The Makita 143439-5 Circular Saw Air Hose Assembly is a key component designed to support proper air flow within the EK6101 power cutter, contributing to engine cooling and efficient operation. This assembly functions by directing air from the fan housing to specific internal areas, helping to regulate temperature and prevent overheating during extended use. Made to fit precisely within the tool’s design, it ensures consistent performance without interrupting cutting tasks. Replacing a damaged or worn air hose helps maintain optimal air circulation and extends the tool’s service life. This part is essential for ensuring the saw operates safely and efficiently under demanding job site conditions.