Daewoo Doosan DH300 Front Idler Assembly Excavator Undercarriage Track Idler Heavy Duty Replacement Parts
Model: DH300ID
Min. Order: 1 Pieces
- Product Name:
- Front Idler
- Part Type:
- Front Idler Assembly
- Application Brand:
- Daewoo / Doosan
- Compatible Models:
- DH300 / DH300LC
- Lead Time:
- in stock
- Supply Ability:
- 10,000 Pieces
- Shipping Port:
- Xiamen, China
Product Features & Applications
Heavy-duty Front Idler Assembly for Daewoo / Doosan DH300 crawler excavators. The front idler is a critical undercarriage component installed at the front of crawler excavators. It guides the track chain, maintains proper track alignment and works together with the track tension adjustment system to ensure smooth travel performance and stable machine operation. Manufactured from high-strength alloy steel with precision machining, professional heat treatment and reliable sealing technology, our DH300 front idler provides excellent impact resistance, wear performance and long service life under demanding construction and earthmoving conditions. Designed as an OEM-style aftermarket replacement for Daewoo / Doosan DH300 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 travel
- Maintaining correct track alignment
- Working with the hydraulic track tension system
- Reducing track vibration and abnormal movement
- Improving undercarriage service life
For a 30-ton class excavator such as Daewoo / Doosan DH300, the undercarriage system operates under continuous impact loads and abrasive working conditions.
A worn or damaged front idler may cause:
- Track chain deviation
- Uneven track wear
- Abnormal vibration
- Increased travel resistance
- Accelerated wear of track rollers and track chains
Our DH300 front idlers are manufactured with professional undercarriage production technology and provide reliable replacement solutions for equipment dealers, contractors and repair workshops.
Key Features & Benefits
Heavy-Duty Construction Application
Designed for:
Daewoo / Doosan DH300
Suitable for:
- Construction projects
- Quarry operations
- Earthmoving applications
- Mining support operations
- Infrastructure works
High-Strength Alloy Steel
Manufactured from:
40Mn / 50Mn 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: 8mm-12mm
Provides improved resistance against continuous track chain contact 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 | Daewoo / Doosan DH300 |
| Compatible Models | DH300 / DH300LC |
| Machine Type | Crawler Excavator |
| Machine Class | Approx. 30 Ton |
| OEM Part Number | 2270-1084 (Reference) |
| Material Grade | 40Mn / 50Mn Alloy Steel |
| Manufacturing Process | Casting + CNC Machining |
| Heat Treatment | Induction Hardening |
| Surface Hardness | HRC 52-58 |
| Hardening Depth | 8mm-12mm |
| 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 | Construction / Mining / Earthmoving |
| Shipping Note | Heavy Component — Sea Freight Recommended |
Technical Specifications
- Product Name
- Front Idler
- Part Type
- Front Idler Assembly
- Application Brand
- Daewoo / Doosan
- Compatible Models
- DH300 / DH300LC
- Machine Class
- Approx. 30 Ton Excavator
- OEM No.
- 2270-1084 (Reference) / NO2270-1084 (to be confirmed)
- Replacement No.
- DH300ID
- Application
- Construction / Mining / Earthmoving / Excavator
Trade Specifications
- Reference Price
- USD $650.00 - $950.00
- Minimum Order Quantity
- 1 Pieces
- Lead Time
- in stock
- Supply Ability
- 10,000 Pieces
- Shipping Port
- Xiamen, China
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- Employees
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