Cummins camshaft 3976620 3976619 China manufacturer supplier Cummins ISLE 6L 6L8.9 QSL8.9 engine parts

◆ Product Overview
A premium, high-precision camshaft engineered for the advanced Cummins ISLE 6L (6L8.9) and QSL8.9 series of heavy-duty diesel engines. This critical component from a certified China manufacturer serves as a direct replacement for OEM part numbers 3976620 and 3976619. Designed for modern electronic and high-performance applications, it restores precise valve timing and engine performance for major overhauls and rebuilds in commercial trucks, buses, and industrial power units, ensuring optimal power, efficiency, and emission compliance.

◆ Manufacturer Information
✓ Manufacturer Type: China Modern Heavy-Duty Engine Parts Specialist
✓ Certification: ISO 9001:2015, IATF 16949 Certified
✓ Specialization: Cummins ISL/QSL Series Engine Components
✓ Supply Model: Factory Direct to Global Trucking, Bus & Industrial Markets

◆ Part Number & Application
✓ OEM Part Numbers: 3976620, 3976619
✓ Engine Models: Cummins ISLE 6L (6L8.9), QSL8.9 Diesel Engines
✓ Application: Complete Engine Overhaul & Major Rebuild
✓ Primary Use: Heavy-Duty Trucks, City & Intercity Buses, Industrial Generator Sets, Marine Auxiliary Power

◆ Product Specifications
✓ Product Type: High-Precision Engine Camshaft
✓ Condition: 100% New, Factory Direct Quality
✓ Manufacturer Origin: China Precision CNC Manufacturing
✓ OEM Reference: Direct Replacement for Cummins ISLE 6L / QSL8.9 Specifications
✓ Key Feature: Precision-ground to meet the specific performance and emission profiles of modern electronic engines

◆ Manufacturing Advantages
✓ ISLE/QSL Platform Expertise: Specialized knowledge of the cam profiles and hardening requirements for Cummins' advanced 8.9-liter electronic engine platform.
✓ Precision Grinding Technology: Utilizes state-of-the-art CNC cam grinding to replicate exact OEM lobe profiles, critical for maintaining engine power, fuel economy, and meeting emission standards (e.g., EPA, Euro).
✓ Material & Heat Treatment: Manufactured from high-grade alloy steel with precise induction hardening on lobes and journals for superior wear resistance in high-mileage and high-stress applications.
✓ Rigorous Electronic Engine Validation: Quality control processes account for the precise timing requirements of electronically controlled fuel systems.
✓ Global Aftermarket Support: Production aligns with the needs of the worldwide service network for these popular engine series.

◆ Quality Assurance Process
✓ Material certification from accredited suppliers of high-performance camshaft steel.
✓ Full-profile inspection using optical comparators and CMM against Cummins master specifications.
✓ Hardness depth and value testing on all lobes and journals to ensure durability.
✓ Surface finish and micro-geometry analysis for optimal lubrication.
✓ Comprehensive dimensional and run-out inspection for perfect fitment.

◆ Supply Chain Management
✓ Production Capacity: Dedicated precision line for modern heavy-duty engine components.
✓ Lead Time: 45-55 days for precision grinding and hardening processes.
✓ Minimum Order: Competitive MOQ for truck, bus, and industrial parts distributors.
✓ Packaging: Custom protective packaging to prevent damage to precision-ground surfaces.
✓ Logistics: Efficient global shipping to major transportation and industrial hubs.

◆ Technical Support Services
✓ Clear application guide for ISLE 6L and QSL8.9 engine models.
✓ Installation guidelines including timing procedure specifications.

◆ Market Applications
✓ Heavy Truck & Bus Fleet Maintenance: Essential for overhauling engines in long-haul trucks and public transport buses.
✓ Industrial Power Generation: Critical component for generator set engine rebuilds.
✓ Global Cummins Parts Distributors: Key inventory item for the modern Cummins aftermarket.