466-3274 crankshaft vibration damper CAT 740 dump truck spare part

466-3274 crankshaft vibration damper CAT 740 dump truck spare part Featured Image
  • 466-3274 crankshaft vibration damper CAT 740 dump truck spare part
  • 466-3274 crankshaft vibration damper CAT 740 dump truck spare part
  • 466-3274 crankshaft vibration damper CAT 740 dump truck spare part

Short Description:

Part No.352-4522, CAT new rubber crankshaft torsional damper, 304 mm outer diameter, suppress crankshaft torsional vibration and protect crankshaft, timing gear and belt drive system. It fits C9 heavy-duty engine for large excavators, wheel loaders and mining trucks.


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description

This 466-3274 is brand-new sealed silicone viscous damper for CAT 3516 engine, 409 mm outer diameter. It adopts closed housing, inertia ring and silicone fluid, free from rubber aging. Each unit passes seal pressure test, crack inspection and dynamic balance. Its damping curve matches vibration characteristics of 3516 large V-engine. Mounted on crankshaft front end, it suppresses cyclic torsional load and protects crankshaft, bearings and gears. Widely applied on 793,797 mining trucks, offshore power units and large generator sets. It is a critical rotating component for 3516 overhaul.

Part No.：466-3274
Name：CAT Crankshaft Vibration Damper, 409 mm OD
Type：Viscous silicone torsional damper
Outer diameter：409 mm
Fit engine：3516
Process：Brand new OEM, seal pressure test, MPI inspection, dynamic balance calibration
Mounting position：Front end of crankshaft

Advantages

1. Standard 409 mm outer diameter, bolt pattern and guard dimension fit 3516 perfectly
2. Silicone damping design, high temperature resistance, no rubber aging risk for long continuous operation
3. Sealed housing with stable fluid, wide damping bandwidth for balanced vibration control at all speeds
4. Individual dynamic balance before delivery, reduce extra vibration damage to front gear and fan drive

FAQ 

Q1：Can 466-3274 and 0R-7847 dampers be interchanged?
A：No. Both are silicone type, but outer diameter, inertia mass and bolt pattern differ for different engines.

Q2：Is this a Reman damper?
A：No. It is brand new OEM silicone damper with new housing and sealed damping fluid.

Q3：What symptoms will appear when this silicone damper fails?
A：Persistent low-frequency engine shake, front gear noise, crankshaft fatigue crack and premature main bearing wear.

Q4：Should I replace it if housing looks intact during overhaul?
A：Replacement is recommended. Silicone fluid degrades over time; internal damping loss cannot be checked visually.

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