KYB Suspension Shock Absorber KG4012
KYB Suspension Shock Absorber KG4012

KYB Suspension Shock Absorber P/N:KG4012

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$77.99
MPN: KG4012
UPC: 781552040125
Item Package Quantity: 1
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KYB Suspension Shock Absorber P/N:KG4012
KYB Suspension Shock Absorber P/N:KG4012
$77.99

Firm up rear ride control with the KYB Gas-a-just Suspension Shock Absorber KG4012, a high-pressure monotube gas shock for cars and trucks. It installs in the rear position on the 1975-1979 Chevrolet LUV, 1972-1974 Chevrolet LUV Pickup, 1986-1987 Mazda B2000, 1987-1993 Mazda B2200, 1987-1993 Mazda B2600, 1986-1994 Nissan D21, 1998-2001 Nissan Frontier, 1995-1997 Nissan Pickup, 1967-1970 and 1973-1978 Toyota Corona, 1972-1976 Toyota Mark II, and 1984-1995 Toyota Pickup — see the Buyer's Guide tab for engine specifics.

  • Monotube design: Separates the gas and oil for fade-free operation and instant response, with an air-free hydraulic piston area for control and a high-pressure nitrogen chamber with a floating piston.
  • Triple chrome-plated piston rod: An ultra-smooth rod reduces seal wear, since fluid leaking can cause shock failure.
  • Quick steering response: The higher gas pressure of the Gas-a-just responds quickly to improve steering response and helps keep electronic safety systems performing as designed.
  • Truck-ready damping: Components and valving designed specifically for trucks, adding up to 25% more damping over OE for vehicles that work, tow, and run larger, heavier tires and wheels.

Interchange: 77902 · 911530

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

77902, 911530

Frequently Asked Questions

What position does this shock fit?

The KYB Gas-a-just KG4012 installs in the rear position on the listed applications. Shocks are best replaced as a matched pair for balanced ride control.

What is a monotube gas shock?

A monotube design keeps the high-pressure nitrogen gas and oil in separate chambers, which supports fade-free operation and instant response versus a traditional twin-tube shock.

What does the triple chrome-plated piston rod do?

The ultra-smooth, triple chrome-plated piston rod is designed to reduce seal wear. Since fluid leaking can cause shock failure, a smoother rod helps protect the seal.

Is this shock a good choice for a work truck?

Its components and valving are designed specifically for trucks and add up to 25% more damping over OE, intended for vehicles that work, tow, and run larger, heavier tires and wheels.

What are signs the rear shocks may need replacing?

Excessive bouncing, a harsh or unsettled ride, uneven tire wear, or fluid seepage can be signs a shock may need replacing. Diagnose the cause before replacing.

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