Rear Shock Absorber for 2003-2007 Ford E-450 Super Duty & More - KYB KG6414

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$116.99
MPN: KG6414
UPC: 781552001317
Item Package Quantity: 1
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KYB Suspension Shock Absorber P/N:KG6414
KYB Suspension Shock Absorber P/N:KG6414
$116.99

Firm up the rear of your hard-working van with the KYB Gas-a-just Shock Absorber (KG6414), a high-pressure monotube gas shock that installs in the rear position. It fits many vehicles, among them the 2003-2007 Ford E-450 Super Duty, 2000-2002 Ford E-450 Econoline Super Duty and 1992-2000 Ford E-350 Econoline Club Wagon. See the Buyer's Guide tab for the full list and engine-level fitment.

This monotube design keeps the nitrogen gas and hydraulic oil separated in two working chambers, so it resists the fade that comes from aeration and responds quickly on demand.

  • Fade-free monotube: high-pressure design separates gas and oil for consistent operation and instant response.
  • Up to 25% more damping: adds damping performance over original-equipment shocks.
  • Heavy-duty valving: components and valving designed for heavy-duty trucks that work, tow, and run larger, heavier tires and wheels.
  • Durable rod: an ultra-smooth triple-chrome-plated piston rod helps reduce seal wear; fluid leaking can be one cause of shock failure.

KYB notes the Gas-a-just also helps keep electronic safety systems performing as designed, since those systems depend on the suspension working as intended.

Interchange: 77623 · 555032

This part cross-references / interchanges with the following part numbers:

77623, 555032

Frequently Asked Questions

Is this KYB shock absorber for the front or rear?

This KG6414 Gas-a-just shock is a rear-position unit for the listed applications. Check the Buyer's Guide tab to confirm fitment for your vehicle.

What makes the KYB gas shock absorber a monotube design?

Its high-pressure monotube design keeps the nitrogen gas and hydraulic oil in separate chambers, which resists aeration fade and gives quick, responsive damping.

How much more damping does the Gas-a-just provide?

KYB states the Gas-a-just adds up to 25% more damping performance over original-equipment shocks, with valving designed for heavy-duty truck use.

Does this shock help with towing and larger tires?

Yes. Its components and valving are designed for heavy-duty trucks, adding damping for vehicles that work, tow, and run larger, heavier tires and wheels.

Should I replace shocks in pairs?

This listing is for one shock. Replacing both rear shocks together as a matched pair is recommended for balanced, even ride control.