4P-3785 camshaft CAT G3408 engine spare part

Short Description:

Part No.4P-3785, CAT camshaft, fits classic 3306 diesel engine, drives valve train and controls valve timing, replacement part for old construction equipment overhaul.

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Advantages

1. Cam lift profile follows OEM specification, matched air flow for stable power
2. Uniform hardened layer, cam lobes resist fast wear under long high temperature
3. Precise journal dimension, reasonable clearance with cam bearings and good lubrication
4. Well dynamic balanced, low vibration under low-speed heavy load and less noise risk

FAQ

Q1：Can 4P-3785 camshaft fit 3304 engine?
A：No. 3304 and 3306 camshaft differ in length and cam profile, not interchangeable.
Q2：Can old cam bearings be reused if no obvious scratches?
A：Replace if clearance is out of spec, even without scratches, to protect new camshaft.
Q3：What causes hard start and unstable idle after camshaft replacement?
A：Mostly wrong timing or incorrect valve clearance, recalibrate timing and clearance.
Q4：Can the camshaft be installed with light scratches on cam lobes?
A：Light scratches can be monitored temporarily. Replace immediately if peeling or grooves appear.