Cummins crankshaft C3965010 3965010 ISL crankshaft ISLE crankshaft QSL crankshaft QSLe crankshaft L375 engine crankshaft Cummins 6L engine parts

◆ Product Overview
A heavy-duty, precision-manufactured crankshaft designed for the versatile Cummins 6L engine platform, including ISL, ISLE, QSL, QSLe, and legacy L375 models. Manufactured as a direct OEM replacement for part numbers C3965010 and 3965010, this component is engineered to deliver original equipment durability, performance, and reliability in on-highway, industrial, and marine applications.

◆ OEM Part Numbers
✓ C3965010
✓ 3965010

◆ Compatible Engine Series
✓ ISL
✓ ISLE
✓ QSL
✓ QSLe
✓ L375

◆ Product Specifications
✓ Condition: 100% Brand New
✓ Material: High-Strength Forged Steel
✓ Engine Displacement: 6 Liters
✓ Finish: Precision Ground & Induction Hardened

◆ Key Features
✓ Direct OEM Interchange for Multiple 6L Engine Models
✓ Forged Steel Construction for Superior Fatigue & Torsional Strength
✓ Optimized for High-Pressure Common Rail (HPCR) & Advanced Aftertreatment Systems
✓ Restores Factory Power, Fuel Economy & Emission Compliance

◆ Quality Assurance
✓ 100% New Production – Not a Remanufactured Core
✓ Full Dimensional & Metallurgical Compliance Verified
✓ Non-Destructive Testing (NDT) & Crack Detection Certified
✓ Dynamically Balanced for Smooth, Low-Vibration Performance

◆ Installation Applications
✓ Complete 6L Engine Overhaul & Rebuild
✓ Crankshaft Replacement in Trucks, Buses & Industrial Equipment
✓ Marine Auxiliary & Generator Engine Repairs
✓ Fleet Preventive Maintenance for Mixed 6L Engine Applications

◆ Service Advantages
✓ One Crankshaft for Broad 6L Engine Coverage – Simplifies Inventory
✓ Ensures Reliable Performance in Demanding On- & Off-Highway Applications
✓ Supports Global Operations with OEM-Level Quality & Compatibility
✓ Available with Technical Documentation & Logistics Support