Automotive Rubber Parts

Caterpillar 5N-3272 Rubber Coupling Drive Block Replacement

Size / Dimensions 502.9 × 77.22 × 74.68 mm
Material EPDM 70 Shore A

Send drawings, sample photos, size, quantity, material requirement, and working conditions for a faster quotation.

Product Overview

Reliable custom rubber parts for industrial applications

Quick Answer

This compatible Caterpillar 5N-3272 rubber coupling boot is manufactured from black EPDM rubber. It measures 502.9 × 77.22 × 74.68 mm, weighs 1.15 kg and operates from -40°C to +120°C. The molded boot is suitable for compatible flexible coupling replacement and aftermarket service-part requirements.

Product Overview

The Caterpillar 5N-3272 rubber coupling drive block is a molded elastomeric insert designed for flexible jaw couplings in engine auxiliary-drive assemblies. Six blocks are installed between the jaw lugs of the driving and driven coupling discs. The opposing slots engage the lug faces and transmit rotational torque through controlled rubber compression and shear deformation. This structure helps accommodate torsional shock, vibration and limited angular misalignment between the engine and the driven equipment. The replacement set can be reviewed for CAT 3200 and 3300 series diesel-engine applications. Buyers should confirm the Caterpillar part number, coupling-disc dimensions, operating speed, driven equipment and installation interface before ordering.

Key Features

  • Replacement rubber coupling drive block for Caterpillar part number 5N-3272 / 5N3272.
  • Supplied as a complete set of six molded rubber blocks.
  • S-section or Z-section profile with upper and lower drive slots on opposing faces.
  • Designed to engage the jaw lugs of flexible coupling discs without separate fasteners.
  • Rubber deformation supports torque transfer while helping absorb torsional shock and vibration.
  • Available in high-durometer NR/SBR or NBR compound options.
  • Specified hardness range: 60–70 Shore A.
  • Compatibility should be verified using the engine model and coupling-disc part number.

Size / Dimensions

Dimension ItemSpecification
Part Number5N-3272
Length502.9 mm
Width77.22 mm
Height74.68 mm
Weight1.15 kg

Product Specifications

SpecificationDetails
Product NameCompatible Caterpillar 5N-3272 Rubber Coupling Boot
Reference Part Number5N-3272
MaterialEPDM rubber
HardnessAvailable upon request
ColorBlack
Weight1.15 kg
Operating Temperature-40°C to +120°C
Manufacturing ProcessRubber molding
ApplicationFlexible coupling boot replacement for heavy-duty equipment assemblies
CustomizationCustom rubber compounds, Shore A hardness, dimensions, packaging and labeling can be reviewed according to the application requirements.
MOQContact us for details
ToolingTooling cost depends on the drawing and product structure
Sample AvailabilityAvailable upon request
Lead TimeAvailable upon request
Compliance OptionsAvailable upon request

Applications

The compatible Caterpillar 5N-3272 rubber coupling boot can be reviewed for equipment maintenance and replacement-part requirements involving flexible coupling assemblies. The molded EPDM boot helps protect the coupling interface from dust, moisture and external contaminants while accommodating vibration and limited relative movement during operation. Typical sourcing requirements may involve generator equipment, industrial engines, marine equipment and heavy machinery. Compatibility should not be confirmed from appearance alone. Buyers should provide the original part number, equipment model, installation photos and existing component dimensions so the replacement boot can be checked before quotation or sample preparation.

Customization Options

The standard 5N-3272 replacement configuration is manufactured from black EPDM rubber and measures 502.9 × 77.22 × 74.68 mm. Custom requirements can be reviewed according to a 2D drawing, 3D model or physical sample. Buyers can specify rubber compound, Shore A hardness, dimensional tolerance, packaging method, labeling and order quantity. If the boot is intended for a different coupling assembly, please provide the installation dimensions, equipment model, working temperature, environmental exposure and estimated annual demand. Material selection depends on the application conditions. Tooling cost depends on the drawing and product structure.

What Information Should Buyers Provide for a Quote?

