Hellwig Load Pro 35 Helper Spring | Rear Axle | 3500 lbs. Capacity

SKU HW3551-25303

The Hellwig 3551 Load Pro 35 kit is designed to give your truck up to 3500 pounds of load levleing capacity. Includes 2 steel leaf helper springs and 25303 mounting kit.

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Product Specifications

Location: Fits Rear Axle
Capacity:3,500 lbs.
Instructions: Hellwig 3551-25303 Helper Springs Instructions.
Note:Includes Mounting Kit 25303

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The Hellwig 3551 Load Pro 35 kit is designed to give your truck up to 3500 pounds of load levleing capacity. Includes 2 steel leaf helper springs and 25303 mounting kit.

Product Specs for Hellwig 3551-25303

Location: Fits Rear Axle
Capacity:3,500 lbs.
Instructions: Hellwig 3551-25303 Helper Springs Instructions.
Note:Includes Mounting Kit 25303
MPN: 3551-25303

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Hellwig 3551-25303 Details

Hellwig Load Pro 35 Helper Springs

This Hellwig helper spring set features Progressive Spring Rate and Fulltime Spring Rate design, this spring is the workhorse of the Hellwig Spring line. With the Progressive design the vehicle must be loaded and its spring compressed to activate the Hellwig Spring, therefore as the vehicles load increases the Hellwig Helper Spring progressively increases its resistance to the load. In the Fulltime design the Hellwig Spring reacts immediately to the vehicles load, compressing very little as a load is applied to the vehicle.

Manufactured with heat treated ASTM 5160 alloy spring steel these units increase your vehicles level load carrying capacity up to the manufacturer’s Gross Vehicle Weight Rating. Designed to install on full size pick-up trucks and vans, this unit requires mounting hardware to accommodate 2 1/2" or 3" wide leaf springs. Ideal for helping manage your load more efficiently, these kits are easy to install and require little or no maintenance. Just “Set it and forget it”. The LP 35 is rated at 3500lbs level load carrying capacity, do not exceed the Gross Vehicle Weight Rating.

The Hellwig Load Pro 35 Series helper spring is designed for full sized pickup trucks, vans, RVs, and sport utility vehicles. The kit contains 2 heavy duty leaf assemblies that run over both sides of the axle. A mounting hardware kit is included with these heavy duty helper springs.

Features & Benefits

Made with high-quality alloy spring steel.
Engineered for the heaviest loads.
Up to 3500 lb. level load capacity.
Heat-treated for strength and durability.
Recommended for 3/4 Ton and 1 Ton Applications.
4-Leaf Stack.
Progressive Rate Design is Fully Adjustable.
Factory ride is unaffected when vehicle is unloaded.
Includes mounting kit.

Vehicle Application Guide for Hellwig 3551-25303

The HW3551-25303 Hellwig Load Pro 35 Helper Spring | Rear Axle | 3500 lbs. Capacity is engineered to work with specific vehicles displayed below. Can't find your vehicle, or need assistance, please give us a call at 1-800-358-4751 or 1-989-755-0561.

