Applications

This leaf helper spring is suitable for use in various truck and SUV models that require additional suspension support to handle increased payloads or towing demands. While specific make and model fitment should be verified, the Dorman 43-1749HD is commonly sought for vehicles needing enhanced rear suspension strength. It is ideal for owners looking to improve ride quality and maintain vehicle stability under heavy loads.

Common Suspension Issues Addressed

  • Sagging rear suspension under heavy payloads
  • Reduced vehicle stability when towing or hauling
  • Uneven ride height due to worn or weakened leaf springs
  • Excessive body roll during cornering or braking
  • Premature wear on existing suspension components

Installation Notes and Tips

Installation of the Dorman 43-1749HD leaf helper spring requires proper suspension knowledge and tools. Ensure the vehicle is securely lifted and supported before beginning work. Since mounting hardware is not included, reuse existing hardware if in good condition or acquire appropriate fasteners separately. Verify fitment with your vehicle’s specifications to ensure compatibility and optimal performance.

Quality Assurance and Warranty Information

Dorman manufactures this leaf helper spring to meet or exceed OEM standards, providing reliable performance and durability. While specific warranty details are not provided, Dorman products typically come with a limited warranty against defects in materials and workmanship. Consult product documentation or the manufacturer for exact warranty terms.

BrandDorman
Part Number43-1749HD
MaterialAcero
MaterialSteel
Length43.25
ColorBlack
ColorNegro
ColorNoir
Thickness0.788
Leaf Spring Load Increase Strength1050
Maximum Load Rating1050
Width3
Mounting Hardware IncludedNo
Mounting Hardware IncludedNon
Contenidos del paquete1 hoja de muelle
Package Contents1 leaf spring

This part fits 0 vehicles. Search below:

YearMakeModelPositionNotes

* 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:

043-1749-00HD

Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.