Undercarriage Component Idler Wheel fit CAT E320
The E320 idler wheel is a key component of your excavator’s undercarriage. It guides the track chain smoothly, maintains proper track tension, and provides stability and control on all terrains. Built from high-strength materials and manufactured with precision, this idler guarantees a longer service life and reduced maintenance, keeping your E320 operating at peak performance.
| Material | 50Mn/40MnB |
|---|---|
| Surface Hardness | HRC53-58,deepth: 8-12mm |
| Colors | Black or yellow or customized |
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Kinton Parts is trusted by professionals worldwide for delivering high-quality parts for excavators, bulldozers, and other construction machinery—with guaranteed performance and durability.
The E320 idler plays a crucial role in guiding the track and keeping it properly aligned. Positioned at the forward side of the undercarriage, it supports the track as it rotates, absorbing shock and reducing wear. It also assists in maintaining proper track tension, preventing derailments and improving stability and maneuverability — whether you’re excavating, loading, or maneuvering in challenging conditions.
Material and Manufacturing Excellence
Our E320 idler is manufactured from high-strength alloy steel, carefully selected for its toughness and resistance to bending and shock loading.
The manufacturing process comprises:
- Precision Casting: Providing a strong base for subsequent processing.
- CNC Machining: Ensuring dimensions and profiles match original specification precisely.
- Induction Heat Treatment: Hardening the surface to HRC 52-58 for enhanced wear resistance and service life.
- Anti-Corrosion Coating: Providing a protective layer against rust, clay, sand, and other abrasive elements.
Summary of Our Manufacturing Process
The following are some real photos of our factory, which reflect the strength and authenticity of our factory.
This photo shows the idler after it has been carefully polished. The smooth surface reduces resistance against the track and minimizes wear.
This photo displays the finished idler safely packaged and ready for delivery, ensuring it reaches you in perfect condition.
Compatible Models and Serial Numbers
The E320 idler is designed to match:
- Caterpillar E320 Excavator
- E320L, E320B, E320C and variants with analogous undercarriage dimensions
Some typical OEM reference numbers (please check against your own) include:
- 4I-2355
- 8E-9031
- 8E-0409
If you’re unsure about compatibility, please provide us with your excavator’s model and Serial Number, and we will quickly match you with the perfect components.
OEM Undercarriage Parts for Caterpillar Excavator
| BRAND | MACHINERY MODEL NUMBER | |||||||
|---|---|---|---|---|---|---|---|---|
| CATERPILLAR-CAT | CAT55 | CAT225 | CAT245 | CAT311 | CAT312 | CAT312B | CAT315 | CAT320 |
| CAT320B | CAT320C | CAT320D | CAT320L | CAT322 | CAT324 | CAT325 | CAT325B | |
| CAT325BL | CAT330 | CAT330B | CAT330BL | CAT330C | CAT330D | CAT345 | CAT345B | |
| CAT973 | E55 | E70 | E70B | E120 | E120-1 | E120B | E140 | |
| E200B | E200-5 | E215 | E240 | E300B | E300L | E311 | E312 | |
| E312B | E320 | E320BL | E320C | E320D | E320DL | E320L | E320S | |
| E322B | E322C | E324 | E324D | E324DL | E325 | E325B | E325L | |
| E329DL | E330 | E330B | E330C | E330D | E330DL | E345 | E345B | |
| E450 | CAT301.5 | CAT302.5 | CAT303.5 | CAT305 | CAT307 | CAT308 | CAT313 | |
| CAT316 | CAT318 | CAT320E | CAT320GC | CAT323 | CAT326 | CAT329 | CAT336 | |
| CAT340 | CAT349 | CAT350 | CAT365 | CAT374 | CAT375 | CAT385 | CAT385CL | |
| CAT390 | CAT390D | CAT390DL | CAT390FL | CAT395 | CAT6015 | CAT6015B | CAT6015D | |
| CAT6020 | CAT6020B | CAT6030 | CAT6030B | CAT6030D | CAT6040 | CAT6040B | ||
Looking for a specific make or model not listed here? Reach out and we’ll be happy to assist.
Application in Extreme Working Conditions
The E320 idler performs exceptionally well under tough conditions — whether you’re navigating clay-rich soil, gravel, sand, or hard clay formations. The hardened surface resists abrasion, while the robust structure efficiently guides the track under heavy pressure. Whether you’re excavating a deep trench, loading material into trucks, or maneuvering across a muddy job site, this idler guarantees stability, reduces wear on adjacent components, and prolongs service intervals.
Why Choose Our E320 Idler Wheel?
Choosing our E320 idler means choosing durability, stability, and cost-efficiency:
Higher service life: Induction hardening and protective coating make it more wear-resistant.
Precision dimensions: CNC processing guarantees proper fit and smooth track movement.
Rugged materials: High-strength alloy steel resists bending, shock, and heavy loading.
Reduce total cost of ownership: Less maintenance, less downtime, and longer service intervals translate into greater productivity and profits.
SHIPPING & DELIVERY
At Kinton Parts, we ensure reliable, worldwide shipping of parts for excavators, bulldozers, and a full range of construction machines—safe, fast, and secure.
All products are securely packed using high-quality export cartons, reinforced wooden cases, or industry-standard palletized packaging to ensure maximum protection during transit and smooth handling during unloading.
Standard orders are typically shipped within 3–5 working days, while large or customized orders are usually dispatched within 7–20 days, depending on volume and production requirements.
We offer flexible global shipping options, including:
- International sea freight for cost-effective bulk transport
- Air freight for urgent orders
- Courier delivery (DHL, FedEx, UPS) for small-volume or sample shipments
Our logistics team manages every shipment carefully, providing real-time updates and tracking information until your order arrives safely at your destination.
Need assistance choosing the best shipping method for your location and timeline? Contact our team — we’ll help you plan a smooth delivery experience.
FAQ
Q: What are your main products?
A: We supply a full range of undercarriage and wear parts for excavators, bulldozers, and other heavy equipment. Our product line includes: Track rollers, carrier rollers, front idlers, sprockets, segments, track shoes, track chains, bolt and nuts, pins and bushings, bucket teeth and adaptors, filters, seal kits, swing bearing, and hydraulic cylinder—plus other essential replacement parts.
Q: Which countries do you export to?
A: Kinton Parts exports to over 60 countries worldwide, including:
USA, Canada, UK, Germany, Russia, UAE, Indonesia, Malaysia, Thailand, India, Pakistan, Bangladesh, Sri Lanka, South Africa, Colombia, Peru, and many others.
Q: Can I order a sample?
A: Yes, we accept trial orders. For parts in stock, samples can be shipped quickly. If you have technical drawings or existing samples, we also support customized production and mold development.
Q: How can I track my order after shipping?
A: Once your order is shipped, we will provide you with all necessary tracking information based on the shipping method. For express deliveries, you’ll receive a tracking number to follow the shipment online. For air or sea freight, we’ll send you the relevant documents such as the airway bill (AWB) or bill of lading (B/L), along with the packing list and commercial invoice to help with tracking and customs clearance.
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Trusted by professionals worldwide, Kinton Parts supplies premium-quality components for excavators, bulldozers, and more—with reliable quality you can count on.
