• SuperPro Front Control Arm Lower-Inner Rear Bushing Kit
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Superpro Inner Rear Bush Kit | 03-09 4Runner/FJ Cruiser (SPF4346K)

Superpro Inner Rear Bush Kit | 03-09 4Runner/FJ Cruiser (SPF4346K)

SPF4346K

In stock

$115.05 USD
$162.99 USD $115.05 USD
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The SuperPro SPF4346K Inner Rear Bush Kit is a high-quality suspension component designed specifically for the Toyota 4Runner (2003–2009) and FJ Cruiser (2007–2009) equipped with a 4.0L V6 engine. This kit includes durable polyurethane bushings that replace worn-out rubber components in the control arm's lower-inner rear position. Its primary function is to restore proper wheel alignment, improve handling, and enhance overall stability by reducing unwanted movement and play in the suspension system. Constructed from high-performance polyurethane, these bushings offer increased durability, resistance to wear, and long-lasting performance compared to standard rubber parts. The kit is engineered to provide a firm, responsive feel, making it ideal for both daily driving and off-road use where suspension reliability is critical.

Designed as a direct replacement for the original factory bushings, the SPF4346K kit fits specific Toyota 4Runner and FJ Cruiser models within the listed years. It is suitable for vehicles that require suspension upgrades to improve handling or address worn components. The installation involves replacing the existing bushings with these polyurethane units, typically requiring basic hand tools and alignment adjustments afterward. This kit is intended for use on vehicles used in street, off-road, or mixed driving conditions, offering a significant upgrade over worn or degraded factory bushings. The package includes all necessary bushings for the rear control arm, ensuring a straightforward installation process and a reliable, long-term solution for suspension maintenance and performance enhancement.

Overview

Superpro Front Control Arm Lower-Inner Rear Bushing Kit

2003–2009 Toyota 4Runner / 2007–2009 Toyota FJ Cruiser 4.0L V6

Part #: SPF4346K

Overview

The SuperPro Front Control Arm Lower-Inner Rear Bushing Kit is designed to restore and enhance the handling and stability of your Toyota 4Runner and FJ Cruiser. Over time, rubber bushings in the control arms can wear out, leading to compromised wheel alignment, uneven tire wear, and diminished driving confidence. This kit provides a durable, high-performance solution to keep your vehicle's suspension geometry in optimal condition, whether you're restoring a vehicle or upgrading for improved performance.

Engineered for enthusiasts and daily drivers alike, this bushing kit helps maintain proper suspension alignment, ensuring your vehicle responds predictably and handles confidently in all driving conditions. By replacing worn or damaged bushings, you'll experience improved steering feel, reduced vibrations, and enhanced overall ride quality. Whether you're tackling off-road adventures or city commuting, this kit is an essential upgrade for maintaining your vehicle's handling integrity.

Key Features

SuperPro's Front Control Arm Lower-Inner Rear Bushing Kit offers a combination of advanced materials and precise engineering to deliver long-lasting performance and reliability. Key features include:

  • High-Quality Polyurethane Material: Crafted from SuperPro's proprietary polyurethane compound, these bushings provide superior durability and resistance to wear, oil, and environmental factors compared to traditional rubber.
  • Enhanced Suspension Stability: By replacing aging or worn bushings, this kit helps maintain correct control arm geometry, reducing unwanted movement and ensuring consistent handling.
  • Improved Handling and Responsiveness: Restoring proper bushing function results in more precise steering response and better wheel alignment, which can positively influence tire life and driving confidence.
  • Direct Replacement Fitment: Designed specifically for 2003–2009 Toyota 4Runner and 2007–2009 Toyota FJ Cruiser models, ensuring a perfect fit and straightforward installation.
  • Corrosion and Environmental Resistance: The polyurethane formulation resists cracking, deformation, and deterioration caused by exposure to road salts, oils, and other contaminants.
  • Reduced Noise, Vibration, and Harshness (NVH): Unlike traditional rubber bushings, SuperPro polyurethane provides a firmer feel without excessive noise or vibration transfer.
  • Rebuild or Upgrade: Ideal for restoring factory ride quality or upgrading suspension components for spirited driving or off-road use.

Construction & Design

This bushing kit features a precision-engineered design utilizing SuperPro's advanced polyurethane material, which offers a significant upgrade over factory rubber components. The bushings are molded to exact specifications, ensuring a perfect fit and consistent performance. The one-piece construction enhances strength and durability, while the high-quality polyurethane resists compression set, cracking, and deterioration over time. The design also incorporates features to minimize unwanted movement and noise, providing a stable and quiet ride.

Performance & Benefits

Replacing worn control arm bushings with the SuperPro kit restores the original handling characteristics of your vehicle, or even improves upon them. Expect enhanced steering response, better wheel alignment retention, and increased resistance to suspension deflection. The polyurethane material maintains its shape and firmness under demanding driving conditions, supporting increased stability during cornering, braking, and off-road excursions. This upgrade can also extend the lifespan of your suspension components by reducing metal-on-metal wear and preventing excessive movement.

Installation & Fitment

The SuperPro Front Control Arm Lower-Inner Rear Bushing Kit is designed as a direct bolt-on replacement, making installation straightforward for those with basic mechanical skills. No cutting, drilling, or complex modifications are required. It is recommended to use proper suspension alignment procedures after installation to ensure optimal handling and tire wear. For best results, professional installation is advised, especially if your vehicle has experienced significant suspension wear or damage.

  • Easy, bolt-on installation with standard tools
  • No special modifications or tuning required
  • Suitable for DIY enthusiasts and professional mechanics

What's Included

  • Complete set of polyurethane bushings for the front control arm lower-inner rear positions
  • Installation hardware and components necessary for proper fitment
  • Comprehensive instructions for installation and setup

Ideal For

  • Owners restoring or maintaining their Toyota 4Runner or FJ Cruiser
  • Performance enthusiasts seeking improved handling and stability
  • Off-road adventurers needing durable suspension components
  • Anyone looking to eliminate suspension clunking or uneven tire wear caused by worn bushings
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