CAT 304E Mini Excavator Front Idler Wheel Undercarriage Part
The CAT 304E idler is a critical undercarriage component designed to guide the track chain, maintain proper track tension, and ensure smooth movement of compact excavators. Manufactured with high-strength steel, precision machining, and advanced heat treatment, it provides excellent wear resistance, impact durability, and reliable performance in daily construction operations.
| Color | Black, Customized, Yellow |
|---|---|
| Surface Hardness | HRC53-58 |
| Material | 50Mn/40MnB |
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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 CAT 304E front idler is installed at the front section of the track frame and works together with the track adjuster assembly to maintain correct track alignment and tension. As a dependable replacement idler for CAT 304E mini excavators, this component is specially designed to meet the operational requirements of compact machines. Unlike large excavators or bulldozers operating under extreme pushing loads, the 304E requires an idler that delivers precise track guidance, smooth maneuverability, and stable performance in narrow and frequently changing job environments.
Precision Manufacturing and Quality Assurance
Each CAT 304E idler is produced under strict manufacturing standards. The production process includes raw material preparation, forming, precision CNC machining, heat treatment, dimensional inspection, and final surface finishing.
Critical mounting areas and contact surfaces are accurately processed to ensure proper installation and stable operation. Before shipment, every idler undergoes comprehensive quality checks including dimensional verification, hardness testing, and appearance inspection to guarantee consistent product quality.
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.
OEM Compatibility
This idler is specifically designed for:
- CAT 304E Compact Excavator
OEM reference numbers, technical drawings, and dimensional specifications can be provided upon request for accurate fitment verification and compatibility confirmation.
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.
Quality Control
Every idler undergoes strict inspection throughout the manufacturing process. Material quality checks, heat treatment verification, dimensional measurements, hardness testing, and final visual inspections are carried out to ensure each component meets OEM performance requirements.
These quality control procedures ensure reliable fitment, consistent durability, and long service life in practical operating conditions.
Conclusion
The CAT 304E idler is engineered to provide accurate track guidance, reliable tension support, and long-lasting durability for compact excavator applications. Combining high-strength materials, precision manufacturing, advanced heat treatment, and strict quality control, it offers a dependable replacement solution for contractors, rental fleets, and maintenance professionals seeking high-quality undercarriage parts for CAT 304E excavators.
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.
