20R-4756 camshaft CAT engine spare part

20R-4756 camshaft CAT engine spare part Featured Image
  • 20R-4756 camshaft CAT engine spare part
  • 20R-4756 camshaft CAT engine spare part

Short Description:

20R-4756 is Cat Reman camshaft for C15 ACERT engine, it controls exhaust valve timing, widely used for overhaul of large mining dump trucks, heavy engineering equipment and industrial generator sets, verify engine serial number before ordering.


Product Detail

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description

This reman camshaft is rebuilt following Cat Reman standards, including magnetic particle inspection, straightening, cam surface fine grinding and spot hardness test. It adopts dedicated exhaust cam lift curve to control exhaust valve timing accurately, improve exhaust evacuation and reduce exhaust back pressure. It is built from tough forged alloy steel, cam lobes are re-hardened by induction treatment, journals reground to OEM tolerance. It is designed for exhaust side only, different cam profile from intake camshaft, cannot be swapped individually. Confirm engine serial number before purchase.

Part Number: 20R-4756
Part Name: Reman Camshaft
Fit Model: CAT C15 ACERT Engine
Function: Exhaust side dedicated camshaft
Hardening Process: Induction surface hardening with controlled hardness gradient
Concentricity Standard: OEM geometric tolerance
Working Condition: Open-pit mine haulage, continuous constant-speed power generation, long-distance highway transport

Product Advantages

1. Rebuilt per Cat Reman specification, exhaust timing matches OEM drawing for smooth exhaust flow and less power loss
2. Reasonable hardness gradient on cam lobes, resistant to high-temperature exhaust impact, pitting and fatigue under full load
3. Corrected and polished journals for stable rotation, reduce uneven bearing wear and oil blow-by risk
4. Short lead time for reman unit, cost-effective versus new part, suitable for bulk maintenance in Africa and Southeast Asia mines

FAQ 

Q: Can 20R-4756 replace the intake camshaft of the same engine?
A: No. It is exhaust-side dedicated, different cam lift and timing curve, not interchangeable with intake camshaft.

Q: Is this camshaft suitable for long-haul trucks under full load?
A: Yes, it is heat and fatigue resistant, and can sustain full-load operation with proper maintenance.

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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