4N7692 Crankshaft W/1W9812 GEAR Fits Caterpillar Fits CAT 120G 130G D4E D4H D5HOne New Aftermarket Replacement Forged Crankshaft with 1W9812 Timing Gear Fits Caterpillar (Fits CAT) 3304 Engine This aftermarket replacement forged crankshaft includes the 1W9812 40 tooth left hand helix timing gear and is designed for the Fits Caterpillar 3304 4 cylinder diesel engine (7. 0L 425 CID). The 3304 engine powers a wide range of Fits CAT motor graders, track type tractors, and other heavy construction equipment. This is a direct fit