Home/All Parts/Hellwig/Hellwig SPECIAL DESIGN HELPER SPRING KIT — for select Ford vehicles (9645)

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Hellwig silver helper spring.

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.

Confirm this fits your vehicle. Use the “Check Fit” selector, or see the Vehicle Compatibility list below for confirmed years, makes and models.

Hellwig

Hellwig SPECIAL DESIGN HELPER SPRING KIT — for select Ford vehicles (9645)

Name: Hellwig SPECIAL DESIGN HELPER SPRING KIT — for select Ford vehicles (9645)
Brand: Hellwig
SKU: HWG9645
Price: 1693.68 CAD
Availability: InStock

Professional installation recommended. This part affects how your vehicle handles, steers or carries load. Have it installed by a qualified technician, torqued to the manufacturer's specification, and have the alignment checked afterwards where the manufacturer calls for it.

Part #: HWG9645 In stock

$1,693.68

Price in CAD. Taxes & shipping calculated at checkout.

Check if it fits your vehicle

1Make

2Model

3Year

Arrives within 1 week.Estimate, not a guarantee — if an order will take longer we contact you before taking payment.

Tracked shipping across CanadaExpress shipping available · 30-day returns · Oversize or freight items: we quote before shipping · Shipping details

Fitment verified against manufacturer data.Wrong fit? Return shipping's on us.

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Fitment Data

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Fits these vehicles

1999–2002 Ford E-450 Econoline Super Duty2003–2019 Ford E-450 Super Duty2021–2026 Ford E-450 Super Duty1997–1999 Ford Econoline Super Duty

Fitment data is provided as a guide — please verify before purchase.

Vehicle fitment

Estimated fitment — verify before purchase

Years	Make	Model
1999–2002	Ford	E-450 Econoline Super Duty
2003–2019	Ford	E-450 Super Duty
2021–2026	Ford	E-450 Super Duty
1997–1999	Ford	Econoline Super Duty

Check fitment before you order. We publish fitment from manufacturer and industry data and take care with it, but fit can depend on trim, cab and bed configuration, factory options and any modifications already on your vehicle. If you are unsure, contact us before ordering — and if fitment we published turns out to be wrong, we cover the return.