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The Gates Micro-V high-capacity V-belt is a replacement accessory belt for 1987–1998 Peterbilt 379 trucks equipped with Caterpillar 3406 diesel engines, covering alternator and A.C. duties. Offered as a standard high-capacity option, it fits the accessory routing used on those model years and is intended as a direct-fit service replacement. The product preserves the heavy-truck application for fitment clarity.
Gates 87-98 Peterbilt 379 Caterpillar 3406 Diesel Alt. & A.C. High Capacity V-Belt (Standard)
