Hellwig Coil Helper Spring
Hellwig Coil Helper Springs: American-Made Load Control Since 1946
When a truck or SUV squats under a heavy payload or sags when a trailer hitch is loaded up, the factory suspension is simply being asked to do more than it was designed for. That's exactly the problem Hellwig Products set out to solve when founder Rudy Hellwig began hand-building helper springs in his California shop back in 1946. More than eight decades later, the family-owned brand is still engineering the same solution—now refined into a lineup of precisely engineered coil helper springs that restore ride height, reduce squat, and return control to trucks doing serious work.
A Legacy Built on the Helper Spring
Helper springs weren't just an early Hellwig product—they were the product that started the company. According to Hellwig lore, helper springs were the first components the brand ever produced, and that deep institutional knowledge shows in how the modern lineup is engineered. Today, Hellwig is a fourth-generation, family-owned manufacturer celebrating its 80th anniversary in 2026, and it continues to make every steel product at its Visalia, California headquarters using American steel.
What separates Hellwig in the coil helper spring market is the combination of materials, certification, and warranty that backs every unit. All steel spring products are manufactured from heat-treated ASTM 5160 alloy spring steel in an ISO 9001-certified facility—the same quality standard used for OEM-level components. The result is a part that is built to work alongside the factory suspension rather than fight it.
How Hellwig Coil Helper Springs Work
A coil helper spring is designed to augment the vehicle's existing suspension by adding progressive resistance as the spring compresses under load. When the truck is unloaded, the helper spring rides passively; once weight is applied—whether from cargo in the bed, a truck camper, or a fifth-wheel hitch—the helper spring engages to level the vehicle and prevent the suspension from bottoming out. The practical benefit is a truck that maintains proper ride height, steering geometry, and braking balance even when hauling at or near its gross vehicle weight rating.
Hellwig's coil helper spring designs are engineered to be fully adjustable and bolt-on compatible, requiring only common hand tools for installation. Kits ship complete with heavy-duty powder-coated and plated components, all necessary hardware, and step-by-step installation instructions. Because load requirements change over time, the adjustable U-bolt design lets owners fine-tune spring tension to match their current hauling or towing needs without pulling the suspension apart.
Why Hellwig Stands Apart
- Made in the USA: Every spring is forged in Hellwig's Visalia, California plant—no overseas outsourcing.
- ISO 9001 & ISO 14001 Certified: Quality and environmental management systems meet internationally recognized standards.
- Limited Lifetime Warranty: Hellwig steel spring products are warranted for the normal life of the vehicle upon which they are originally installed.
- Proven Product Lines: Hellwig has designed some of the most popular and widely imitated load-assist products in the light truck aftermarket, including the Load Pro 25 Series, the EZ-550, and the EZ-990.
- Broad Vehicle Coverage: Products span light-duty pickups and SUVs up through heavy-duty work trucks, with load ratings ranging from 500 lb. to 3,500 lb. of leveling capacity.
For truck and SUV owners who tow, haul, or carry heavy loads regularly, a Hellwig coil helper spring is one of the most straightforward and durable upgrades available. Explore the full Hellwig brand page to see the complete suspension lineup, or browse all coil helper springs to find the right fit for your vehicle.