321-8940: Alternator

Cat® Alternators are designed to energize the battery to power your machine, regardless of operating conditions. They are proven top-notch tough, durable and reliable, even at low idle. There are two categories: Brush-Type Design uses one-piece brushes for less maintenance, and constant-pressure springs for even brush wear; and our Brushless Design, with fewer moving parts, tighter air gap tolerances and superior sealing for longer life in harsh environments (dirt, dust, heat or cold). Cat Alternators are quiet, compact, and lightweight, designed to be part of a balanced electrical system, and each unit is rigorously tested, so you know you’re getting genuine Cat reliability. Off-the-shelf availability minimizes your down time, and all Cat diesel engine parts come with a full 12-month warranty. Electronic voltage regulators and a high-efficiency cooling system are built in. You can have peace of mind with a full 12-month warranty on our Cat components. Our off-the-shelf availability minimizes downtime and gets you up and running fast. You’re buying less downtime and lower repair bills, helping you achieve the lowest owning and operating costs over your engine’s lifecycle.