Hellwig · New
Hellwig 03-19 Ford E-450 SD Load Pro- To 3500lb Constant Rate Level LC Helper Spring w/5 Leaf Stack
MPN 9640 · Store SKU hwg9640
Supplier stock checked 11/7/2026, 3:53:26 PM UTC. Adding a part does not reserve it.
Request a return within 30 calendar days after delivery. New parts must be unopened and unused.
Shipping & returns ↗This policy does not limit rights required by law.Free standard shipping on eligible parts orders of $100 or more. Oversized and freight items excluded. Fitment, taxes, availability and final totals are confirmed before payment.
Product details
The Hellwig LP-35 Helper Spring set the standard for all other aftermarket helper springs. Featuring a Fulltime Spring Rate design it is the workhorse of the Hellwig Spring line. This is ideal for fleet applications or vehicles that consistently carry a heavy load day in and day out. LP-35 Heavy Duty Load Leveler Helper Springs for 1997-2022 Ford E40/E450 with 5 leaf stack LP-35 Heavy Duty Load Leveler Helper Springs for 1997-2026 Ford E40/E450 with 5 leaf stack LP-35 Heavy Duty Load Leveler Helper Springs for 1997-2022 Ford E40/E450 with 5 leaf stack SPECIAL DESIGN HELPER SPRING KIT
Manufacturer fitment & guides
Check 9640 against the manufacturer’s application information below.
Part-specific notes
- California Proposition 65: Y