ranroswang@hksparkling.com 
+86 138 2341 8469
SPARKLING 313D Swing Reducer – Durable Excavator Part for Smooth Operation
The Caterpillar Swing Reducer (Part No. 333‑3073 / 3333073) is a premium swing gearbox designed to restore smooth and powerful 360° rotation in CAT excavators—compatible with 312D, 312DL, 312D2, 312E, 313D, 313D2, 314C, and 314E models.
It features hardened steel planetary gears, sealed bearings, and robust housing to handle heavy-duty rotational loads while preventing leaks and contamination . Available as genuine OEM or high-quality aftermarket units, this swing reducer ensures a direct-fit replacement and optimized machine performance.
The SPARKLING 313D Swing Reducer is a vital component designed to deliver smooth and efficient rotation for excavators. Manufactured with precision engineering and high-quality materials, this swing reducer guarantees long-lasting performance and reliability under demanding working conditions.
Since 2013, SPARKLING MACHINERY has been dedicated to producing High Quality excavator parts that prioritize stability, accuracy, and endurance. The 313D Swing Reducer exemplifies these values, ensuring your excavator operates seamlessly whether in construction, mining, or other heavy-duty applications.
Compatible with leading brands such as Caterpillar, Komatsu, Hitachi, and Volvo, the 313D Swing Reducer is engineered for easy integration into various models. Its robust design reduces wear and tear, minimizes maintenance needs, and improves operational efficiency, ly helping you save on downtime and repair costs.
SPARKLING’s strict manufacturing standards and quality control processes mean each swing reducer performs reliably in diverse environments. We also offer tailored solutions and expert technical support to meet your specific needs, ensuring you get the best fit and functionality.
Choose the SPARKLING 313D Swing Reducer for a trustworthy, cost-effective upgrade to your excavator, backed by a global network of service and a commitment to innovation and customer satisfaction.
Product Image
Frequently Asked Questions
What types of excavator parts do you manufacture?
We manufacture a wide range of excavator parts, including hydraulic components, undercarriage parts, engine parts, wear parts, and more. Our products are designed to fit a variety of excavator models and are built to meet the highest quality standards.
Do you offer customized parts?
-
Yes, we offer tailored solutions to meet specific customer requirements. Whether you need custom dimensions or specialized features, we can design and produce parts that perfectly match your excavator’s needs.
-
Are your products covered by a warranty?
-
Yes, all of our excavator parts come with a warranty to ensure quality and reliability. The warranty period may vary depending on the type of part. Please contact us for detailed warranty terms for specific products.
-
Can I get technical support for installing your parts?
Absolutely. We provide technical support and guidance for the installation and maintenance of our parts. Our team is available to assist you with any questions or concerns to ensure proper installation and optimal performance.
CATERPILLAR EXCAVATOR 312D L 312C 313D2 GC 313D2 333-3073 3333073 SWING REDUCER
The Caterpillar Swing Reducer (Part No. 333‑3073 / 3333073) is a premium swing gearbox designed to restore smooth and powerful 360° rotation in CAT excavators—compatible with 312D, 312DL, 312D2, 312E, 313D, 313D2, 314C, and 314E models.
It features hardened steel planetary gears, sealed bearings, and robust housing to handle heavy-duty rotational loads while preventing leaks and contamination . Available as genuine OEM or high-quality aftermarket units, this swing reducer ensures a direct-fit replacement and optimized machine performance.
Caterpillar HIGH-QUALITY EXCAVATOR PARTS MADE IN CHINA NEW 302.7D 386-0875 3860875 RELIEF VALVE SPARKLING MACHINERY
SPARKLING MACHINERY's new 386-0875 (3860875) Relief Valve is a core hydraulic system component specifically designed for Caterpillar 302.7D excavators, suitable for construction and mining applications. It regulates and stabilizes hydraulic system pressure, preventing overpressure damage to hydraulic components.
Compliant with Caterpillar OEM standards (Part No.: 386-0875 / 3860875), this component exhibits excellent pressure control accuracy and sealing performance, ensuring seamless compatibility with original equipment and long-term reliable operational performance.
24V Magnetic Switch Assembly 125-1302 1251302 for Caterpillar CAT Excavator 320C 320D 330D Premium Starter Relay Replacement
Key Features
OEM-Equivalent Fit: Direct replacement for CAT part number 125-1302 with precise dimensions and electrical compatibility
Heavy-Duty Construction: Manufactured with high-quality materials for enhanced durability, vibration resistance, and long service life
Stable Electrical Performance: Provides reliable current transmission to reduce starting failures and protect the starter system
Built for Harsh Environments: Excellent resistance to heat, moisture, and corrosion, suitable for tough construction sites
Applications
Caterpillar CAT Excavators: 320C, 320D, 330D
Engine starting and electrical systems
Benefits
✔ Improves starting reliability
✔ Extends starter motor lifespan
✔ Reduces maintenance costs and machine downtime
✔ Ideal for aftermarket and replacement use
VOLVO EXCAVATOR PARTS MADE IN CHINA NEW EC350E EC380EHR 14508626 WIPER RELAY SPARKLING MACHINERY
SPARKLING MACHINERY NEW EC350E EC380EHR 14508626 Wiper Relay is a key electrical control component for Volvo EC350E and EC380EHR excavators (widely used in heavy construction, mining, and infrastructure projects). As the "wiper operation controller", it regulates power supply to the excavator’s windshield wiper system—enabling smooth wiper activation, speed adjustment, and shutdown during rainy, snowy, or dusty conditions. This ensures clear visibility for operators during tasks like digging, lifting, and rock breaking, while preventing wiper motor damage from electrical overloads.
Meeting Volvo OEM standards (part no. 14508626), it endures -30°C to 85°C temperatures, resists moisture and vibration, and guarantees stable electrical switching. Strict testing ensures seamless compatibility with the two Volvo models and long-term reliability of the wiper system.
Contact us
Email: ranroswang@hksparkling.com
Wechat: +86 136 0901 0879
Skype: foreverlucia1
WhatsApp: +86 136 0901 0879
Address: No. 514-515, Hulin Road, Tianhe District, Guangzhou, China.
Sparkling Machinery Co.,Ltd
foreverlucia1