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Komatsu PC300 Excavator Front Idler Assembly 207-30-00692 Undercarriage Track Idler Heavy Duty Replacement Parts

Model: PC300ID

USD $850.00 - $1250.00 / Pieces

Min. Order: 1 Pieces

Product Name:
Front Idler
Part Type:
Front Idler Assembly
Application Brand:
Komatsu
Compatible Models:
Komatsu PC300 / PC300LC
Supported Trade Terms:
FOBEXW
Lead Time:
in stock
Supply Ability:
10,000 Pieces
Shipping Port:
Xiamen, China
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Product Features & Applications

Heavy-duty Front Idler Assembly for Komatsu PC300 crawler excavators. The front idler is a key undercarriage component installed at the front of the crawler frame. It guides the track chain, maintains correct track alignment and works together with the track tension adjustment system to ensure smooth machine travel and stable operation. Manufactured from high-strength 40Mn2 alloy steel with precision machining, advanced heat treatment and reliable sealing technology, our PC300 front idler provides excellent impact resistance, wear performance and long service life under demanding construction, quarry and mining conditions. Designed as an OEM-style aftermarket replacement for Komatsu PC300 / PC300LC excavator undercarriage systems. Please provide your machine model, serial number or existing OEM part number before ordering to confirm exact compatibility.

Product Overview

The Front Idler Assembly, also known as Track Idler or Guide Wheel, is installed at the front section of crawler excavator undercarriage.

Its main functions include:

  • Guiding the track chain during machine operation
  • Maintaining proper track alignment
  • Working with the hydraulic track tension system
  • Absorbing impact loads from uneven ground conditions
  • Improving overall undercarriage durability

For a 30-ton class excavator such as Komatsu PC300, the undercarriage system operates under heavy loading, continuous impact and abrasive working conditions.

A worn or damaged front idler may cause:

  • Track chain deviation
  • Uneven track wear
  • Abnormal vibration
  • Increased travel resistance
  • Premature wear of track rollers and track chains

Our PC300 front idlers are manufactured with professional undercarriage production technology, providing reliable aftermarket replacement solutions for equipment dealers, mining contractors and repair workshops.


Key Features & Benefits

Heavy-Duty Construction & Mining Application

Designed for:

Komatsu PC300 / PC300LC

Suitable for:

  • Construction projects
  • Quarry operations
  • Mining applications
  • Heavy earthmoving
  • Infrastructure projects

High-Strength Alloy Steel

Manufactured from:

40Mn2 Alloy Steel

Benefits:

  • High impact resistance
  • Excellent load-bearing capability
  • Strong fatigue resistance
  • Superior wear performance
  • Extended service life

Precision Heat Treatment

The idler tread surface is processed through controlled induction hardening.

Typical specification:

  • Surface hardness: HRC 52-58
  • Hardening depth: 10mm-15mm

Provides excellent resistance against continuous track chain impact and abrasive environments.


Reliable Sealing System

Equipped with:

  • Heavy-duty floating oil seals
  • Wear-resistant bushings
  • Lifetime internal lubrication

The sealing system helps prevent lubricant leakage and protects internal components from:

  • Mud
  • Dust
  • Water contamination

OEM-Style Direct Replacement

Manufactured according to OEM-style dimensions:

  • Idler diameter
  • Shaft dimensions
  • Mounting dimensions
  • Track contact profile

Designed for direct replacement after confirming specifications.


Technical Specifications

Item Specification / Detail
Product Type Excavator Front Idler Assembly
Machine Model Komatsu PC300
Compatible Models PC300 / PC300LC
Machine Type Crawler Excavator
Machine Class Approx. 30 Ton
OEM Part Number 207-30-00692 / 207-30-00161
Material Grade 40Mn2 Alloy Steel
Manufacturing Process Casting + CNC Machining
Heat Treatment Induction Hardening
Surface Hardness HRC 52-58
Hardening Depth 10mm-15mm
Seal System Heavy-duty Floating Oil Seal
Lubrication System Lifetime Internal Lubrication
Structure Heavy-duty Idler Assembly
Quality Inspection Dimension, Hardness and Sealing Inspection
Mounting Configuration OEM Standard
Installation Bolt-on Direct Replacement
Application Mining / Construction / Earthmoving
Shipping Note Heavy Component — Sea Freight Recommended
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