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.
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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?
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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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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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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.
Hyundai Oil Cooler Assy 11M8‑40032 / 11M8‑43120 for R55‑7 & R55W‑7 Excavators
The Hydraulic Oil Cooler Assembly (part no. 11M8‑40032 / 11M8‑43120) is a high-efficiency, all‑aluminum plate‑fin heat exchanger engineered for Hyundai compact excavators—specifically R55‑7 and R55W‑7 (also fitting R60‑7). Built free of epoxy, this OEM‑spec cooler ensures optimal heat dissipation and withstands continuous high pressure (up to 2 MPa), making it a reliable drop‑in replacement for demanding operation environments
Made In CHINA SPARKLING MACHINERY SK140SRLC E135B YY10V00009F4 YY10V00014F1 YY10V00009F1 YY10V00009F5 HYDRAULIC PUMP
The Made in China SPARKLING MACHINERY SK140SRLC/E135B Hydraulic Pump (Part Numbers: YY10V00009F4, YY10V00014F1, YY10V00009F1, YY10V00009F5) is a high-performance core component engineered for Kobelco SK140SRLC and E135B excavators. As the "heart" of the hydraulic system, it delivers consistent power transmission, ensuring smooth operation of lifting, digging, and rotating functions in heavy-duty construction scenarios. Crafted with premium materials and advanced manufacturing techniques, this pump withstands high pressure and harsh working conditions. Backed by SPARKLING’s strict quality standards, it minimizes leakage risks, reduces energy loss, and maximizes machine efficiency—your reliable choice for uninterrupted excavator performance.
CRAWLER EXCAVATORS E235BSR E235BSRLC E235BSRNLC YF30V00011F1 YF30V00011F3 YF30V00011F4 HYDRAULIC CONTROL VALVE
Precision Hydraulic Control Valve for E235BSR Series Crawler Excavators
Engineered for E235BSR, E235BSRLC, and E235BSRNLC crawler excavators, the Hydraulic Control Valve (YF30V00011F1/F3/F4) is the intelligent nerve center of your machine’s hydraulic system. This OEM-compatible valve integrates advanced flow distribution and pressure regulation technologies, enabling seamless coordination of multiple actuators (boom, arm, swing, travel) under heavy loads. Featuring hardened spools with laser-etched metering profiles and triple-layer Nitrile seals6, it minimizes internal leakage, reduces heat generation, and eliminates sudden pressure drops during complex compound operations. Rigorously tested to exceed 500,000 cycles at 350 bar4, SPARKLING MACHINERY’s valve ensures precise controllability in demanding applications – from trenching to lifting – while extending pump life by stabilizing system pressure fluctuations.
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.