Cummins 6C Engine Parts - Camshaft Section

Cummins 6C Engine Camshaft & Related Components Catalog

The Cummins 6C engine series—including the 6C8.3, 6CT8.3, and 6CTA8.3—has long been recognized for its balance of durability, torque, and efficiency in both industrial and marine applications. The camshaft assembly plays a central role in ensuring proper valve timing, optimal combustion, and smooth engine operation.

At Diesel Pro Power, we supply premium camshafts, bushings, push rods, valve lifters, and gear housing gaskets for Cummins 6C engines, as well as compatible ISL and QSL models. Whether you are carrying out a complete overhaul, replacing worn components, or upgrading for performance and reliability, our camshaft parts catalog offers everything you need in one place—with worldwide shipping and the confidence of serving over 40,000 satisfied customers.

Camshaft for Cummins 6C, ISL & QSL Engines

The camshaft in a Cummins 6C or related engine is responsible for controlling the opening and closing of the intake and exhaust valves, ensuring precise fuel-air mixture intake and exhaust gas expulsion. This part must withstand high rotational forces, temperature variations, and continuous metal-to-metal contact.

Our Cummins 6C camshafts are built to OEM specifications to guarantee long service life, consistent performance, and perfect fitment. Designed for engines with specific CPL configurations, each camshaft undergoes precision grinding, surface hardening, and balance checks to meet or exceed manufacturer tolerances.

Benefits of Choosing a Quality Cummins 6C Camshaft:

• Maintains correct valve timing for optimal combustion.
  
  

• Reduces the risk of misfires, power loss, or inefficient fuel consumption.
  
  

• Extends engine life by minimizing wear on valve train components.
  
  

• Engineered for direct replacement—no modifications required.
  
  

Camshaft Bushing Set for Cummins 6C Engines

The camshaft bushing set acts as the bearing surface between the camshaft and the engine block, reducing friction and preventing metal-on-metal contact. Over time, bushings can wear down, leading to poor lubrication, increased heat, and eventual camshaft damage.

Our Cummins 6C bushing sets are sold as complete kits for the entire engine, ensuring consistent lubrication and alignment along the entire camshaft length. These bushings are machined from high-grade materials to resist scoring, deformation, and premature wear.

Advantages of Replacing Camshaft Bushings:

• Ensures smooth camshaft rotation and valve timing stability.
  
  

• Prevents premature wear on both the camshaft and engine block.
  
  

• Improves oil flow for consistent lubrication.
  
  

• Reduces noise and vibration in the valve train assembly.
  
  

Push Rods for Cummins 6C Engines

Push rods are an integral link in the valve train, transferring the camshaft’s motion to the rocker arms and ultimately to the valves. Worn or bent push rods can cause valve timing issues, reduced power, and even catastrophic engine failure if ignored.

Our Cummins 6C push rods are manufactured from hardened steel tubing to withstand high loads and temperatures. Each push rod is designed to meet factory length specifications to maintain correct valve lift and duration.

Why Replace Push Rods:

• Restores proper valve train geometry.
  
  

• Eliminates ticking or knocking sounds caused by bent or worn rods.
  
  

• Prevents uneven wear on rocker arms and valve stems.
  
  

• Maintains full compression and performance levels.
  
  

Valve Lifters (Tappets) for Cummins 6C Engines

Valve lifters, also known as tappets, ride on the camshaft lobes and transfer rotational motion into vertical valve motion. Over time, worn lifters can cause pitting, excessive clearance, and camshaft lobe damage.

Our Cummins 6C valve lifters are precision-machined to ensure smooth rolling or sliding motion over the cam lobes. They are engineered to maintain optimal contact pressure, reducing the risk of premature camshaft wear.

Key Benefits:

• Ensures smooth and quiet valve operation.
  
  

• Maintains correct lift and duration for optimal airflow.
  
  

• Minimizes camshaft wear and extends engine life.
  
  

• Compatible with both standard and high-performance camshafts.
  
  

Gear Housing Gasket for Cummins 6C Engines

The gear housing gasket seals the interface between the timing gear housing and the engine block, preventing oil leaks and maintaining proper lubrication within the camshaft drive system. A failing gasket can lead to oil loss, contamination, and gear misalignment.

Our Cummins 6C gear housing gaskets are made from premium, heat-resistant materials that maintain their seal under high pressure and temperature cycles.

Why Replace the Gear Housing Gasket:

• Prevents oil leaks and contamination in the camshaft drive area.
  
  

• Maintains proper gear alignment and lubrication.
  
  

• Protects against wear caused by oil starvation.
  
  

• Helps preserve overall engine cleanliness and performance.
  
  

Professional Tips for Servicing the Camshaft Assembly

• Inspect all components together – When replacing a camshaft, it’s best practice to also replace bushings, lifters, and push rods to prevent uneven wear.
  
  

• Lubricate during installation – Apply a high-quality assembly lube to cam lobes, lifter faces, and bushings before installation.
  
  

• Check timing gear alignment – Incorrect gear timing can lead to poor performance or engine damage.
  
  

• Follow OEM torque specifications – Over-tightening or under-tightening fasteners can lead to warping or oil leaks.