Cummins Brand New Engine Parts CAM Follower Shaft 3082416

Core Applications

QSK60/QSK78 Engines : Critical for Caterpillar 798 AC mining trucks (400-ton payloads)

High-Pressure Fuel Systems : Bosch CAPS pump synchronization in Tier 4 Final engines

Valve Train Load Management : Withstands 2,100 RPM continuous operation

Key Differentiators

Feature  3082416 OEM Aftermarket Equivalent 

Surface Hardness 900 HV (nitrided layer)  600 HV (case-hardened only) 

Fatigue Life 10⁷ cycles @12kN (ISO 12107)  10⁶ cycle failure 

Temperature Range  -40°C to +280°C -20°C to +200°C 

Metallurgical Engineering

Base Material : Vacuum-degassed SAE 4140 steel with micro-alloyed boron

Heat Treatment :

Austempering process (ASTM A304)

Achieves 45-50 HRC core hardness

Surface Treatments :

Plasma nitriding (0.5mm depth, ISO 2639)

Electroless nickel-PTFE composite coating

Laboratory Testing

Test Standard Result  Requirement 

 ASTM E384 Microhardness  900 HV 0.3kgf  600 HV minimum 

 DIN 50100 Fatigue 10⁷ cycles @12kN dynamic load  10⁶ cycle failure 

 ISO 1143 Corrosion  1,500hrs salt spray (Grade 9)  Grade 6 typical 

Field Performance Data

 Chilean copper mine trucks: 28,000hrs service life vs. 9,000hrs aftermarket

Offshore supply vessels: Zero failures in 5-year North Sea operations

Precision Assembly

1. Surface Preparation :

Clean with Cummins 4922474 solvent (VOC-free formula)

Verify 0.2μm Ra finish with JH43880 profilometer

2. Thermal Fitting :

Heat shaft to 120°C (248°F) for interference fit assembly

3. Torque Sequence :

25 N·m initial torque + 90° angular tightening (SAE J1949)

Predictive Maintenance

Interval  Procedure  Tool 

500 Hours  Stroboscopic wear pattern analysis  JH43885 phased array detector

2,000 Hours  Ferrographic oil analysis  Cummins 4922480 test kit 

 5,000 Hours  Residual stress mapping  X-ray diffraction system