We supply premium aftermarket CAT C11 crankshaft, OE part numbers 313-3996, 221-9362, 207-8503, perfectly matched with CAT C11 diesel engine. This crankshaft is the core rotating component for heavy construction machinery, widely sold to repair shops, fleet companies, machinery importers across USA, Canada, UK, Australia, Germany, France and Southeast Asia.

Made of high-strength forged alloy steel, our C11 crankshaft converts piston reciprocating motion into stable rotary power, resisting heavy load, high temperature and long-hour continuous operation. As direct engine parts factory, we keep large stock for fast dispatch to all global regions.

• OEM 1:1 Replacement Size: Exact journal dimension matches original CAT C11 engine, no modification needed, compatible with main bearings & connecting rod bearings
• Premium Forged Alloy Steel: Core quenched & tempered, excellent anti-fatigue, torsion resistance, extend engine service life
• Precision CNC Machining: Strict grinding & dynamic balance test, low vibration, stable running for loader, grader, mining truck
• Complete Inspection Before Shipment: Every CAT C11 crankshaft passed pressure, wear and tolerance testing
• Global Logistics Support: Free standard shipping to United States, express fast delivery to Europe, sea bulk freight for wholesale importers
• 12 Months Quality Warranty: Free replacement support for defective crankshaft for worldwide buyers
• Factory Direct Supply: No middle markup, competitive bulk price for machinery stores & repair fleets

CAT C11 Diesel Engine

313-3996, 221-9362, 207-8503, 10R-3075, 524-1285

• Wheel Loader: CAT 966H
• Motor Grader: CAT 14M
• Articulated Truck: CAT 725, 730
• LHD Mining Machine: R1600H, R1700G
• Petroleum Equipment: CX31-C11I, RM-300 Rotary Mixer

We are a professional factory specializing in CAT heavy-duty engine spare parts for over 10 years, serving thousands of machinery repair businesses from North America, Europe and Oceania.

• Large in-stock inventory, ship CAT C11 crankshaft within 24 working hours after payment
• Support private label & customized wooden packaging for bulk wholesale orders
• Professional engineer team online 24/7 to confirm compatibility for US, UK, AU customers
• Stable supply chain, fast sea & air shipping to all major industrial cities: Texas, California, London, Sydney, Toronto
• Strict ISO 9001 quality control system, consistent quality for engine overhaul projects