396-8795 Caterpillar main engine camshaft for engine spare part

396-8795 Caterpillar main engine camshaft for engine spare part Featured Image
  • 396-8795 Caterpillar main engine camshaft for engine spare part
  • 396-8795 Caterpillar main engine camshaft for engine spare part

Short Description:

396-8795 Caterpillar main engine camshaft, the primary camshaft for C7.1 electronic fuel injection engine, governing intake and exhaust valve timing for all six cylinders, widely used on 320D2 excavator power modules.


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description

The 396-8795 is the single main camshaft for inline six-cylinder C7.1 engine. It integrates valve actuation and timing signal pickup, with cam profile calibrated to match both valve lift and electronic injection timing. This engine is commonly fitted on Cat 320D2, 323, 326 excavators, asphalt pavers and wheel loaders facing frequent start-stop and variable load. Continuous oil film lubrication is required for journals. Lobe spalling or journal scuffing causes rough idle, power loss and timing fault codes, and may trigger valve-piston contact in severe cases.

Part No.：396-8795
Name：Main Engine Camshaft
Fit Models：CAT C7.1
Equipment：320D2 excavator, paver, wheel loader
Material：Alloy cast steel with induction hardened cam lobes
Matching Components：Roller lifters, cam bearings, timing gear, camshaft sensor

Maintenance & Replacement Tips

1. Inspect all roller lifters and cam bearings during replacement. Replace components with excessive wear together
2. Clean cylinder head galleries and camshaft oil holes thoroughly. C7.1 is sensitive to oil contamination, debris scratches lobes rapidly
3. Align timing marks and verify trigger wheel position for cam sensor. Misalignment leads to timing faults and no-start
4. Pre-lube before cranking. Scan for fault codes after startup and monitor oil pressure for the first 80 hours

FAQ 

1. Can 396-8795 interchange with C7 camshaft?
No. C7 and C7.1 differ in valve timing and sensor trigger design with different lift profiles.

2. Can a bent trigger wheel be straightened for reuse?
Straightening is not recommended. Angular offset will trigger persistent timing faults. Replace the whole camshaft.

3. What risk if only the camshaft is replaced while keeping old lifters?
Mismatched contact surfaces tend to produce pitting and spalling during break-in and cause premature failure.

4. Does it fit all C7.1 engines regardless of serial number?
It fits base C7.1 platform. Verify engine serial number and electronic control version before ordering.

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