Toyota Mark X GRX 130/133 (2009–2012). 721003 rear electric shock absorber Compatible with OEM 48530-22660, 48530-22661, 48530-22661A, 48530-80545, 48530-80612. OE-grade AVS electronic suspension damper at affordable price in Nairobi Kenya.

Product Overview

The KYB 721003 rear electric shock absorber is a precision OE replacement designed for the Toyota Mark X GRX130 / GRX133 (2009–2012) equipped with factory electronic / AVS suspension systems.

This damper restores original Toyota adaptive suspension performance by maintaining correct electronic damping response, ensuring stability, ride comfort, and proper rear axle control under all driving conditions.

Manufactured by KYB, it delivers OE-level damping accuracy with long-term durability for demanding road environments.

Vehicle Application

• Make: Toyota

• Model: Mark X

• Chassis: GRX130 / GRX133

• Year: 2009–2012

• Suspension Type: Electric / AVS electronic damping system

• Position: Rear Axle (Left / Right depending on configuration)

KYB Part Number

• KYB 721003 – Rear Electric Shock Absorber

OEM Cross Reference Numbers

This KYB 721003 directly cross-references the following Toyota OEM part numbers:

• 48530-22660

• 48530-22661

• 48530-22661A

• 48530-80545

• 48530-80612

These OEM numbers confirm compatibility with Toyota Mark X GRX130 / GRX133 electronically controlled rear suspension systems.

Key Features

• OE-spec rear electric shock absorber

• Fully compatible with Toyota AVS electronic suspension system

• Restores factory adaptive damping behavior

• Gas-pressure twin-tube damping technology

• Improved rear stability under load and cornering

• Reduced vibration, bounce, and instability

• Enhanced braking and high-speed control

• Durable KYB sealing and internal valve design

Technical Specifications

• Brand: KYB

• Type: Electronic / AVS-compatible shock absorber

• Design: Gas Pressure Twin-Tube

• Fitment: Rear Axle

• Installation: Direct OE replacement

• Condition: New OE-quality aftermarket

Fitment Note (Critical)

Fits ONLY:

• Toyota Mark X GRX130 / GRX133

• Model years 2009–2012

• Vehicles equipped with ELECTRIC / AVS suspension

⚠️ Non-electronic suspension models use different shock absorbers and are not compatible.

Why This Matters

Electronic suspension systems rely on precise damping calibration. Using incorrect shocks may cause:

• Suspension warning lights

• Loss of adaptive ride function

• Poor handling stability

• Uneven rear axle performance

KYB OE-grade 721003 ensures full restoration of Toyota’s original suspension engineering intent.

The KYB 721003 rear electric shock absorber is the correct OE-grade replacement for Toyota Mark X GRX130 / GRX133 (2009–2012), fully compatible with OEM part numbers 48530-22660 / 22661 / 22661A / 80545 / 80612, restoring factory-level electronic suspension performance, comfort, and stability.