316-1665 left rear camshaft CAT engine spare part

Product Advantages

• Capable of withstanding high-temperature and high-stress conditions.
• Precisely controls exhaust valve timing, enabling efficient engine operation.
• Manages emissions by optimizing combustion efficiency.

1. OEM calibrated for left rear bank, matched front cam timing for balanced combustion and low vibration
2. Deep hardened cam lobes resist sustained high-temperature load and reduce pitting failure
3. Tight coaxiality control lowers uneven journal wear and extends bearing service life
4. Reliable spare supply for long-cycle maintenance for African open mines and Southeast Asian offshore power stations

FAQ 

Q: Can 316-1665 replace 316-1664 directly?
A: No. They are front and rear camshafts of the same bank 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 salt spray environment?
A: Use Cat genuine long-life oil, shorten filter interval and seal engine compartment against corrosion.

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