7C-0674 left camshaft for engine spare part

7C-0674 left camshaft for engine spare part Featured Image
  • 7C-0674 left camshaft for engine spare part
  • 7C-0674 left camshaft for engine spare part

Short Description:

CAT 7C-0674 left camshaft is dedicated to the left bank of 3508 V8 engines. It controls valve timing for the left cylinders and works with matching right camshaft 7C-0673 for overhaul of large generator and mining power units.


Product Detail

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description

Forged from alloy steel with deep induction-hardened lobes, this camshaft balances torsional strength and wear resistance. The 3508 V8 uses two separate camshafts for each bank. The left and right camshafts have unique phase and lift profiles and cannot be swapped. 7C-0674 governs gas exchange for the left cylinders following the factory firing sequence, which keeps steady idle and consistent combustion across all cylinders. It fits stationary generator skids, mining prime movers and marine auxiliary engines, suited for remote sites with continuous full-load operation and variable fuel quality.

Part No.: 7C-0674
Name: Left Camshaft
Matching Part No.: 7C-0673 (Right Camshaft)
Application: CAT 3508 / 3508B V8 engine, generator set, mining power unit, marine auxiliary engine
Material: Carbon Steel
Structure: Dedicated camshaft for left bank of V-engine, timing gear not included

Product Advantages

  1. Cam phase follows the left-bank firing sequence to balance exhaust temperature and reduce vibration and knock.
  2. Precision coaxiality check maintains stable oil film at low heavy-load RPM and prevents uneven bearing wear.
  3. Adequate hardened depth resists cyclic impact loads of large-displacement engines and slows pitting and spalling.
  4. Distinct timing marks help technicians tell left and right camshafts apart and avoid wrong installation.

FAQ 

Q: Can 7C-0674 interchange with 7C-0673?
A: No. Their cam phase and lift profiles are calibrated separately for left and right banks. Swapping breaks firing order and causes rough running.

Q: How many 7C-0674 camshafts are needed for one 3508 engine?
A: One 7C-0674 is used for the left bank, and it must be paired with one 7C-0673 right camshaft.

Q: Do I need to replace right-side valve train parts together?
A: Right-side components can stay if wear and clearance are within limits. Only worn parts on the left bank require replacement.

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