463-1704 Crankshaft AS CAT spare part

463-1704 Crankshaft AS CAT spare part Featured Image
  • 463-1704 Crankshaft AS CAT spare part
  • 463-1704 Crankshaft AS CAT spare part
  • 463-1704 Crankshaft AS CAT spare part

Short Description:

466-4921 CAT engine crankshaft assembly fits CAT C4.4 electronic diesel engine for 318F, 320F, 323GX excavators. Forged alloy steel with crankshaft position sensor signal pickup structure, converts piston reciprocating force into rotary power for medium excavator overhaul.


Product Detail

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description

This crankshaft is the core transmission component for C9.3B series electronic engines, integrally forged from alloy steel with pre-installed counterweights. It is quenched and tempered, precision ground on journals, oil passages polished and surface hardened, with dynamic balance inspection completed before delivery. It withstands continuous alternating impact load in earthmoving and quarry works, widely used for new generation large CAT excavators, mobile crushers, industrial pump sets and stationary generator sets under long continuous heavy duty.

Part number: 463-1704
Alternative name: Crankshaft AS
Fit engine: CAT C9.3, C9.3B
Fit machine: 345GC, 349GC, 352 excavator, mobile crusher, industrial water pump, generator set
Material: Forged alloy steel
Structure: Pre-installed integrated counterweights
Process: Forging, quenching & tempering, journal precision grinding, oil passage polishing, dynamic balance calibration
Matching system: Electronic common rail engine

Advantages

1. Integrally forged alloy steel blank delivers strong torsion and fatigue resistance, suitable for heavy impact conditions in quarry and earthmoving applications.
2. Main journals and connecting rod journals are precision machined with stable wear-resistant layer, slowing bearing wear and extending overhaul interval.
3. Pre-assembled counterweights with factory dynamic balance calibration suppress engine vibration and reduce wear of surrounding components.
4. Built-through lubrication oil passages with optimized layout guarantee stable oil supply under variable load and high-speed operation.
5. OE standard dimension for direct replacement without extra machining, fully compatible with electronic engine calibration.
6. Optimized fillet treatment on stress concentration zones reduces cracking risk.

FAQ 

Q1: Can 463-1704 interchange with crankshaft for C9 engine?
A1: Not interchangeable. C9 and C9.3B differ in crank throw, journal diameter and flange structure.
Q2: Can lightly scratched crank journals be reground for reuse?
A2: Check against factory wear tolerance. Replace it if dimension exceeds limit.
Q3: Which spare parts should be renewed together with crankshaft?
A3: Main bearings, connecting rod bearings, thrust washers, front and rear oil seals and main bearing bolts are recommended.
Q4: How to store crankshaft for long term?
A4: Coat journals with anti-rust grease and support on multi-point fixture to avoid bending deformation.

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