One New Aftermarket Replacement Crankshaft for Caterpillar (Cat) 3412 Series EnginesThis aftermarket replacement crankshaft assembly (CRANKSHAFT AS) fits Caterpillar equipment powered by the 3412, 3412C, and 3412E V-12 diesel engines. The Caterpillar 3412 is a 27.0-liter, 1,649 CID, 12-cylinder engine used across a wide range of heavy construction, mining, and industrial machines. This crankshaft is a direct replacement for OEM part number 2W-4088.Specifications Dimensions: 135 x 3 x 43 Weight: approximately 452 lbs (205 kg) Engine Family: Caterpillar 3412 Series (V-12, 27.0L) Compatible ModelsCaterpillar Motor Graders: 24HCaterpillar Track-Type Tractors: D9L, D10N, D10RCaterpillar Wheel Loaders: 844, 990, 990 II, 992C, 992DCaterpillar Off-Highway Trucks: 773B, 773D, 775B, 775DCaterpillar Wheel Tractor-Scrapers: 651E, 657ECaterpillar Industrial / Gas Engines: G3412, G3412CCaterpillar Cold Planers / Pavers: PR-750B, PR-1000Caterpillar Paving Equipment: SCT673, SPS342, SPT342Replaces Part Number(s):2W4088, 2W-4088Aftermarket Interchange Numbers384-9966, 4N7755, 151-2941, 1W6213New aftermarket replacement part - not remanufactured, not used.