338-0643 front camshaft CAT engine spare part

Product Advantages

• Helps in controlling the valve timing, the camshaft optimizes the engine’s power output, fuel efficiency, and exhaust emissions
• Withstands mechanical stress, without compromising performance or safety

1. OEM calibrated for front bank, matched rear cam timing for balanced combustion and low vibration
2. Thick hardened cam lobes resist timing drive impact and reduce pitting risk
3. Tight coaxiality control lowers uneven journal wear and extends bearing service life
4. Reliable spare supply for fleets in African mines and Southeast Asian offshore power sites

FAQ 

Q: Can 338-0643 replace the rear camshaft of the same bank directly?
A: No. They are front and rear camshafts with different timing phase, not interchangeable.

Q: Does this camshaft come with timing gear?
A: No, it is bare shaft only. Timing gear, key and thrust washer are ordered separately.

Q: What maintenance note for offshore saltwater environment?
A: Use Cat genuine long-life oil, shorten filter interval and keep the engine compartment dry.

Q: Is full timing reset required after replacing only the front camshaft?
A: Yes, cam and fuel timing must be rechecked to keep front and rear cam synchronized and avoid valve-piston contact.