Chevrolet
Dodge
GMC
Mercedes-Benz

Year	Make	Model	Vehicle Option	Installation Notes
2004	Mercedes-Benz	Sprinter 2500	Fits 2 Wheel Drive; Fits 4 Wheel Drive	Includes 3551 spring and 25303 mounting kit. Fits models with the multi-leaf application ONLY.
2005	Mercedes-Benz	Sprinter 2500	Fits 2 Wheel Drive; Fits 4 Wheel Drive	Includes 3551 spring and 25303 mounting kit. Fits models with the multi-leaf application ONLY.
2006	Mercedes-Benz	Sprinter 2500	Fits 2 Wheel Drive; Fits 4 Wheel Drive	Includes 3551 spring and 25303 mounting kit. Fits models with the multi-leaf application ONLY.
2007	Mercedes-Benz	Sprinter 2500	Fits 2 Wheel Drive; Fits 4 Wheel Drive	Includes 3551 spring and 25303 mounting kit. Fits models with the multi-leaf application ONLY.
2008	Mercedes-Benz	Sprinter 2500	Fits 2 Wheel Drive; Fits 4 Wheel Drive	Includes 3551 spring and 25303 mounting kit. Fits models with the multi-leaf application ONLY.
2009	Mercedes-Benz	Sprinter 2500	Fits 2 Wheel Drive; Fits 4 Wheel Drive	Includes 3551 spring and 25303 mounting kit. Fits models with the multi-leaf application ONLY.
2016	Mercedes-Benz	Sprinter 2500	Fits 2 Wheel Drive; Fits 4 Wheel Drive	Includes 3551 spring and 25303 mounting kit. Fits models with the multi-leaf application ONLY.
2013	Mercedes-Benz	Sprinter 2500	Fits 2 Wheel Drive; Fits 4 Wheel Drive	Includes 3551 spring and 25303 mounting kit. Fits models with the multi-leaf application ONLY.
2014	Mercedes-Benz	Sprinter 2500	Fits 2 Wheel Drive; Fits 4 Wheel Drive	Includes 3551 spring and 25303 mounting kit. Fits models with the multi-leaf application ONLY.
2015	Mercedes-Benz	Sprinter 2500	Fits 2 Wheel Drive; Fits 4 Wheel Drive	Includes 3551 spring and 25303 mounting kit. Fits models with the multi-leaf application ONLY.
2011	Mercedes-Benz	Sprinter 2500	Fits 2 Wheel Drive; Fits 4 Wheel Drive	Includes 3551 spring and 25303 mounting kit. Fits models with the multi-leaf application ONLY.
2012	Mercedes-Benz	Sprinter 2500	Fits 2 Wheel Drive; Fits 4 Wheel Drive	Includes 3551 spring and 25303 mounting kit. Fits models with the multi-leaf application ONLY.
2010	Mercedes-Benz	Sprinter 2500	Fits 2 Wheel Drive; Fits 4 Wheel Drive	Includes 3551 spring and 25303 mounting kit. Fits models with the multi-leaf application ONLY.
2008	Dodge	Sprinter 2500	Fits 2 Wheel Drive; Fits 4 Wheel Drive	Includes 3551 spring and 25303 mounting kit. Fits models with the multi-leaf application ONLY.
2009	Dodge	Sprinter 2500	Fits 2 Wheel Drive; Fits 4 Wheel Drive	Includes 3551 spring and 25303 mounting kit. Fits models with the multi-leaf application ONLY.
2007	Dodge	Sprinter 2500	Fits 2 Wheel Drive; Fits 4 Wheel Drive	Includes 3551 spring and 25303 mounting kit. Fits models with the multi-leaf application ONLY.
2004	Dodge	Sprinter 2500	Fits 2 Wheel Drive; Fits 4 Wheel Drive	Includes 3551 spring and 25303 mounting kit. Fits models with the multi-leaf application ONLY.
2006	Dodge	Sprinter 2500	Fits 2 Wheel Drive; Fits 4 Wheel Drive	Includes 3551 spring and 25303 mounting kit. Fits models with the multi-leaf application ONLY.
2005	Dodge	Sprinter 2500	Fits 2 Wheel Drive; Fits 4 Wheel Drive	Includes 3551 spring and 25303 mounting kit. Fits models with the multi-leaf application ONLY.
2020	Chevrolet	Silverado 2500 HD	Fits 2 Wheel Drive; Fits 4 Wheel Drive	Includes 3551 spring and 25303 mounting kit.
2020	GMC	Sierra 2500 HD	Fits 2 Wheel Drive; Fits 4 Wheel Drive	Includes 3551 spring and 25303 mounting kit.
2021	GMC	Sierra 2500 HD	Fits 2 Wheel Drive; Fits 4 Wheel Drive	Includes 3551 spring and 25303 mounting kit.
2022	GMC	Sierra 2500 HD	Fits 2 Wheel Drive; Fits 4 Wheel Drive	Includes 3551 spring and 25303 mounting kit.
2022	Chevrolet	Silverado 2500 HD	Fits 2 Wheel Drive; Fits 4 Wheel Drive	Includes 3551 spring and 25303 mounting kit.
2021	Chevrolet	Silverado 2500 HD	Fits 2 Wheel Drive; Fits 4 Wheel Drive	Includes 3551 spring and 25303 mounting kit.

Customer Q&A - Hellwig 3551-25303

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Hellwig

TruckSpring is a warehouse distributor for Hellwig products and we have been installing Hellwig air spring kits, Hellwig sway bars and Hellwig steel helper springs kits at our shop for years at our Michigan repair facility. We have a great working relationship with Hellwig and are very familiar with all of their suspension products. Hellwig products are made in the USA and we highly recommend them.

The history of Hellwig Products Co, Inc. began in Kansas City, Kansas in the early forties. With son Donald by his side, Rudolph, " Ruddy" Hellwig, began designing and manufacturing "Helper Springs". The business was moved to Southern California in the mid forties and incorporated in 1946.

By the mid 60's the company's southern California location proved to be to small and Don moved the Manufacturing facility to its current location in Visalia, California. Throughout the years Hellwig products has developed innovative suspension products that help vehicles handle loads and control sway. Products include Anti-Sway bars aftermarket and O.E.M. Also the most popular and imitated load assist products ever introduced to the light truck aftermarket, the "Load Pro 25 Series".

With a third generation of Hellwig, Don's son Mark directing the business a whole new series of innovations is being introduced. Included in these innovations is the "Next Generation" of load assist springs the patented "Pro Series" line of springs. Plus, a unique adjustable feature on new Anti-sway bar designs. Hellwig is proud to introduce the "FastRack" motorcycle racking system for toyhaulers and light trucks. Now beginning its 60th year Hellwig Products continues to introduce new materials, processes and manufacturing techniques into its product lines.

For more information visit www.hellwigproducts.com

Hellwig Warranty

Limited Lifetime Warranty

On steel helper springs and sway bars

2 Year Limited Warranty

On Hellwig Air bag kits

What the Warranty does not cover

Damage from accidents, corrosion, improper installation, incorrect applications, overloading, and custom applications that are not specified under the OEM cross references. This warranty does not cover loss of freight, loss of profit, equipment, or personal downtime. Hellwig’s warranties are non-transferrable.

You can view the full details of Hellwig’s warranty here.