CAT 304E Mini Excavator Undercarriage Parts Drive Sprocket Wheel
The CAT 304E sprocket is a key driving component in the excavator undercarriage system, responsible for transferring power from the travel motor to the track chain. Manufactured from high-strength alloy steel with advanced heat treatment and precision machining, it offers excellent wear resistance, accurate tooth engagement, and stable performance for compact excavator applications.
| Color | Black, Customized, Yellow |
|---|---|
| Material | 50Mn/40MnB |
| Surface Hardness | HRC53-58 |
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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 drive sprocket is installed at the rear section of the undercarriage and works directly with the track links to convert hydraulic travel motor output into smooth track movement. As an important replacement sprocket for CAT 304E mini excavators, it ensures reliable traction, accurate movement, and consistent power delivery during daily operations. The CAT 304E sprocket is optimized for compact machines that frequently perform turning, positioning, and movement in confined spaces.
Precision Manufacturing for Smooth Track Engagement
Each CAT 304E sprocket is produced through a controlled manufacturing process, including material preparation, forging or casting, CNC machining, heat treatment, and strict final inspection.
Advanced machining technology ensures accurate tooth spacing, mounting dimensions, and concentricity. Proper manufacturing accuracy enables smoother engagement with the track chain, reduces vibration during travel, and improves the overall efficiency of the excavator travel system.
Tooth Rough Machining
The sprocket blank is machined on a CNC lathe or gear hobbing machine to form the basic tooth profile.
Inner Ring Installation & Precision Machining
The inner ring is inserted and the entire part is precisely machined to ensure concentricity and dimensional accuracy.
Drilling
Mounting and lubrication holes are drilled to meet the installation and functional requirements.
Tooth Grinding & Finishing
After heat treatment, the sprocket teeth are ground or polished to remove burrs and ensure smooth engagement.
Surface Cleaning
The sprocket undergoes surface cleaning, removing scale and residue, preparing it for surface treatment.
Painting & Final Coating
The sprocket is coated with durable industrial paint (available in various colors), providing corrosion resistance and a clean, professional appearance.
Quality Control
Every CAT 304E drive sprocket undergoes strict quality inspections throughout the production process. Material testing, hardness measurement, tooth profile inspection, dimensional verification, and appearance checks are carried out to ensure consistent quality and reliable field performance.
These inspection standards help guarantee precise fitment, stable operation, and a long service life.
Maintenance Recommendations
To maximize sprocket lifespan, operators should regularly check track tension, track link wear, and tooth condition. Maintaining proper track adjustment and replacing worn undercarriage components in time can prevent uneven wear and protect the travel system.
Cleaning dirt, stones, and debris from the undercarriage after operation also helps reduce abrasive wear and maintain smooth machine movement.
OEM Compatibility
This sprocket is specifically designed for:
- CAT 304E Compact Excavator
OEM reference numbers, technical drawings, and dimensional specifications can be provided upon request to verify accurate compatibility and installation requirements.
| 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.
Conclusion
The CAT 304E sprocket is designed to deliver efficient power transmission, accurate track engagement, and long-lasting durability for compact excavator applications. With high-strength alloy steel, advanced heat treatment, precision machining, and comprehensive quality control, it provides a dependable replacement solution for contractors, rental fleets, and equipment maintenance professionals looking for reliable CAT 304E undercarriage parts.
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.
