4D3734 Union for Caterpillar Equipment

The 4D3734 Union is a fluid fitting used on Caterpillar equipment, including engines, generators, material-handling machines, trucks, tractors, loaders, graders, scrapers and excavators. This is a new aftermarket spare part manufactured by CTP (Costex Tractor Parts).

The listed applications cover multiple Caterpillar machine series and model configurations. The part is identified by SKU 4D3734 and belongs to the Fluid Fittings & Adapters category.

Fitment

• Generator Set: C18
• Marine Engine: Caterpillar marine engine applications
• Mining Excavator: 5230, 5230B
• Motor Grader: 120, 120B, 120M, 12H, 140, 140B, 140H, 14G, 16, 160H, 16H
• Quarry Truck: 771C, 771D, 775B, 775D
• Track-Type Tractor: D9G, D9H
• Tractor: 768B, 768C, 772, 772B, 776, 776C, 776D, 784B, 784C
• Truck: 69D, 769, 769C, 769D, 770, 772, 772G, 772G OEM, 773, 773B, 773D, 773E, 775D, 775E, 777, 777B, 777D, 785, 785B, 785C, 785D, 789, 789B, 789C, 789D, 793, 793B, 793C, 793D, 793F, 793F AC, 793F CMD, 793F OEM, 795F AC, 797, 797B
• Wheel Loader: 980C, 980F, 980F II, 994H
• Wheel Scraper: 621E, 623E, 623F, 623G, 627E, 633D, 657, 657B, 666
• Wheel Tractor: 613C, 621B, 621E, 621F, 621G, 623E, 623G, 627E, 627F, 631C, 631E, 631G, 633C, 633E II, 637, 637D, 637E, 637G, 641, 641B, 650B, 651, 651E, 657, 657B, 657E, 657G, 666, 666B

Specifications