SPARKLING CAT 312D Swing Gearbox – Durable Excavator Part

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.

Machine Model
312D L 312C 313D2 GC 313D2
Part Number
333-3073 3333073
Quality
China made
Condition
New
Gross Weight
75 Kg
MOQ
1 Pcs
INQUIRY
Product Details

The SPARKLING CAT 312D Swing Gearbox is a high-quality replacement part designed to fit perfectly with your Caterpillar 312D excavator. Manufactured by SPARKLING MACHINERY, a trusted name in excavator components since 2013, this swing gearbox delivers superior performance and durability to keep your machine running smoothly.

This swing gearbox is built with precision and stability in mind. It plays a crucial role in enabling smooth, controlled rotation of the excavator’s upper structure—ensuring efficient digging, lifting, and moving tasks. Thanks to advanced manufacturing processes and stringent quality control, the SPARKLING CAT 312D swing gearbox maintains reliable operation even in tough working conditions.

Choosing SPARKLING ensures you receive a product that combines longevity and cost-effectiveness. Its sturdy construction minimizes wear and tear, helping you avoid costly repairs and downtime. Plus, SPARKLING offers tailored solutions and expert technical support to meet your specific needs, reflecting our commitment to customer satisfaction.

Compatible not only with Caterpillar but also with other leading excavator brands like Komatsu, Hitachi, and Volvo, our swing gearboxes meet or exceed OEM standards. With SPARKLING MACHINERY, you benefit from competitive pricing without compromising quality.

In short, the SPARKLING CAT 312D Swing Gearbox is your reliable partner for maintaining excavator efficiency, extending service life, and optimizing operational costs. Trust SPARKLING to support your business with high-quality parts and continuous service.

Why Choose SPARKLING CAT 312D Swing Gearbox?

  • Precise fit for Caterpillar 312D excavators
  • Durable construction for long-term use
  • Enhances machine stability and smooth motion
  • Reduces maintenance frequency and costs
  • Backed by expert support and customization options
  • Compatible with major excavator brands

Invest in quality and reliability—choose SPARKLING for your excavator parts needs.

Detailed display

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  • Caterpillar 333‑3073 swing reducer, 3333073 gearbox, CAT 312D swing gearbox, CAT 312E swing motor, 313D swing reducer, 314C swing gearbox, CAT excavator swing drive, swing reducer replacement
  • Caterpillar 333‑3073 swing reducer, 3333073 gearbox, CAT 312D swing gearbox, CAT 312E swing motor, 313D swing reducer, 314C swing gearbox, CAT excavator swing drive, swing reducer replacement

Frequently Asked Questions

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 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?
  • 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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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.

If you don’t find your answer, please E-mail us and we’ll be happy to help you out.

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Guangzhou Shuori Machinery Equipment Co., Ltd
No514-515, Hulin Road, Tianhe District, Guangzhou, China.
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