Add heavy-duty damping to the front of your truck with the KYB MonoMax High Pressure Monotube Gas Strut 564002, a direct-fit front replacement for the 1996-2002 Toyota 4Runner (see the Buyer's Guide tab for engine-level fitment). The large-bore MonoMax is a monotube design built for vehicles that do real work, go off-road, tow a trailer, or haul heavy loads, and its tough design automatically adjusts to driving conditions with fade-free performance.
- Large-bore monotube: a heavy-duty design that delivers up to 40% more damping performance than standard shock absorbers for added stability on heavier, more powerful, or high-center-of-gravity vehicles.
- Zinc-coated stainless steel piston ring: provides a positive seal in the most extreme conditions.
- Rubber dust boot: protects the shaft and helps keep dirt and debris away from the seals.
- Electronic-system aware: engineered to help vehicles equipped with electronic safety systems such as ESC and ABS.
To reduce the chance of noise and vibration, KYB recommends installing new strut mounts, part number SM5184. Worn front struts can show up as excessive bounce, poor ride control, or reduced stability under load — if the original front strut is the cause, this replaces it.
Interchange: G51077 · 4851039436
This part cross-references / interchanges with the following part numbers:
Frequently Asked Questions
What vehicle does the KYB 564002 fit?
It is a direct-fit front strut for the 1996-2002 Toyota 4Runner. Check the Buyer's Guide tab to confirm the exact application for your vehicle.
What position does this strut install in?
The KYB MonoMax 564002 is a front unit. Struts are best replaced as a matched pair for balanced ride and handling; this listing is for one strut.
What makes the MonoMax different from a standard shock?
It uses a large-bore monotube design that provides up to 40% more damping performance than standard shock absorbers, aimed at trucks that tow, haul, or go off-road.
Does it help protect against dirt and debris?
Yes. A rubber dust boot protects the shaft and helps keep dirt and debris away from the seals, and the zinc-coated stainless steel piston ring provides a positive seal.
Should I replace the strut mounts too?
To reduce the chance of noise and vibration, KYB recommends installing new strut mounts, part number SM5184, when fitting this strut.
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