Hellwig · New
Hellwig 03-18 Ford E-450 SD Load Pro- To 3500lb Constant Rate Level LC Helper Spring w/11 Leaf Stack
MPN 9645 · Store SKU hwg9645
Supplier stock checked 11/7/2026, 1:45:46 PM UTC. Adding a part does not reserve it.
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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 11 leaf stack. LP-35 Heavy Duty Load Leveler Helper Springs for 1997-2022 Ford E40, E450 with 11 leaf stack. LP-35 Heavy Duty Load Leveler Helper Springs for 1997-2026 Ford E40, E450 with 11 leaf stack. SPECIAL DESIGN HELPER SPRING KIT
Manufacturer fitment & guides
Check 9645 against the manufacturer’s application information below.
Part-specific notes
- California Proposition 65: Y