20R-4609 camshaft CAT engine spare part

20R-4609 camshaft CAT engine spare part Featured Image
  • 20R-4609 camshaft CAT engine spare part
  • 20R-4609 camshaft CAT engine spare part

Short Description:

20R-4609 is Cat Reman camshaft for C13 engine, it controls intake and exhaust valve timing, widely used for overhaul of large excavators, mining trucks and stationary generator sets.


Product Detail

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description

This reman camshaft follows Cat Reman rebuilding standard, including liquid penetrant inspection, straightening correction, cam profile fine grinding and hardness verification. It drives valve train components with dedicated cam lift curve to control valve timing precisely and stabilize combustion and power output of C13 engine. It is made of tough forged alloy steel, cam lobes are re-hardened by induction treatment, journals reground to OEM tolerance. It is designed for medium cyclic load operation, not interchangeable with C11 or C15 camshafts. Verify engine serial number before ordering.

Part Number: 20R-4609
Part Name: Reman Camshaft
Fit Model: CAT C13 Engine
Cam Lobe Quantity: OEM layout for C13
Heat Treatment: Induction surface hardening
Journal Repair Standard: OEM tolerance band
Working Condition: Earthmoving, mine haulage, constant-speed power generation

Maintenance & Replacement Tips

1. When replacing the camshaft, also inspect the tappets, pushrods, and valve springs to prevent premature scoring of the new cam lobes.
2. Clear all internal oil passages within the engine block before assembly; apply the specified grade of engine oil to the cam lobes and journals for pre-lubrication.
3. Strictly follow the C13 service manual to calibrate the valve timing; any deviation in timing can lead to abnormal noise, loss of power, or valve-to-piston/component contact.
4. After assembly, manually rotate the engine to ensure there is no binding or resistance; verify that oil pressure has stabilized before starting the engine for a test run.

FAQ 

Q: Can 20R-4609 be replaced by C15 camshaft?
A: No. It is designed for C13. Different cam profile, mounting reference and timing parameters, not interchangeable.

Q: Is this camshaft suitable for excavator frequent start-stop cycles?
A: Yes, fatigue-resistant cam surface, built for variable load and frequent start-stop operation of excavators.

Q: What should we inspect upon receipt?
A: Check cam lobes for chipping and pitting, journals for scratches, oil passages unblocked and flange threads intact.

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