Performance Camshaft – Cummins 6CT 8.3L | 3924471 – Professional Grade Parts

Restore 8.3L Power : Cummins 6CT Camshaft for Heavy Duty Diesel Engine Parts

As a foundational component in our wholesale Heavy Duty Diesel Engine Parts inventory, this Cummins 6CT Camshaft (Part No: 3924471) is engineered for the versatile C-Series 8.3L platform. Recognizing that the 6CT is the standard for mid-range construction equipment and municipal transit, our catalog depth ensures that fleet managers and distributors have immediate access to high-precision shafts that restore original torque curves and fuel efficiency.

This replacement shaft addresses the common wear issues found in high-hour 8.3L engines, such as lobe pitting and gear drive fatigue. Whether you are overhauling a Komatsu PC300 excavator or servicing applications such as city buses, mobile cranes, and other heavy equipment, our camshaft provides the exact valve lift profile required for reliable operation. It is a direct-fit solution that interchanges with OEM 3914640, 3934168, and 3923478.

Engineering Specifications for Cummins 6CT Camshaft

Technician’s Note: Installation & Inspection

Technician’s Note: The 6CT engine uses a gear-driven camshaft. When installing the 3924471, you must inspect the front gear train for backlash. A worn idler gear can transmit vibration to the camshaft, causing premature bearing failure. Also, verify the condition of the tappets (3931623); reuse of old tappets on a new camshaft will void the warranty and rapidly destroy the lobe surface.

Compatible Equipment for Cummins 6CT

Why Source Heavy Duty Diesel Engine Parts from Ruich Value?

• Forged Durability: Unlike smaller displacement engines, our 6CT shafts are forged steel to handle the higher cylinder pressures of the 8.3L block.
  Solves: Prevents shaft twisting and breakage under heavy hydraulic loads.
• Induction Hardening: All lobes are induction hardened to HRC 52-58, providing superior resistance to the rolling contact fatigue of the followers.
  Solves: Extends the service life of the valve train in stop-and-go transit applications.
• Precision Gear Fit: The front gear seating area is machined to strict tolerances to ensure a perfect press-fit for the timing gear.
  Solves: Eliminates timing gear wobble and noise.
• Comprehensive Inventory: We stock both the mechanical 6CT and electronic ISC camshaft variants for quick wholesale dispatch.
  Solves: Reduces fleet downtime for municipal buses and rental equipment.
• Secure Packaging: Each shaft is wrapped in VCI anti-corrosion paper and secured in a reinforced box.
  Solves: Ensures rust-free condition upon arrival, ready for immediate assembly.

Complete Cummins Camshaft Catalog

Our inventory extends far beyond the 6CT series, covering a comprehensive range of Heavy Duty Diesel Engine Parts for mid-range and heavy-duty applications. We supply camshafts for the B, C, L, and M series engines.

Category coverage: Wholesale supply for Cummins 4BT, 6BT, L10, M11, ISL, and QSC8.3 engines.

View all specs in our Cummins Camshaft Catalog.

Or explore our complete Cummins Heavy Duty Diesel Engine Parts Catalog

Request a Wholesale Quote

Note: Customized/billet development based on drawings or samples is also available for high-performance or obsolete engine applications.

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