Shop Toyota 4 Runner Transmissions. Find Toyota 4 Runner Gearbox Parts Catalog & Toyota 4 Runner Manual Transmission Components. Ensuring the longevity of your Toyota 4Runner's transmission components begins with regular maintenance, such as timely fluid changes and listening for unusual noises, which might signal the need for replacement. When selecting new transmission parts, consider the durability offered by OEM-quality gearsets and torque converters, which are engineered to match your vehicle's specifications. Enhanced material quality in aftermarket options can offer improved performance. For seamless integration, always verify compatibility with your 4Runner model and year, and follow manufacturer guidelines to guarantee a smooth installation. Shop with us for premium transmission components and secure a smooth, reliable drive, every time.