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USD 401.35
Part #: HW3551

Hellwig 3551 LP-35 Load Pro Helper Springs

2020-2022 GM 2500HD 2WD/4WD | 2004-2009 Dodge Sprinter 2500/3500 | 2010-2016 Mercedes-Benz Sprinter 2500/3500 (Multi-Leaf Only)
Part #: HW3551
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The Hellwig 3551 LP-35 Load Pro Helper Springs will improve the stability of your 2020-2022 GM Silverado/Sierra 2500HD 2WD/4WD, 2004-2009 Dodge Sprinter 2500/3500 2WD/4WD, or 2010-2016 Mercedes Sprinter 2500/3500 2WD/4WD when hauling. The Hellwig Helper Spring set the standard for all other aftermarket helper springs. Featuring Progressive Spring Rate and full time 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 full time design the Hellwig Spring immediately reacts to the vehicles load, therefore compressing very little as 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 manufacturers 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. When ordering be sure to identify the spring kit and the appropriate mounting hardware kit to complete the installation. Simple bolt on design using common hand tools provide the installer ease of installation and the vehicle owner hassle free use. Set it and forget it. LP 35 is rated at 3500lbs level load carrying capacity, not exceed the vehicles Gross Vehicle Weight Rating. Install kit required. 

LP-35 Features:
  • 4-Leaf Stack
  • Made In The USA 
  • Up To 3,500 Lbs load Capacity 
  • Offers the Maximum in Carrying Capacity
  • Heat Treated ASTM 5160 Alloy Spring Steel 
  • No Drilling Or Welding Required For Installation 
  • Improves Handling In Towing/Hauling Conditions 
  • Recommended for 3/4 Ton and 1 Ton Applications
  • Limited Lifetime Warranty  
Tech Notes:
Must purchase Hellwig 25303 LP Mounting Hardware Kit for installation on GM Truck (See Below).
Must purchase Hellwig 25351 LP Mounting Hardware Kit for installation on Sprinter Van (See Below).

Application Notes: 
2020-2022 GM Silverado/Sierra 2500HD 2WD/4WD
2004-2009 Dodge Sprinter 2500/3500 2WD/4WD (Multi-Leaf Application Only)
2010-2016 Mercedes-Benz Sprinter 2500/3500 2WD/4WD (Multi-Leaf Application Only)

Vehicle Applications

2020 GMC Gas
2021 GMC Gas
2022 GMC Gas
2020 Chevy Gas
2021 Chevy Gas
2022 Chevy Gas
2020 GMC 6.6L L5P Duramax
2021 GMC 6.6L L5P Duramax
2022 GMC 6.6L L5P Duramax
2020 Chevy 6.6L L5P Duramax
2021 Chevy 6.6L L5P Duramax
2022 Chevy 6.6L L5P Duramax
2004 Mercedes Sprinter 2.7L Diesel
2005 Mercedes Sprinter 2.7L Diesel
2006 Mercedes Sprinter 2.7L Diesel
2007 Mercedes Sprinter 3.0L Diesel
2008 Mercedes Sprinter 3.0L Diesel
2009 Mercedes Sprinter 3.0L Diesel
2010 Mercedes Sprinter 3.0L Diesel
2011 Mercedes Sprinter 3.0L Diesel
2012 Mercedes Sprinter 3.0L Diesel
2013 Mercedes Sprinter 3.0L Diesel
2014 Mercedes Sprinter 3.0L Diesel
2015 Mercedes Sprinter 3.0L Diesel
2016 Mercedes Sprinter 3.0L Diesel
2004 Mercedes Sprinter Gas
2005 Mercedes Sprinter Gas
2006 Mercedes Sprinter Gas
2007 Mercedes Sprinter Gas
2008 Mercedes Sprinter Gas
2009 Mercedes Sprinter Gas
2010 Mercedes Sprinter Gas
2011 Mercedes Sprinter Gas
2012 Mercedes Sprinter Gas
2013 Mercedes Sprinter Gas
2014 Mercedes Sprinter Gas
2015 Mercedes Sprinter Gas
2016 Mercedes Sprinter Gas


  • MFG. Number 3551
  • Manufacturer Name Hellwig
  • Shipping Weight 55.00 lb.
  • Shipping Length 43 in.
  • Shipping Width 7 in.
  • Shipping Height 2 in.
  • Fuel Type Diesel / Gas
  • UPC 745662035518
  • Prop 65 Prop 65 WarningWARNING: Cancer & Reproductive Harm -
  • Internal L0R0


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