339-6951 Flexible Coupling for Heavy Machinery Caterpillar Excavator 320E 320EL 320ELN 320ELRR 320ERR 323D2L 323EL
339-6951 Rubber Coupling for CAT hydraulic pump
CAT 320D2 hydraulic pump engine drive coupling assembly
339-6951 3396951 CAT 320D2 hydraulic pump engine drive coupling assembly
339-6951 3396951 CAT 320D2 hydraulic pump engine drive coupling assembly 1
339-6951 3396951 CAT 320D2 hydraulic pump engine drive coupling assembly 2
339-6951 Flexible Coupling for Heavy Machinery Caterpillar Excavator 320E 320EL 320ELN 320ELRR 320ERR 323D2L 323EL
339-6951 Rubber Coupling for CAT hydraulic pump
CAT 320D2 hydraulic pump engine drive coupling assembly
339-6951 3396951 CAT 320D2 hydraulic pump engine drive coupling assembly
339-6951 3396951 CAT 320D2 hydraulic pump engine drive coupling assembly 1
339-6951 3396951 CAT 320D2 hydraulic pump engine drive coupling assembly 2

339-6951 Flexible Coupling for Heavy Machinery Caterpillar Excavator 320E 320EL 320ELN 320ELRR 320ERR 323D2L 323EL

Durable rubber flexible coupling for heavy equipment power transfer.

3396951 COUPLING GP-FLEXIBLE Caterpillar parts320E, 320E L, 320E LN, 320E LRR, 320E RR, 323D2 L, 323E L

Alternative (cross code) number:
CA3396951
339-6951
3396951

Product Features

  • OEM Replacement: Exact fit for Caterpillar and other machinery using 339-6951.

  • High Torque Capacity: Designed for efficient power transmission under heavy loads.

  • Shock & Vibration Absorption: Premium rubber reduces vibration and extends component life.

  • Durable Construction: Resistant to oil, wear, and extreme temperatures.

  • Easy Installation: Pre-molded flexible design simplifies alignment and fitting.

Flexible Coupling 339-6951 Description

The 339-6951 Flexible Coupling is a premium rubber component designed to connect rotating shafts in industrial and heavy-duty machinery. Engineered for high torque performance and resilience, this coupling ensures smooth power transmission while absorbing shock and vibrations. It serves as a direct OEM replacement part compatible with Caterpillar and similar construction equipment, making it ideal for B2B applications in OEM engine parts supply, power transmission systems, and vibration damping setups.

Made from high-grade elastomeric material, the coupling withstands harsh operating environments, reducing equipment downtime and maintenance costs. Whether used in excavators, loaders, or marine engines, it ensures equipment reliability and performance.

Looking for an OEM engine part supplier? We offer consistent quality, competitive pricing, and fast delivery.

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Product Parameter Table

Parameter Value
Part Number 339-6951
Type Rubber Flexible Coupling
Material Oil-resistant EPDM Rubber
Outer Diameter 244 mm
Inner Diameter 108 mm
Thickness 51 mm
Temperature Resistance -40°C to +120°C
Max Torque 1200 Nm
Compatible Equipment Brands Caterpillar, Komatsu, Volvo
Application Fields Engine, Transmission, Hydraulic

Get Free Quote of Flexible Coupling 339-6951

Looking for a reliable OEM rubber coupling manufacturer? At Yingfeng Rubber Products Co., Limited, we specialize in high-performance flexible couplings designed for demanding industrial and construction environments. With ISO-certified production, short lead times, and strong customization support, we are your trusted B2B partner for bulk sourcing of rubber components.

Submit your inquiry now and get a free technical consultation and competitive pricing tailored to your business needs.

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Product Application Title

Flexible Coupling 339-6951 Applications

339-6951: COUPLING-FLEXIBLE

SPECIFICATIONS FOR PART NUMBER 339-6951

  • Outside Diameter (in): 9.72

  • Width (in): 2.64

COMPATIBLE MODELS FOR PART NUMBER 339-6951

EXCAVATOR

320D 326 GC 320 320 GC 323 GC 323 GX 320 GX 323 325 320D2 320D2 FM 320D2 GC 320D2 L 320D3 320E 320E L 320E LN 320E LRR 320E RR 323D2 323D2 L 323D3 323E L 323E LN 323E SA 323GC 323D L 320D GC

FOREST PRODUCTS

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339-6951 Flexible Coupling for Heavy Machinery Caterpillar
339-6951 Flexible Coupling for Heavy Machinery Caterpillar

Flexible Coupling 339-6951 Installation Video

Flexible Coupling 339-6951 Detail Display

More Information

Q1: What is the function of the 339-6951 flexible coupling?

A1: The 339-6951 flexible coupling serves to connect two rotating shafts and transmit torque while compensating for minor misalignments. It also absorbs shocks and vibrations, thereby extending the lifespan of surrounding components such as bearings and engines.

Q2: Is this coupling compatible with Caterpillar machinery?

A2: Yes, the 339-6951 is an OEM-compatible part for several Caterpillar machines, especially in engine and hydraulic system assemblies. Always confirm with technical drawings or part manuals for precise compatibility.

Q3: What material is used in this flexible coupling?

A3: This coupling is manufactured from high-grade EPDM rubber, which is known for its excellent resistance to oil, heat, and wear. It’s an ideal material for industrial environments with heavy vibration.

Q4: Can I use it in marine engines?

A4: Absolutely. The rubber’s resistance to corrosion and its vibration-damping properties make it suitable for marine engine use, especially in propulsion systems and power units exposed to variable loads.

Q5: Do you offer custom sizes or designs?

A5: Yes. Yingfeng Rubber provides custom OEM rubber coupling solutions. We support design-to-delivery services, including mold creation, performance testing, and branding.

Q6: How long does the 339-6951 coupling last in service?

A6: Service life depends on the load, environment, and installation accuracy. Under normal conditions, it can last 2–5 years. Regular inspection and alignment maintenance will extend its lifespan.

Q7: Is it suitable for high torque transmission?

A7: Yes, this coupling is designed for high torque loads up to 1200 Nm. It ensures stable operation even in construction and mining machines with heavy mechanical stress.

Q8: How should I store this product before installation?

A8: Store in a cool, dry place away from sunlight, ozone sources, and sharp objects. Avoid extreme humidity and temperatures to maintain the rubber’s flexibility.

Q9: Can I order a sample before bulk purchase?

A9: Certainly. We encourage B2B clients to request free samples for testing, especially for customized or high-volume procurement projects.

Q10: Do you provide documentation or certificates?

A10: Yes, our products come with ISO 9001 certifications, material test reports, and dimensional drawings upon request. We also provide MSDS and REACH compliance if needed.

Q11: How fast can I receive the goods?

A11: For standard parts, we offer 1-3 day dispatch. For bulk or customized items, lead time typically ranges from 7-15 working days. We provide fast shipping globally.

Q12: Why choose Yingfeng Rubber as your supplier?

A12: We combine manufacturing expertise, strict quality control, and B2B-centric customer service. Our competitive pricing, customization capabilities, and prompt technical support make us a reliable supplier in the rubber component industry.

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