KYB Suspension Shock Absorber P/N:KG6199

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$111.99
MPN: KG6199
UPC: 781552061991
Item Package Quantity: 1
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KYB Suspension Shock Absorber P/N:KG6199
KYB Suspension Shock Absorber P/N:KG6199
$111.99

Keep every mile controlled with the KYB Gas-a-just Shock Absorber KG6199, a rear high-pressure monotube gas shock that drops in as a direct-fit replacement for the 1989-1992 Chevrolet W4500 Tiltmaster, 1992-1995 GMC W4500 Forward, and 1986-1995 Isuzu NPR (see the Buyer's Guide tab for engine details). This KYB shock absorber uses a monotube design that separates the nitrogen gas and hydraulic oil so it resists fade and responds instantly, without the aeration that can affect traditional twin-tube shocks.

  • Monotube gas design: An air-free hydraulic piston-and-valve area handles control, while a high-pressure nitrogen chamber with a floating piston supports a comfortable ride and quick response.
  • Heavy-duty valving: Components and valving designed specifically for heavy-duty trucks, adding damping over OE for vehicles that work, tow, and run larger, heavier tires and wheels.
  • Up to 25% more damping than original-equipment shocks for firmer control.
  • Triple-chrome-plated piston rod: An ultra-smooth rod helps reduce seal wear, since fluid leaking can be a cause of shock failure.

Worn shocks may show up as excessive bounce, nose dive, or poor body control; if the original rear shock is the cause, this KYB Gas-a-just replaces it. Sold individually; replace both sides as a matched pair for balanced control.

Interchange: 85012 · 66502

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

85012, 66502

Frequently Asked Questions

What is the KYB Gas-a-just KG6199?

It is a rear high-pressure monotube gas shock absorber that separates the nitrogen gas and hydraulic oil for fade-free operation and instant response.

Which vehicles does this KYB shock absorber fit?

It is a direct-fit rear shock for the 1989-1992 Chevrolet W4500 Tiltmaster, 1992-1995 GMC W4500 Forward, and 1986-1995 Isuzu NPR. See the Buyer's Guide tab for engine details.

How does this KYB gas shock absorber differ from a twin-tube shock?

Its monotube design keeps the gas and oil separated, so it resists aeration and fade and can respond quickly compared with traditional twin-tube shocks.

Does it offer more damping than the original shocks?

KYB states the Gas-a-just adds up to 25% more damping performance over original-equipment shocks, with valving designed for heavy-duty trucks that tow and run larger tires.

Do I need to replace both shocks?

This listing is for one shock, sold individually. Replacing both sides on the same axle as a matched pair is recommended for balanced control.