SPARKLING CAT Excavator Swing Drive
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 CAT Excavator Swing Drive is a critical component designed to deliver smooth and reliable rotational motion for your excavator’s upper structure. Engineered with precision and durability in mind, this swing drive ensures optimal performance in a variety of working conditions, from construction sites to mining operations.
As a product of SPARKLING MACHINERY, a trusted name since 2013, this swing drive is manufactured under stringent quality controls to guarantee stability and long service life. Our expertise in excavator parts enables us to provide a product that not only fits CAT models perfectly but also offers excellent compatibility with industry-leading excavator brands.
The swing drive combines robust materials and advanced engineering, ensuring your excavator operates efficiently with reduced downtime. Its design helps maintain smooth rotation, which improves maneuverability and reduces wear on other machine components, ly lowering your maintenance costs.
At SPARKLING, we understand the value of dependable machinery parts. That’s why our CAT excavator swing drive undergoes rigorous testing to meet the highest standards of performance and reliability. In addition to quality products, we offer customized solutions and technical support to meet your specific needs, providing you with a seamless experience from purchase to operation.
Choose SPARKLING CAT Excavator Swing Drive for proven durability, precision, and exceptional value. Enhance your excavator’s performance and minimize operational risks with a component trusted by professionals worldwide.
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FAQ
Are your products covered by a warranty?
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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.
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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.
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.
Do you offer customized parts?
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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.
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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.
SPARKLING MACHINERY CX470B KTJ14351 KTJ11660 EXCAVATOR HYDRAULIC CONTROL VALVE ASSY
Hydraulic Control Valve Assembly KTJ14351 / KTJ11660 for CASE CX470B Excavator
The KTJ14351 / KTJ11660 Hydraulic Control Valve Assembly is a high-performance OEM-compatible part specifically designed for the CASE CX470B excavator. Manufactured by SPARKLING MACHINERY, this control valve ensures precise and responsive hydraulic fluid distribution to key working functions such as boom, arm, bucket, and travel.
This unit is built for heavy-duty operation, delivering accurate flow control under high pressure. Ideal for demanding excavation, lifting, or demolition work, the assembly maintains the machine's power, speed, and stability while minimizing hydraulic losses.

VOLVO EXCAVATOR PARTS MADE IN CHINA NEW EC200D EC210 EC210B EC210C EC210D 14518516 RELIEF VALVE SPARKLING MACHINERY
SPARKLING MACHINERY NEW EC200D EC210 EC210B EC210C EC210D 14518516 Relief Valve is a dedicated hydraulic safety component for VOLVO EC200D, EC210, EC210B, EC210C, and EC210D crawler excavators (mid-to-heavy-duty equipment for construction, municipal engineering, and light mining). As the core safety guard of the excavator’s hydraulic system, it precisely limits maximum pressure to protect pumps, cylinders, and pipelines from overload damage during trench digging, material loading, and small-scale rock breaking.
Meeting VOLVO OEM standards (part no. 14518516), it endures 32 MPa pressure, -25°C to 105°C temperature fluctuations, and continuous vibration. It resists oil contamination and wear, ensuring long-term reliability for the five VOLVO models, with strict performance testing guaranteeing seamless compatibility and safe operation.

WHEEL EXCAVATOR SPARE PARTS ZGAQ-02250 JOINT HOUSING-RH FOR R170W-7 R170W-7A R170W-9S R180W-9S
SPARKLING MACHINERY offers the high-quality ZGAQ-02250 Joint Housing (RH), compatible with Hyundai wheel excavator models R170W-7, R170W-7A, R170W-9S, and R180W-9S. Precisely manufactured for a perfect fit and long-lasting performance, each unit is quality-checked before shipment. Ideal for dealers, repair shops, and end users, we ensure competitive pricing, fast global delivery, and responsive after-sales support. Trust SPARKLING MACHINERY — your professional partner in excavator spare parts.
Sparkling Machinery Co.,Ltd
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