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Cummins QSK38 Camshaft

Demo Camshaft (Cummins QSK38 Engine)

✓ Product: Camshaft
✓ Applicable Engine: Cummins QSK38 Inline V-Type Diesel Engine
✓ OEM Part Number: 3642977
✓ Widely used for mining machinery, marine engines and large generator set engine overhaul

Cummins QSK38 camshaft 3642977 is a key component of the engine valve train system. It precisely controls the opening and closing timing of intake and exhaust valves to guarantee stable air intake and exhaust process. It directly determines engine power output, fuel consumption and running smoothness. This camshaft is an essential replacement spare part for large engineering machinery, marine equipment and power generation equipment maintenance.

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Product Details

This camshaft with part number 3642977 is specially developed matching Cummins QSK38 diesel engine, widely fitted on mining trucks, marine propulsion engines and large stationary generator sets. The cam profile is strictly designed according to original drawing standards to maintain factory valve timing parameters, effectively avoiding insufficient power, excessive fuel consumption and abnormal exhaust caused by mismatched camshaft.

Manufactured by high-quality material with integrated forming technology. All cam lobes and main journals are precisely ground, followed by high-frequency induction quenching treatment. Every finished camshaft undergoes strict dimensional inspection, hardness testing and appearance flaw detection before delivery, ensuring stable quality for long-term extreme heavy-load operation.Interchangeable OEM Part No.: 3642977

Product Advantages

Premium Raw Material & Outstanding Wear Resistance

  • Adopt high-strength alloy steel blank, excellent structural rigidity, anti-fatigue and anti-deformation performance, adapting to continuous high-power, heavy-load working conditions for mining and marine industry
  • Cam lobe and shaft journal surface induction quenching, uniform hardened layer, greatly improving wear resistance, effectively preventing early pitting and abrasion of cam surface
  • Optimized cam transition arc design, reduce instantaneous impact stress between cam and tappet, lower valve train noise

OEM Standard Precision Machining

  • Strictly implement original dimension tolerance standards, accurate cam profile, consistent valve lift and timing parameters, direct installation without modification
  • Superfinishing grinding on working surfaces, easy to form stable lubricating oil film, reduce friction loss, prevent tappet scuffing
  • Strict straightness control, avoid eccentric wear after assembly, extend service life of camshaft bush and tappet assembly

Wide Compatibility & Stable Supply

  • Perfect fit for Cummins QSK38 series engine, OEM No.3642977, compatible with mining trucks, marine engines and large generator sets
  • Mature aftermarket heavy-duty engine spare part, sufficient inventory and fast delivery
  • Brand new standard camshaft in stock; bulk order negotiation supported

Technical Specifications

Part Name Applicable Engine OEM Number Material Matching Equipment
Camshaft Cummins QSK38 3642977 High Strength Alloy Steel Mining Truck, Marine Engine, Large Generator Set

Why Source From Us

Factory-Direct

Integrated machining, assembly and hot-test lines with full traceability from production to export.

Quality Tested

Cold test, hot test and load verification before shipment — reports available on request.

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Wooden crate, moisture barrier and fumigation options for sea and air freight worldwide.

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