Forged Idler Group/ZX330LC/ZX270-3/ZX350-3/for Hitachi excavator undercarriage parts/OEM quality idler manufacture in quanzhou China
Product Specifications
The Forged Idler Group is a critical undercarriage component for Hitachi ZX270-3, ZX280-3, ZX330-3, and ZX350-3 excavators, ensuring smooth track movement and durability in heavy-duty applications. Below is everything you need to know before purchasing or replacing this part.
What is a Forged Idler Group?
The idler wheel (also called the front idler) is responsible for:
✔ Guiding and tensioning the track chain
✔ Supporting the excavator’s weight
✔ Reducing wear on rollers and sprockets
✔ Absorbing shock loads during operation
A forged idler is stronger and more durable than a cast version, making it ideal for demanding conditions.
Key Features of Hitachi Forged Idler Group
✅ High-Strength Forged Steel – Superior durability vs. cast idlers.
✅ Precision Machined – Ensures smooth track movement & reduces wear.
✅ Sealed & Lubricated Bearings – Extends lifespan with minimal maintenance.
✅ Compatible with:
Hitachi ZX270-3
Hitachi ZX280-3
Hitachi ZX330-3
Hitachi ZX350-3
Signs You Need a Replacement
⚠ Track misalignment or derailment
⚠ Excessive play or wobbling in the idler
⚠ Unusual grinding/squeaking noises
⚠ Visible cracks, flat spots, or severe wear
⚠ Track tension issues despite adjustments
Delaying replacement can lead to premature track, roller, and sprocket wear.
OEM vs. Aftermarket Forged Idler Comparison
| Feature | OEM (Hitachi Genuine) | High-Quality Aftermarket |
|---|---|---|
| Material Quality | Premium forged steel | Varies (choose reputable brands) |
| Precision Fit | Guaranteed exact match | May require verification |
| Price | Higher cost | More budget-friendly |
| Warranty | Full manufacturer coverage | Depends on supplier |
| Availability | May require ordering | Often in stock |
Which to Choose?
For maximum longevity & reliability → OEM
For cost savings without sacrificing quality → Reputable aftermarket brands (DPW, CQC)
Where to Buy?
🔹 Hitachi Authorized Dealers – Best for genuine OEM parts.
🔹 Trusted Aftermarket Suppliers (DPW Machinery Parts- Undercarriage Parts Specialists).
🔹 Used/Refurbished Options – Only recommended if inspected for cracks or excessive wear.
Installation Tips
1️⃣ Verify part compatibility (check model & serial number).
2️⃣ Inspect seals & bearings before installation.
3️⃣ Replace in pairs (if both idlers are worn).
4️⃣ Ensure proper track tension & alignment to avoid uneven wear.
Need Help Finding the Right Idler Group?
Let me know your exact Hitachi excavator model & serial number, and I can help you locate the best forged idler group for your machine!
Keep your excavator running smoothly with a high-quality forged idler!https://www.hangongmachinery.com/uploadfile/202507/29c698759ccac5f.webp
