SPARKLING Swing Reducer Replacement – Durable Excavator Parts
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 swing reducer replacement is designed to keep your excavator performing at its best. Manufactured with precision and engineered for durability, this component plays a crucial role in the smooth rotation of your excavator’s upper structure. Whether you operate Caterpillar, Komatsu, Hitachi, Volvo, or other leading brands, our swing reducer offers perfect compatibility and reliable performance.
Founded in 2013, SPARKLING MACHINERY has focused on providing high-quality excavator parts that withstand tough working conditions. Our swing reducers undergo strict quality control to ensure stability and precision, helping reduce downtime and maintenance costs. This replacement part is built to last, ensuring your excavator runs efficiently and safely even in the most demanding environments.
We understand that excavator parts are critical to your business, so we provide full technical support and customized solutions to meet your specific needs. With competitive pricing and a global sales network, SPARKLING MACHINERY is dedicated to delivering products that increase your equipment’s lifespan while optimizing your investment.
Choose SPARKLING swing reducer replacement for a dependable, cost-effective solution that supports your excavator’s peak performance, backed by years of industry expertise and customer-focused service.
Product Images
Frequently Asked Questions
What is the lead time for receiving excavator parts?
Our typical lead time depends on the complexity and quantity of the order. For standard parts, delivery usually takes between 7 to 14 days. For custom orders, the lead time may vary, but we always strive to ensure timely delivery.
How do you ensure the quality of your parts?
We follow strict quality control procedures throughout the manufacturing process. Our parts are tested for durability, performance, and precision to ensure they meet industry standards and exceed customer expectations.
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.
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.
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.

Made In CHINA SPARKLING MACHINERY 70SR-1E 80MSR 80MSR-1E YT10V00002F1 YT10V00002F2 MAIN PUMP
The Made in China SPARKLING MACHINERY 70SR-1E/80MSR/80MSR-1E Main Pump (Part Numbers: YT10V00002F1, YT10V00002F2) is a high-performance core component tailored for specific excavator models, including 70SR-1E, 80MSR, and 80MSR-1E. As the primary power source of the hydraulic system, it efficiently converts mechanical energy into hydraulic power, driving critical functions like arm movement, bucket operation, and machine rotation in construction and earthmoving tasks. Crafted with premium materials and advanced engineering, this main pump withstands high pressure and heavy loads, ensuring stable output and minimal energy loss. Backed by SPARKLING’s strict quality standards, it guarantees long-term reliability, reducing maintenance frequency and keeping your equipment operating at peak performance.
705-12-35250 Gear Pump for KOMATSU HM400-3R Dump Truck | Hydraulic Pump Assembly
The 705-12-35250 Gear Pump Assembly is a critical hydraulic component designed for KOMATSU HM400-3R Articulated Dump Trucks. This gear pump plays a vital role in ensuring smooth and efficient hydraulic flow for critical systems, including steering, braking, and body lifting functions.
Manufactured with high-precision machining and quality-tested materials, the 7051235250 gear pump offers excellent reliability, extended service life, and consistent performance under extreme working conditions. Whether you're replacing a worn-out unit or conducting scheduled maintenance, SPARKLING MACHINERY's aftermarket gear pump ensures optimal compatibility and long-term value.
EC300D ECR305C PL3005D SK135SR 14596499 VOE 14596499 VOE14596499 HYDRAULIC REGULATOR FOR K5V160DT-1E05
The Volvo Hydraulic Regulator (VOE 14596499) is a precision-engineered control valve integral to the K5V160DT-1E05 piston pump, used in machines like the EC300D, ECR305C, and PL3005D excavators. Built originally by Kawasaki and commonly sold as OEM or aftermarket units from trusted Chinese manufacturers, this steel body regulator weighs approximately 6.5 kg and ensures precise hydraulic flow control essential for pump stability and performance.