398-0968 camshaft assembly CAT engine spare part

398-0968 camshaft assembly CAT engine spare part Featured Image
  • 398-0968 camshaft assembly CAT engine spare part

Short Description:

Part No.398-0968, caterpillar camshaft assembly for C9.3 electronic engine, controls valve and fuel injection timing, overhaul spare part for 336, 340 large excavators.


Product Detail

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description

This 398-0968 camshaft assembly is integrally forged from high-purity alloy steel. Cam profiles are precision ground to OEM lift curve for C9.3 electronic engine with deep carburizing quenching. It is pre-assembled with timing gear and spacer sleeves for direct fitting. It synchronizes air exchange and fuel injection accurately, fixing timing drift, power loss, rough idle and valve noise. It works reliably under hot, dusty continuous operation as a complete overhaul assembly for C9.3 engines.

Part No.：398-0968
Name：Camshaft Assembly
Material：High-purity alloy forged steel
Process：Integral forging + carburizing quenching + multi-station precision grinding
Package includes：Camshaft body, timing gear, spacer sleeves
Application：Cat C9.3 electronic engine, 336GC, 340GC excavator

Product Advantages

1. Supplied as complete assembly with pre-fitted gear and spacers, no separate part sourcing needed
2. Exclusive timing curve for C9.3 electronic engine, no fuel calibration after installation
3. Dense uniform hardened layer, resists pitting and peeling under sustained high temperature
4. Timing reference fixed on gear at factory, easy alignment and lower assembly error risk
5. Runout, hardness and gear backlash inspected one by one, suitable for bulk maintenance stock

FAQ 

Q：Does 398-0968 fit old mechanical pump C9 engine?
A：Not interchangeable. It only fits electronic C9.3. Check engine serial number before ordering.

Q：Can the built-in timing gear be detached and replaced separately?
A：It is pre-positioned at factory. Disassembly is not recommended, as it breaks original timing datum.

Q：Can the camshaft be installed with tiny pits on cam lobes?
A：Pits will expand rapidly and damage tappets. Replacement is required to prevent secondary engine failure.

Q：How to store this camshaft assembly for long term?
A：Hang vertically, apply anti-rust grease on gear teeth, cover with dust film and avoid impact or heavy load.

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