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Caterpillar 5N3272 RUBBER BOOT

The Caterpillar 5N3272 Rubber Boot is a heavy-duty coupling boot designed to provide long-lasting protection and reliable sealing for Caterpillar 3500-series engines, generators, industrial engines, and heavy equipment. Manufactured from premium EPDM rubber, this boot resists heat, oil, weather, and abrasive contaminants, making it ideal for demanding environments in construction, mining, marine, and power generation applications.

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Description

5N3272 Rubber Boot Fit Caterpillar 3508 3508B 3508C 3512 3512B 3512C 3516 G399


Product Overview


The 5N-3272 Coupling Rubber Guard Boot is an advanced flexible component engineered to connect two shafts while compensating for angular, parallel, or axial misalignment. Manufactured from high-grade EPDM rubber, this coupling boot provides superior protection, effective shock absorption, and vibration reduction, ensuring stable and reliable shaft connections in demanding industrial environments.

Key Features

  • Easy Maintenance: Lightweight and flexible, enabling quick installation and replacement with minimal downtime.
  • Premium EPDM Rubber Construction: Offers excellent resistance to heat, ozone, ultraviolet light, and weathering. Maintains flexibility and elasticity across a wide temperature range.
  • Direct OEM Fit: Precisely engineered to match the original Caterpillar 5N3272 specifications for fast, secure installation. No modifications required.
  • Outstanding Durability: Withstands intense vibration, mechanical stress, and exposure to oil or grease, extending the life of your coupling system.
  • Oil and Abrasion Resistant: Resists swelling, softening, or degradation from exposure to engine oils and hydraulic fluids. Maintains performance even in oil-rich and abrasive environments.

Unique Advantages

  • OEM-Level Reliability: Manufactured to meet or exceed Caterpillar standards for performance, fit, and longevity.
  • Long Service Life: Designed for prolonged operation with minimal maintenance, reducing total cost of ownership.
  • Simple Installation: Flexible structure allows for fast replacement and secure fit, reducing machine downtime.
  • Versatile Compatibility: Suitable for various Caterpillar engines and equipment using the 5N3272 boot, both as an OEM replacement and as a high-quality aftermarket alternative.

Technical Specifications

ParameterValue
Part Number5N-3272
MaterialEPDM Rubber
Height74.68 mm
Length502.9mm
Width77.22mm
Weight1.15kg
ColorBlack
Operating Temperature-40°C to +120°C (Typical for EPDM)

Compatibility


The 5N-3272 Coupling Rubber Guard Boot is suitable for:

  • GEN SET ENGINE: 3512, 3516, 3508
  • MARINE ENGINE: D398A, D398B, D399
  • INDUSTRIAL ENGINE: 3512, D398, D399, D398B, 3516, 3508,3508B, 3508C, 3512, 3512B, 3512C, 3516, 3516B, 3516C, 7271, G3508, G3512, G3516, G3516B, G3516C, G3516E, G3520B, G3520C, G3520E, G399, PM3508, SR4B
  • GAS ENGINE: G398, G399

Applications

  • Construction Equipment: For loaders, bulldozers, excavators, graders, and other earthmoving machinery, providing dust and debris protection at coupling points.
  • Mining & Off-Highway Vehicles: Shields coupling joints in large mining trucks, drills, and other off-road heavy equipment operating in harsh environments.
  • Power Generation: Used in generator sets and power modules to maintain sealed connections and prevent contamination.
  • Marine & Industrial Engines: Protects couplings in marine propulsion systems and large stationary industrial engines.
  • Hydraulic Systems: Serves as a rubber bellows or guard for hydraulic couplings, maintaining oil resistance and contaminant exclusion.

Why Choose Our Coupling Rubber Guard Boot?

  • Engineered for Demanding Applications: Proven performance in power generation, marine, and heavy-duty industrial settings.
  • Stringent Quality Control: Manufactured under ISO-certified processes, ensuring consistent reliability.
  • Competitive Pricing & Fast Delivery: Direct factory supply with flexible order solutions.
  • Technical Support: Expert engineering team available for custom requirements or application consultation.

Additional information

Rubber Coupling Caterpillar Boot 5N3272

1. Material Composition: Natural Rubber, Silicone, Neoprene, etc.

2. Hardness: 50 –80 Shore A

3. Tensile Strength: Typically between 10-15 MPa (1,450-2,180 psi).

4. Elongation at Break: Ranges from 300-650%.

5. Compression Set: Good to very good, depending on the grade.

6. Temperature Resistance: -40°C—150°C

7. Chemical Resistance: Resistant to most weak acids, alcohols, and water. Vulnerable to oils, fuels, and certain solvents.

8. Color: Typically color:black. Custom color available.

9. Manufacturing Process: compression molding.

10. Dimensional Tolerance: DIN ISO 3302-1 Cl.2

11. Applications: Industries or Automotive.

12. Certifications: ISO, REACH, ROHS.

13.UV resistance, flame resistance.

14. Packaging: Ploybag+ Cartons. Pallets if needed.

Custom Rubber Parts with Easy

At Julong Rubber, We turn complex Into Simple! Follow the following 3 steps to start today!

first-step-to-order-rubber parts

Tell Us What You Need

Tell us as specific as possible of your needs, provide the drawing, reference picture and share your idea.

2nd step-to-order-rubber parts

Get Solution & Quote

We will work on the best solution according to your requirements and drawing, the specific quote will be provided within 24 hours.

3rd -step-to-order-rubber parts

Approve for Mass Production

We will start mass production after getting your approval and deposit, and we will handle the shipment.

Julong rubber expert

Get A Free Quote

Contact us to get a free quote and more expertise about custom rubber parts. Your project will meet the right solution at Julong Rubber.   

Email:info@rubberandseal.com

Julong rubber expert

Get A Free Quote

Contact us to get a free quote and more expertise about custom rubber parts. Your project will meet the right solution at Julong Rubber. 

Email:info@rubberandseal.com

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Kontaktieren Sie uns, um ein kostenloses Angebot und mehr Fachwissen zu kundenspezifischen Gummiteilen zu erhalten. Bei Julong Rubber finden Sie die richtige Lösung für Ihr Projekt.

Email:info@rubberandseal.com

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Contáctenos para obtener una cotización y más experiencia sobre piezas de caucho personalizadas. Su proyecto encontrará la solución adecuada en Julong Rubber.   

Correo electrónico:info@rubberandseal.com