Heavy Equipment & Generators

Used Caterpillar 3512 Generator: Sell or Buy at Auction

Caterpillar is the world's largest manufacturer of construction and mining equipment, and a major producer of diesel and gas engines and industrial generators. Cat equipment is the most recognizable heavy equipment brand globally, with unmatched parts availability and dealer network creating extremely liquid used equipment markets.

The Caterpillar 3512 is a V-12 diesel generator set from Cat's heavy-duty 3500 series, sitting above the V-8 3508 and below the V-16 3516 in the lineup. On the common 3512B and 3512C builds it displaces about 51.8 liters (170 mm bore by 190 mm stroke) and turns 1,500 rpm at 50 Hz or 1,800 rpm at 60 Hz, with most standby and prime ratings landing in roughly the 1,000 to 1,600 ekW class depending on frequency and revision; later versions such as the 3512E displace more and reach higher output. It is the set oil and gas operators, data center and industrial plant engineers, and power generation rental fleets specify when a smaller genset cannot carry the load, which is the seller and buyer profile a KD Auctions sale draws for this model. Large-frame Cat sets like the 3512 also pull international interest from markets where dealer-backed diesel power is scarce and proven reliability matters more than the newest technology, and KD Auctions' reach of 500,000+ industry contacts puts the listing in front of that demand. Because the 3500 series shares broad parts commonality and service familiarity across a large worldwide installed base, a well-maintained 3512 with clean, documented run hours and complete service records tends to see active, competitive bidding.

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