20R-4606 Caterpillar Reman camshaft group for engine spare part

20R-4606 Caterpillar Reman camshaft group for engine spare part Featured Image
  • 20R-4606 Caterpillar Reman camshaft group for engine spare part
  • 20R-4606 Caterpillar Reman camshaft group for engine spare part

Short Description:

20R-4606 Caterpillar Reman camshaft group, complete remanufactured valve train assembly pre-fitted with timing gear and locking parts, controls valve timing for direct overhaul replacement on excavators and mining machines with C9 engine.


Product Detail

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description

This Reman camshaft group follows Caterpillar reman standards. The core is crack-tested. Cam lobes are re-profiled and induction hardened, journals are precision ground. Lobe lift, duration and timing angle comply with OEM C9 specifications. The assembly comes pre-mounted with timing gear, spacer and locking hardware, eliminating on-site gear phasing and reducing assembly error. It is widely fitted on 336D, 330D excavators and industrial power units with C9 engine. It resolves lobe wear, pitting, gear tooth damage and timing jump in one assembly, cutting downtime and saving cost versus new group.

Part Number: 20R-4606
Type: Remanufactured Camshaft Assembly
Compatible Engine: Caterpillar C9
Material: Alloy steel substrate
Processes: Flaw detection, re-hardening of cam lobes, precision grinding, and pre-calibration of assembly phasing
Assembly Includes: Camshaft, timing gear, positioning spacer, and locking fasteners
Related Components: Camshaft bushings, tappets, and pushrods

Product Advantages

1. Cat Reman pre-assembled group with factory-calibrated gear timing, ready for direct installation.
2. Re-heat-treated cam lobes resist pitting and alternating impact for continuous heavy mining work.
3. Full assembly runout inspection ensures qualified concentricity, reducing bearing uneven wear, abnormal noise and unstable oil pressure.
4. Packed as one unit, lowers risk of mismatched loose parts and simplifies stock management.
5. Compatible with original C9 valve train parts, works with OEM tappets, pushrods and bearings.

FAQ 

Q: Does 20R-4606 include camshaft bearings?
A: No. Bearings are separate items and recommended for replacement during overhaul.

Q: Can the timing gear on this group be removed and reused separately?
A: Not recommended. The gear is phased with the camshaft at factory; disassembly may cause timing error.

Q: Can it fit C9.3 engine?
A: Not interchangeable. C9.3 has different lobe profile. Verify engine serial number before installation.

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