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Cummins 6BT camshaft C3970366 – forged steel diesel engine component
Cummins 6BT camshaft C3970366 with hardened lobes for diesel engine rebuilds

OEM C3970366 Cummins 6BT Camshaft for 5.9L Diesel | Ruich Value

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The Cummins 6BT camshaft is a precision-engineered replacement for 5.9L B Series diesel engines, compatible with OEM numbers C3970366 and 3914639. Manufactured from forged alloy steel with surface hardening and precision-ground lobes, this Cummins 6BT camshaft preserves OEM valve timing and longevity required by fleet maintenance, engine rebuilders, and heavy-equipment distributors.Applications include heavy-duty trucks, construction machinery, marine generator sets, and industrial power units. Buyers searching for “Cummins 6BT camshaft for trucks and gensets”, “OEM C3970366 camshaft wholesale”, or “aftermarket camshaft for Cummins 6BT 5.9L” will find this component suited for drop-in replacement and remanufacture programs.

Specifications & Features

OEM Numbers C3970366; 3914639
Engine Model Compatibility Cummins 6BT 5.9L; 6BTA; ISB
Material Forged alloy steel
Weight Approx. 7.2 kg
Cam Lift Up to 9.5 mm
Cam Duration 178°–208°
Key Features • Precision-ground lobes for accurate valve timing;

• Surface-hardened for wear resistance and extended service life;

• OEM-grade fitment for engine rebuilds and fleet replacements

Compatible Engine Models and Applications

Engine Model Application Field Typical Equipment Brands & Models
6BT 5.9L Construction Equipment Komatsu PC200; CASE 580; JCB 3CX
6BTA Heavy-Duty Trucks Dodge RAM 2500/3500; Freightliner FL70; Ford F-650
ISB Marine & Genset Cummins Onan; Kohler Marine; Doosan Gensets

Why Choose Ruich Value for Cummins 6BT CAMshaft

  • Cummins-aligned OEM reliability — We prioritize OEM part-match for C3970366 and 3914639, delivering camshafts manufactured to Cummins-grade tolerances so buyers get true drop-in replacements without valve timing compromise.
  • Designed for heavy-duty use — Forged alloy steel and surface hardening deliver the wear resistance and lobe-profile stability fleets require for long-haul trucks, construction equipment, and continuous-run gensets.
  • B2B quality controls that reduce risk — Batch traceability, dimensional inspection, hardness testing, and documented QC lower RMA rates and satisfy distributor and remanufacturer procurement policies.
  • Fitment verification and technical support — We verify OEM numbers before shipment, provide cylinder-head and timing guidance for 6BT/6BTA/ISB platforms, and support fleet maintenance teams with installation recommendations.
  • Commercial terms for global buyers — Flexible MOQs, competitive B2B pricing, export-ready packaging, and logistics for Middle East, South America, and European distributors searching for “Cummins camshaft wholesale” and “aftermarket camshaft for Cummins 6BT”.
  • Customization and reman support — Options for custom grinds, matched lifter specs, and packaging for rebuilders and OEM programs seeking tailored camshaft solutions.

Full Cummins Engine Parts Range

Ruich Value supplies a broad range of Cummins engine components including camshafts, crankshafts, cylinder liners, injectors, and turbochargers for multiple engine families. Use our catalog table to find matching OEM numbers and cross-reference options.

Model List:

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