Cummins 6C Series Engine Rebuild Kit – 6CS105-001

This Cummins 6C Series engine kit contains the principal components required for an in-frame repair or engine overhaul on compatible Cummins 6C diesel engines. The package combines upper and lower gasket sets, six cylinder kits, connecting-rod bearings, main bearings, and engine assembly lubricant in one convenient rebuild solution.

The included standard-size rod bearing kit is intended for engines with a crankshaft that remains within the applicable standard journal specifications. The crankshaft, cylinder block, connecting rods, and related components should be measured and inspected before installation to confirm the correct bearing and cylinder-kit configuration.

Engine Application

• Engine manufacturer: Cummins
• Engine series: 6C Series
• Product type: Engine rebuild kit
• Number of cylinders: 6
• Rod-bearing size: Standard

Fitment notice: Cummins 6C Series engines were produced in multiple configurations. Verify the engine serial number, CPL, piston design, cylinder bore, bearing sizes, and original component numbers before ordering.

Engine Kit Contents

Benefits of a Complete Cummins 6C Engine Kit

• Combines major overhaul components in one package
• Includes six cylinder kits for the complete six-cylinder engine
• Provides upper and lower gasket sets for engine reassembly
• Includes standard-size connecting-rod bearings
• Includes a main bearing kit
• Supplies assembly lubricant for initial component installation
• Helps reduce the time required to source individual rebuild parts

What to Verify Before Ordering

Have the following information available to confirm the correct Cummins 6C rebuild kit:

• Engine serial number
• Cummins Control Parts List (CPL) number
• Complete engine model
• Piston bowl and combustion configuration
• Cylinder bore condition and dimensions
• Crankshaft main-journal size
• Crankshaft connecting-rod journal size
• Original component or kit numbers

Do not select an engine kit using only the “6C” designation. Confirming the CPL and engine serial number helps identify production differences that may affect pistons, rings, gaskets, bearings, and other internal components.

Installation Recommendations

This Cummins 6C engine kit should be installed by a qualified diesel-engine technician. Before assembly, inspect and measure the cylinder block, crankshaft, connecting rods, cylinder-head surface, camshaft, oil pump, cooling system, and related components.

Follow the current Cummins service procedures for clearances, surface preparation, component orientation, lubrication, tightening sequences, torque values, and initial engine startup. Correct the underlying cause of the original engine failure before returning the rebuilt engine to service.

Frequently Asked Questions

What engine does kit 6CS105-001 fit?

Kit 6CS105-001 is designed for compatible Cummins 6C Series diesel engines. Exact fitment must be verified using the engine serial number and CPL.

How many cylinder kits are included?

The package includes six cylinder kits, providing one cylinder kit for each cylinder of the Cummins 6C engine.

Are the connecting-rod bearings standard size?

Yes. The included 171816F connecting-rod bearing kit is listed as standard size. Measure the crankshaft journals before installation to confirm that standard bearings are correct.

What size are the main bearings?

The supplied information identifies part number 171821 as the main bearing kit but does not state its size. Confirm the bearing size before ordering and installation.

Does this kit include a camshaft, oil pump, or cylinder head components?

Those components are not identified in the supplied kit contents and should not be assumed to be included. The package contains only the components specifically listed above.

Order With Engine Fitment Support

Need help confirming the correct rebuild kit for your Cummins 6C engine? Call Heavy Duty Kits at 888-642-6460 or email parts@heavydutykits.com. Provide the engine serial number and CPL for faster verification.