356-3503 Caterpillar main engine camshaft for engine spare part

356-3503 Caterpillar main engine camshaft for engine spare part Featured Image
  • 356-3503 Caterpillar main engine camshaft for engine spare part
  • 356-3503 Caterpillar main engine camshaft for engine spare part
  • 356-3503 Caterpillar main engine camshaft for engine spare part

Short Description:

356-3503 Caterpillar main engine camshaft, fits 3054 and 3054B engines, controls intake and exhaust valve timing for overhaul of excavators, backhoe loaders and compactors.


Product Detail

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description

This camshaft is the core valve-train component for 3054 series 4-cylinder engines. Its lobe profile and journal dimensions follow OEM specifications. Forged alloy steel with induction hardening and precision grinding on lobes and journals maintains stable valve timing. It fits 312B, 315B excavators, 416C, 428C backhoe loaders and CP/CS compactors. It repairs lobe pitting, journal scoring and timing disorder, improving rough idle, weak power and high fuel consumption for municipal, earthmoving and road maintenance applications.

Part Number: 356-3503
Type: Main Engine Camshaft
Compatible Engines: Cat 3054, 3054B
Interchangeable Part Number: 139-4669
Compatible Equipment: 312B, 315B, 416C, 428C, 436C, CP-433E, CS-431C
Material: Alloy Steel
Manufacturing Process: Forging, Induction Hardening, Precision Cylindrical Grinding
Associated Components: Camshaft Bushings, Timing Gears, Tappets, Pushrods
Weight (kg): 4.42

Product Advantages

• Supports high-speed operation without valve float.
• Balanced to minimize torsional vibration during rotation.
• Controls valve overlap to influence exhaust scavenging.

1. OEM lobe profile, lift and duration match 3054 calibration without changing engine power characteristics.
2. Hardened lobes and journals resist pitting and wear for continuous operation of small and medium construction machines.
3. Full runout inspection with strict concentricity tolerance, reducing bearing uneven wear and abnormal noise.
4. Standard locating structure, fully compatible with original timing gears, tappets and pushrods for easy fitting.
5. Widely stocked, convenient for bulk maintenance purchasing for small repair shops.

FAQ 

Q: Can 356-3503 interchange with 139-4669?
A: Yes, they are interchangeable for 3054 engine. Verify engine serial number before installation.

Q: Does it fit C4.4 engine?
A: No. C4.4 has different lobe profile and mounting dimensions, not interchangeable.

Q: Can camshaft with light scratches be reused?
A: Replace if pitting, spalling or deep scoring exists, it will damage tappets rapidly.

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