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Eliminate Sway Bar Slop and Restore KDSS Function on GX460 and 4Runner Builds with Polyurethane Mount Bushings
The SuperPro SPRSPF5727-30K is a rear 30mm KDSS sway bar mount bushing set engineered for the 2010-2023 Lexus GX460 and 2010-2024 Toyota 4Runner equipped with the Kinetic Dynamic Suspension System. The OEM rubber sway bar mount bushings are prone to accelerated wear on KDSS-equipped platforms due to the active sway bar movement the KDSS system generates during articulation, leading to clunking, loose sway bar positioning, and reduced effectiveness of the KDSS system over time. The SPRSPF5727-30K replaces both mount positions with SuperPro's polyurethane compound, which resists oil contamination, load fatigue, and UV degradation that destroy factory rubber over time. SuperPro's grease retention design is built into each bushing for lifetime silent operation. The SPRSPF5727-30K is a direct OEM-fit replacement, designed to drop into the factory sway bar mount hardware without modification. Both mounts are covered in this kit.
Key Features
- Polyurethane construction resists oil, UV, and wear that destroys OEM rubber sway bar bushings
- Built-in grease retention design for smooth and quiet operation for the life of the bushing
- Direct OEM-fit for KDSS-equipped Lexus GX460 and Toyota 4Runner rear sway bar mount positions
- 30mm bushing diameter matches OEM KDSS rear sway bar specification
- Designed to maintain proper KDSS sway bar function under all articulation loads
- No drilling or modification to OEM hardware required
- Lifetime warranty from SuperPro
Fitment
| Year Range | Make | Model |
|---|---|---|
| 2010-2023 | Lexus | GX460 |
| 2010-2024 | Toyota | 4Runner |
Specifications
| Detail | Value |
|---|---|
| Part Number | SPRSPF5727-30K |
| Brand | SuperPro |
| Material | Polyurethane |
| Bushing Diameter | 30mm |
| Position | Rear Sway Bar Mount |
| System | KDSS (Kinetic Dynamic Suspension System) |
| Coverage | Both Mount Positions |
| Warranty | Lifetime |
| UPC | N/A |
What's Included
- SPRSPF5727-30K polyurethane rear 30mm KDSS sway bar mount bushing set (both positions)
About SuperPro
SuperPro has been engineering polyurethane suspension components in Australia for nearly 50 years. SuperPro's catalog covers thousands of applications across 4x4, off-road, and passenger car platforms worldwide. The SPRSPF5727-30K is engineered specifically for the Toyota/Lexus KDSS platform, reflecting SuperPro's deep catalog of dedicated suspension solutions for the GX460, 4Runner, FJ Cruiser, and Land Cruiser Prado product lines. All SuperPro bushings carry a lifetime warranty.
Frequently Asked Questions
What KDSS vehicles does the SPRSPF5727-30K fit?The SPRSPF5727-30K fits the 2010-2023 Lexus GX460 and 2010-2024 Toyota 4Runner equipped with the Kinetic Dynamic Suspension System. It is not for non-KDSS models as the sway bar mount hardware and bushing dimensions differ between KDSS and standard suspension configurations.
What symptoms indicate worn sway bar mount bushings on a KDSS 4Runner or GX460?Common symptoms include clunking or knocking from the rear suspension during articulation or while driving over uneven surfaces, excessive sway bar movement at the mount bracket, and reduced KDSS effectiveness during off-road articulation. Inspecting the mount bushings visually for cracking, tearing, or excessive play will confirm bushing condition.
Does the SPRSPF5727-30K fit KDSS and non-KDSS 4Runner models?The SPRSPF5727-30K is specifically designed for KDSS-equipped 4Runner and GX460 models. The KDSS rear sway bar uses a 30mm mount bushing position. Non-KDSS models use a different sway bar configuration and require a different bushing part number.
Will the SPRSPF5727-30K affect the KDSS system's normal operation?No. The SPRSPF5727-30K is engineered to maintain the sway bar mount geometry required for normal KDSS system function. SuperPro's bushing compound provides the compliance needed to support sway bar movement during KDSS articulation without binding or stiffening the mount excessively.
How long do the factory KDSS sway bar mount bushings typically last?OEM rubber sway bar bushings on KDSS-equipped platforms typically show wear between 80,000 and 150,000 miles depending on off-road use intensity. KDSS-equipped vehicles used frequently off-road experience higher bushing wear rates due to the active sway bar movement the system generates during articulation events.
Does the SPRSPF5727-30K require any special tools for installation?No special press tools are required for sway bar mount bushing replacement. The mount bushing is typically retained by a U-bolt or clamp bracket that is removed to access and replace the bushing. Basic hand tools and a torque wrench for the mount hardware are sufficient for this installation.
Does the SPRSPF5727-30K fit the 2024 or newer Toyota 4Runner?The SPRSPF5727-30K is confirmed for 2010-2024 Toyota 4Runner. If you have a 2025 or newer 4Runner, verify compatibility with SuperPro directly as newer model years may use updated suspension hardware specifications.
Is a wheel alignment needed after installing the SPRSPF5727-30K?Sway bar mount bushing replacement does not affect alignment geometry directly, so a full alignment is generally not required specifically for this installation. However, if other suspension work is performed at the same time, a four-wheel alignment is always recommended as a best practice.
Installation Instructions
- Safely lift and support the rear of the vehicle and allow the rear suspension to hang freely for access to the sway bar mount area.
- Locate the KDSS rear sway bar mount brackets. There are two mount positions, one on each side of the rear sway bar.
- Remove the U-bolt or clamp bracket hardware retaining the sway bar mount bushing at each position.
- Slide the old rubber bushing off the sway bar bar stock and discard.
- Inspect the sway bar at each mount position for scoring or damage before installing the new bushings.
- Lightly grease the SPRSPF5727-30K polyurethane bushings using the grease points built into the bushing design before installation.
- Slide the SPRSPF5727-30K bushings onto the sway bar at both mount positions and seat them in the mount bracket.
- Reinstall the U-bolt or clamp bracket hardware and torque to OEM specification. Do not over-torque as this can deform the bushing profile.
- Lower the vehicle and test drive to confirm the clunking or looseness is resolved.
WARNING: This product can expose you to chemicals including lead and phthalates, which are known to the State of California to cause cancer and reproductive harm. For more information go to www.P65Warnings.ca.gov.
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