Caterpillar connecting rod 8N1721 China manufacturer supplier Caterpillar 3304 3306 engine parts excavator 225 235 330 components

◆ Product Overview
A precision-forged, heavy-duty connecting rod engineered for the legendary Caterpillar 3304 and 3306 industrial diesel engines. This critical component from a certified China manufacturer serves as a direct replacement for OEM part number 8N1721. Specifically designed for the extreme demands of earthmoving and construction, it provides reliable performance for engine overhauls and rebuilds in Caterpillar excavator models 225, 235, 235B, 330, 330 FM L, 330 L, 330B, 330B L, 350, and other compatible heavy machinery.

◆ Manufacturer Information
✓ Manufacturer Type: China Heavy Earthmoving Machinery Parts Specialist
✓ Certification: ISO 9001:2015, IATF 16949 Certified
✓ Specialization: Caterpillar 3300 Series Engine Components
✓ Supply Model: Factory Direct to Global Construction & Mining Equipment Markets

◆ Part Number & Application
✓ OEM Part Number: 8N1721
✓ Engine Models: Caterpillar 3304, 3306 Industrial Diesel Engines
✓ Host Equipment: Caterpillar Excavator Series (225, 235, 235B, 330, 330 FM L, 330 L, 330B, 330B L, 350)
✓ Application: Major Engine Overhaul, Rebuild, and Critical Repair

◆ Product Specifications
✓ Product Type: Heavy-Duty Forged Connecting Rod Assembly
✓ Condition: 100% New, Factory Direct Quality
✓ Manufacturer Origin: China Precision Heavy Industry Manufacturing
✓ OEM Reference: Direct Replacement for Caterpillar 8N1721 Specifications
✓ Key Feature: Engineered for high-compression, continuous heavy-load operation in excavators

◆ Manufacturing Advantages
✓ 3300 Series Expertise: Specialized focus on Caterpillar's renowned 3304/3306 engine platform for heavy equipment.
✓ Premium Forging Technology: Utilizes advanced forging processes for superior grain structure and fatigue life.
✓ Material Excellence: High-grade alloy steel, meticulously heat-treated for maximum strength and durability.
✓ Precision Machining: State-of-the-art CNC machining ensures perfect fitment and balance for smooth operation.
✓ Rugged Application Validation: Products are tested against simulated excavator high-load and high-vibration cycles.

◆ Quality Assurance Process
✓ Certified material sourcing from mills specializing in heavy industrial forgings.
✓ Full-dimensional inspection using Coordinate Measuring Machines (CMM) against OEM master specifications.
✓ Precise weight matching and balancing critical for smooth high-inertia engine operation.
✓ Advanced surface treatments including shot peening for enhanced fatigue resistance.
✓ Rigorous performance testing under conditions simulating excavator duty cycles.

◆ Supply Chain Management
✓ Production Capacity: Dedicated high-volume line for heavy equipment engine components.
✓ Lead Time: 40-50 days for premium forged heavy-duty parts.
✓ Minimum Order: Competitive MOQ for construction machinery distributors and large dealers.
✓ Packaging: Heavy-duty, climate-controlled packaging for international shipping.
✓ Logistics: Specialized logistics capable of delivery to remote construction and mining sites.

◆ Technical Support Services
✓ Detailed application guides for Caterpillar excavator model compatibility (225, 235, 330 series, etc.).
✓ Comprehensive installation guidelines and torque specifications.
✓ Engineering support for major equipment rebuild facilities and OEM service networks.

◆ Market Applications
✓ Excavator Dealerships & Service Centers: Essential for maintaining Caterpillar 200/300 series excavator fleets.
✓ Mining & Heavy Construction: Critical component for in-house maintenance of high-uptime machinery.
✓ Heavy Equipment Parts Distributors: High-value inventory for the global Caterpillar aftermarket.