  • Reference part number
  • Equipment model
  • Product drawing or physical sample
  • Installation photos
  • Dimensions and tolerances
  • Rubber material
  • Shore A hardness
  • Operating temperature
  • Contact media
  • Application environment
  • Required quantity
  • Estimated annual volume
  • Packaging requirements

FAQ

What is the reference part number for this rubber coupling boot?

The reference part number is 5N-3272. The product is intended for replacement requirements involving compatible coupling assemblies. Buyers should provide the original part number and equipment model so the installation interface can be checked before ordering.

What are the dimensions of the 5N-3272 rubber coupling boot?

The specified boot dimensions are 502.9 mm in length, 77.22 mm in width and 74.68 mm in height. The individual product weight is 1.15 kg. Please confirm these values against the original component before placing an order.

What material is used for the rubber coupling boot?

The specified material is EPDM rubber. The standard color is black. EPDM is suitable for the stated operating temperature range of -40°C to +120°C. Custom compound requirements can be reviewed according to the actual application conditions.

How should buyers confirm compatibility?

Please provide the equipment model, original part number, installation photos and existing boot dimensions. A physical sample is recommended when the original specification is incomplete. Compatibility should be reviewed before batch ordering, especially for replacement-part applications.

Are samples available for inspection?

Sample availability is available upon request. Please provide the required quantity, delivery location and equipment information. If dimensional matching is required, send the original component, a technical drawing or clear measurement photos for review.

Can the packaging and labeling be customized?

Custom packaging and labeling can be reviewed for aftermarket distribution and service-part supply. Please provide the required packaging method, label content, order quantity and estimated annual demand when requesting a quotation.

Request a Custom Quote

Send your equipment model, reference part number, installation photos or physical sample for a compatibility review of the 5N-3272 rubber coupling boot. Please include the required quantity, delivery schedule, packaging requirements and estimated annual demand so we can prepare a formal quotation.

Technical Information

Product specifications

Final specifications depend on your drawing, sample, material selection, and working conditions.

Product Name Caterpillar 5N-3272 Rubber Coupling Drive Block Replacement
Size / Dimensions 502.9 × 77.22 × 74.68 mm
Material EPDM 70 Shore A
Application / Use Case Designed as a replacement rubber insert set for flexible jaw couplings in engine auxiliary-drive systems. Typical driven equipment includes hydraulic pumps, alternators, compressors, generators and PTO accessories. Compatibility should be verified against the engine model and coupling-disc part number.
Customization Available by drawing, sample, dimensions, application requirements, material requirements, and working conditions.

Manufacturing Support

From drawing review to export delivery

Julong Rubber supports custom rubber product projects from material selection and tooling to sampling, inspection, packaging, and international shipment.

Drawing or Sample Based

Production can be developed from 2D drawings, 3D files, physical samples, or application requirements.

Material Selection

We help compare rubber materials according to temperature, oil, weather, compression, load, and chemical exposure.

Tooling and Sampling

Tooling, first samples, adjustment, and pilot production can be arranged before mass production.

Quality Control

Dimensional inspection, hardness checks, visual inspection, packaging review, and batch control support.

FAQ

Common questions

These answers help purchasing teams and engineers confirm whether the product fits their project before sending an RFQ.

Can you manufacture this product based on my drawing or sample?

Yes. Julong Rubber supports OEM and ODM production based on 2D drawings, 3D files, physical samples, and real application requirements.

Can the size, material, hardness, and color be customized?

Yes. Size, material, hardness, color, structure, surface finish, and packaging can be customized according to your working conditions and order requirements.

What information should I send for quotation?

Please send drawings or sample photos, dimensions, material requirements, quantity, application, tolerance, working environment, and any compliance requirements.

Do you support sample production before mass order?

Yes. Sample production and pilot orders can be arranged after tooling or process confirmation, depending on the product structure and project requirements.

Start Your Custom Rubber Project

Need Caterpillar 5N-3272 Rubber Coupling Drive Block Replacement for your application?

Send us your drawing, sample, target quantity, and working conditions. Our team will help review material, tooling, production process, and quotation details.

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