Product Description: Premium CDI Unit for Enhanced ATV Performance Revitalize Your ATV's Ignition System with Our High-Quality CDI Ignition Box Fitment: This CDI unit is an ideal replacement for the following models: KSF400 ATV (2003‑2004) Suzuki LT‑Z400 Quadsport 398cc (2003‑2007) Suzuki LT‑Z400Z Quadsport 398cc (2003‑2007) Ensure compatibility with your ATV to achieve seamless integration and optimal performance. OEM: The reference OEM numbers for this CDI unit are 32900‑07G00, 495352, and 160‑02054. Please verify these part numbers with your existing component to ensure a perfect fit and hassle-free installation. Excellent Performance: Designed to enhance engine functionality, this new CDI box quickly starts the engine and efficiently transmits information through sensors. It controls the ignition system to improve the response speed and stability of your engine, providing a smoother and more reliable ride. Durable Serving: Meeting all OEM standards, this CDI unit features a robust housing and harness protective sleeve that withstands severe conditions. Its durable construction ensures a long service life, making it a reliable choice for maintaining your ATV's performance. Direct Replacement: Crafted for quick and easy substitution, this CDI unit allows you to replace old or damaged components so your engine can resume operation swiftly. Experience minimal downtime and restored engine efficiency with this direct replacement part. Upgrade your ATV's ignition system with this premium CDI unit. Combining precision engineering, durable materials, and straightforward installation, it is essential for maintaining and enhancing your vehicle's efficiency and reliability.