KSP 0-2ft OEM Upper Control Arms for Toyota 4Runner 2003-2023

In this review the KSP 0-2' OEM Upper Control Arms are evaluated as a direct replacement and mild lift upgrade for Toyota 4Runner, FJ Cruiser, Land Cruiser Prado and Lexus GX models. The bottom line: these arms are for owners who want a stronger, tubed OE upgrade built from 1.25' DOM tubing and a zinc-nickel ball joint to improve front suspension durability and handling while keeping a 0-2' lift compatibility. The review focuses on build quality, fitment, and real-world value based on customer feedback and the manufacturer's claims.

Key Features

• OE Replacement: Directly replaces OE part numbers including 4806629225 and 4806729225 for correct function with factory mounts.
• Tube Construction: Built from 1.25' DOM tubing for a stronger structure than stamped or molded factory arms, which improves safety and predictability of steering response.
• Corrosion Resistance: Zinc-nickel ball joint and professional outdoor powder coat reduce rust and extend service life under road exposure.
• Bushing Design: Durable PU bushing with a low-temperature U groove reduces noise and oil leakage for a smoother ride feel similar to factory texture.
• Lift Compatibility: Designed for 0-2' lift setups so it can replace stock arms without requiring major alignment changes beyond normal shop adjustments.
• Warranty Support: KSP offers a 30-day refund and 1-year replacement parts promise, and new ball joints require no extra grease within the first year.

Who It's For

This product is best for Toyota and Lexus owners running stock to mild 0-2' lifts who want a robust, long-lasting front upper control arm that improves handling and reduces premature tire wear. It suits DIY mechanics and shops that prefer tubed, weld-reinforced parts over stamped steel or molded pieces for off-road or daily driving use.

Those who need a guaranteed perfect fit every time should be aware that some customers reported mixed fitment results, so buyers with exacting OEM fit expectations or unusual aftermarket lift geometry may want to confirm compatibility with their vehicle VIN or consult a fitter before purchase.

Pros & Cons

Pros

• Sturdy 1.25' DOM tubing gives a clearly stronger feel than stamped OEM arms.
• Durable PU bushings and zinc-nickel ball joint improve longevity and rust resistance.
• Easy installation is commonly reported, making it good value for replacement ball joints and arms.
• Designed to work with 0-2' lifts while retaining factory-style driving feel.

Cons

• Fitment is mixed in customer reports, so some users may need minor adjustments or verification before installation.
• As an OE upgrade, finish and appearance may differ from factory parts if painted or customized.

Specifications

Fitment	Toyota 4Runner 2003-2023, FJ Cruiser 2006-2016, Land Cruiser Prado J120/J150, Lexus GX J120/J150
OE Crosses	Includes 4806629225, 4806729225 and several related OEM numbers
Construction	1.25' DOM tubing with welded reinforcement
Bushing	Durable PU bushing with low-temperature U groove design
Ball Joint	Zinc-nickel alloy treated ball joint for enhanced anti-rust ability
Lift Range	Compatible with 0-2' lift setups
Warranty	30-day refund and 1-year free replacement parts

Our Verdict

The KSP 0-2' OEM Upper Control Arms are a sensible OE upgrade for owners seeking stronger, tubed replacement arms that improve front suspension durability and handling for stock to mild lifts. Given the reinforced construction, corrosion-resistant ball joint, and favorable reports on installation and value, they represent good value for most Toyota and Lexus owners, provided fitment is checked beforehand.

Frequently Asked Questions

Do these arms require modification for a 2' lift?
They are rated for 0-2' lifts and are designed to directly replace stock arms in most mild lift setups, though proper alignment is recommended after installation.

Will the new ball joint need regular greasing?
KSP states the new ball joint does not need extra grease for the first year, but routine maintenance thereafter follows normal service intervals.

Are these arms noticeably stronger than OEM?
Yes; the 1.25' DOM tube construction and MIG-welded reinforcements provide a stronger structure than stamped or molded factory arms.