Caterpillar CAT E325 Front Idler Assembly 102-8155 Excavator Undercarriage Track Idler Heavy Duty Replacement Parts
Model: E325ID
Min. Order: 1 Pieces
- Product Name:
- Front Idler
- Part Type:
- Front Idler Assembly
- Application Brand:
- Caterpillar CAT
- Compatible Models:
- CAT E325 / 325 / 325B / 325C / 325D
- Lead Time:
- in stock
- Supply Ability:
- 10,000 Pieces
- Shipping Port:
- Xiamen, China
Product Features & Applications
Heavy-duty Front Idler Assembly for Caterpillar CAT E325 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 40Mn2 alloy steel with precision machining, advanced heat treatment and reliable sealing technology, our CAT E325 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 Caterpillar E325 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 together with the hydraulic track tension system
- Absorbing impact loads from uneven working conditions
- Reducing abnormal track wear
For CAT E325 excavators, the undercarriage system operates under continuous heavy loads, impact and abrasive working environments.
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 E325 front idlers are manufactured with professional undercarriage production technology, providing reliable aftermarket replacement solutions for equipment dealers, contractors and repair workshops worldwide.
Key Features & Benefits
Heavy-Duty Construction Application
Designed for:
Caterpillar CAT E325 / 325 Series
Suitable for:
- Construction projects
- Quarry operations
- Earthmoving applications
- Mining support operations
- Infrastructure works
High-Strength Alloy Steel
Manufactured from:
40Mn2 Alloy Steel
Benefits:
- High impact resistance
- Strong load-bearing capability
- Excellent 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 | Caterpillar CAT E325 |
| Compatible Models | 325 / 325B / 325C / 325D |
| Machine Type | Crawler Excavator |
| Machine Class | Approx. 25-30 Ton |
| OEM Part Number | 102-8155 / 115-3696 |
| 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 | Construction / Mining / Earthmoving |
| Shipping Note | Heavy Component — Sea Freight Recommended |
Technical Specifications
- Product Name
- Front Idler
- Part Type
- Front Idler Assembly
- Application Brand
- Caterpillar CAT
- Compatible Models
- CAT E325 / 325 / 325B / 325C / 325D
- Machine Class
- Approx. 25-30 Ton Excavator
- OEM No.
- 102-8155 / 115-3696
- Replacement No.
- E325ID
- Application
- Construction / Mining / Earthmoving / Excavator
Trade Specifications
- Reference Price
- USD $750.00 - $1100.00
- Minimum Order Quantity
- 1 Pieces
- Lead Time
- in stock
- Supply Ability
- 10,000 Pieces
- Shipping Port
- Xiamen, China
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- Location
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- Main Products
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- Employees
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- Factory Area
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- Annual Revenue
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- Main Markets
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