SPARKLING 314C Swing Gearbox – Reliable 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.
Product Summary:The SPARKLING 314C swing gearbox offers dependable and precise performance for excavators. Engineered for durability and compatible with leading brands, it ensures smooth operation in various working conditions.
SPARKLING 314C Swing Gearbox – Durable and Precise Excavator Component
Founded in 2013, SPARKLING MACHINERY is dedicated to delivering high-quality excavator parts that prioritize stability, precision, and durability. Our 314C swing gearbox exemplifies this commitment by providing reliable, efficient performance essential for modern excavator operations.
The swing gearbox plays a critical role in the excavator’s slewing system, responsible for smooth and controlled rotation of the upper structure. The SPARKLING 314C model is designed with advanced manufacturing standards and strict quality control. This ensures it can handle heavy loads and extreme working environments while maintaining consistent accuracy.
Compatible with top excavator brands such as Caterpillar, Komatsu, Hitachi, and Volvo, the 314C swing gearbox guarantees seamless integration. This broad compatibility allows customers to upgrade or replace broken units without worrying about fit or functionality.
Key features of the SPARKLING 314C swing gearbox include:
- Robust construction: Made from high-quality materials to resist wear and corrosion, prolonging service life.
- Smooth operation: Precisely engineered gears reduce backlash and vibration for stable rotation.
- Low maintenance: Designed for easy servicing and long-lasting performance in demanding conditions.
- Cost-effectiveness: Competitive pricing without compromising on quality, helping reduce overall maintenance costs.
At SPARKLING MACHINERY, we firmly believe in offering more than just parts. Our professional team provides customized solutions and ongoing technical support to ensure you get the ideal product to meet your needs. Whether you operate in construction, mining, or infrastructure development, our swing gearbox will enhance your excavator’s reliability and efficiency.
Choose the SPARKLING 314C swing gearbox for a trusted solution that supports your equipment’s performance day after day. With our global sales network and commitment to innovation, we aim to be your long-term partner in the excavator parts industry.
Why Choose SPARKLING 314C Swing Gearbox?
- Proven compatibility with major excavator brands
- High precision geared components for smooth slewing
- Built to last in challenging work environments
- Backed by SPARKLING’s technical expertise and customer service
Invest in the SPARKLING 314C swing gearbox to optimize your excavator’s performance, reduce downtime, and ensure durability you can trust. Experience the balance of strength and precision only SPARKLING can provide.
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Q&A
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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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.

HYUNDAI WHEEL EXCAVATOR R140W-9 FRONT AXLE STEERING GEAR ZGAQ-04067 CYLINDER-STEERING
The Hyundai ZGAQ-04067 Steering Cylinder is a precision-engineered hydraulic component for the front axle steering gear of the R140W-9 wheel excavator, delivering responsive steering performance and reliable durability in demanding jobsite conditions.

KOMATSU EXCAVATOR PARTS MADE IN CHINA NEW PC490 708-1T-13450/708-1T-13620 PLATE, VALVE SPARKLING MACHINERY
SPARKLING MACHINERY NEW PC490 708-1T-13450/708-1T-13620 Plate, Valve is a dedicated, high-precision hydraulic sealing component exclusively engineered for KOMATSU PC490 crawler excavators—heavy-duty equipment widely used in large-scale mining, construction, and quarrying projects. As a core sealing and pressure-regulating part of the excavator’s hydraulic valve assembly, it ensures tight sealing between valve components and assists in maintaining stable hydraulic pressure, preventing oil leakage and pressure loss during high-intensity tasks like rock breaking, bulk ore loading, and deep excavation. This function is vital for preserving hydraulic system efficiency, avoiding component damage from contamination, and reducing unplanned downtime that disrupts critical project workflows.
Engineered to meet KOMATSU’s original equipment (OEM) standards and compatible with part numbers 708-1T-13450 and 708-1T-13620, the Valve Plate withstands harsh working conditions: high hydraulic pressure (up to 36 MPa), extreme temperature fluctuations (-25°C to 105°C), and continuous vibration from heavy-duty use. It resists oil corrosion and mechanical wear, providing long-lasting sealing and pressure support for KOMATSU PC490 excavators. Backed by strict performance verification, it guarantees seamless compatibility and reliable operation for daily high-load tasks.

MADE IN CHINA SPARKLING MACHINERY NEW M313C M313D M315C 249-0974 OIL FILTER HEAD
SPARKLING MACHINERY NEW M313C M313D M315C 249-0974 Oil Filter Head is a dedicated hydraulic/engine system component exclusively designed for M313C, M313D, and M315C wheel loaders. As a core part of the machinery’s oil filtration system, it serves as the critical connection between the oil filter and the oil pipeline—securing the filter in place while directing oil flow through the filter media to remove contaminants (e.g., metal particles, sludge). This function is essential for maintaining oil cleanliness, protecting key components like hydraulic pumps, valves, and engine bearings from abrasive wear, and ensuring stable operation during heavy-duty tasks such as material loading, site grading, and construction waste handling.
Engineered to match original equipment performance standards, it maintains tight sealing and stable oil flow even under harsh working conditions, including continuous vibration, high oil pressure, and temperature fluctuations (-20°C to 80°C). It resists oil leakage and corrosion from oil additives, avoiding system contamination or pressure loss that could lead to unplanned downtime. Backed by strict performance verification, it guarantees reliable filtration system operation to support uninterrupted use of M313C/M313D/M315C wheel loaders.
Sparkling Machinery Co.,Ltd
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