ranroswang@hksparkling.com 
+86 138 2341 8469
SPARKLING CAT 312E Swing Motor – Durable & High-Performance 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.
The SPARKLING CAT 312E Swing Motor is engineered to deliver exceptional performance and durability for your excavator’s swing system. Designed specifically for the Caterpillar 312E model, this swing motor ensures smooth and efficient rotation, helping your machine operate with precision and stability.
Since 2013, SPARKLING MACHINERY has focused on producing high-quality excavator parts with an emphasis on reliability and craftsmanship. Our CAT 312E Swing Motor undergoes strict manufacturing and quality control processes to withstand harsh working environments, reducing downtime and maintenance costs. Its robust construction resists wear and tear, providing long service life even under heavy loads.
Compatible with other CAT components, the SPARKLING swing motor seamlessly integrates into your existing equipment without complicated modifications. We also offer customized solutions and professional technical support to meet the specific demands of your operations.
With SPARKLING, you get more than just a replacement part—you gain a trusted partner committed to innovation, precision, and cost efficiency. Our global sales network ensures timely delivery and continuous service before and after purchase, making us the go-to choice for excavator professionals worldwide.
Upgrade your CAT 312E excavator with SPARKLING’s reliable swing motor to experience enhanced machine control, reduced operational costs, and long-lasting performance.
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Frequently Asked Questions
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 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.
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.
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.
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.
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EXCAVATOR SEAL KIT EC160B EC180B EC360B EC290B SA8 230-36840 SA8230-36840 SA823036840 SEALING KIT
The SA8230-36840 Seal Kit from SPARKLING MACHINERY is designed for Volvo EC160B, EC180B, EC290B, and EC360B excavators. Made with high-grade NBR, PU, and PTFE, it offers reliable sealing, leak prevention, and durability for hydraulic maintenance, meeting OEM standards.
ZF 4472397016 4472.397.016 4472-397-016 BEARING PIN CHINA MADE 3KG
The ZF 4472397016 (also listed as 4472.397.016 / 4472-397-016) Bearing Pin is a high-precision component designed to provide reliable rotational alignment and structural support in ZF transmission and axle assemblies. Built from heat-treated, wear-resistant steel, this pin ensures long-term durability and smooth mechanical movement under heavy-duty conditions.
It is a perfect fit for ZF machinery applications where stability, strength, and OEM compatibility are essential. Each pin is manufactured to strict tolerances and undergoes rigorous quality control to meet or exceed OEM standards.
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.