CAT 328-9149 Permanent Coupling
Product Overview
The CAT 328-9149 Permanent Coupling is a genuine Caterpillar OEM hydraulic hose coupling engineered to provide a secure, leak-free connection between Cat hydraulic hoses and hydraulic system components. This coupling is part of Caterpillar’s XN Spiral Hose product line and features a 67.5-degree Code 61 flange connection, making it suitable for high-pressure hydraulic applications requiring exceptional reliability and durability. It is manufactured to meet or exceed Caterpillar’s stringent OEM quality standards for hydraulic performance.
Manufactured from zinc-plated carbon steel, the 328-9149 Permanent Coupling offers excellent resistance to corrosion, vibration, and demanding operating conditions. Designed for use with SAE 100R12 and SAE 100R15 hydraulic hoses, it delivers dependable sealing and long service life in construction, mining, industrial, and heavy equipment applications.
Key Features
- Genuine Caterpillar OEM Permanent Coupling
- Part Number: 328-9149
- Cat® XN Spiral Permanent Coupling
- 67.5° Code 61 Flange configuration
- Permanent crimp-style hydraulic hose fitting
- Manufactured from zinc-plated carbon steel
- Corrosion-resistant finish for extended service life
- Designed for high-pressure hydraulic systems
- Compatible with SAE 100R12 and SAE 100R15 hydraulic hoses
- Supports reliable, leak-free hydraulic connections
- Direct OEM replacement for Caterpillar hydraulic hose assemblies
Technical Specifications
| Specification | Details |
|---|---|
| Part Number | 328-9149 |
| Product Type | Permanent Coupling |
| Coupling Series | Cat® XN Spiral |
| Connector Style | Code 61 Flange |
| Flange Angle | 67.5° |
| Connector Size | -8 Code 61 Flange |
| Material | Carbon Steel |
| Finish | Zinc Plated |
| Connector Type | Permanent (Crimp) |
| Recommended Hose Size | 1/2 in (12.7 mm) |
| Compatible Hose Types | SAE 100R12, SAE 100R15 |
| Overall Length | 3.23 in (82 mm) |
| Drop Length | 1.26 in (32 mm) |
| Cut-Off Factor | 1.85 in (47 mm) |
| Seal Options | NBR (4J-5140), FKM (291-8217) |
| Brand | Caterpillar (CAT) |
Application Information
The CAT 328-9149 Permanent Coupling is designed for permanent attachment to Caterpillar hydraulic hoses used in high-pressure hydraulic systems. When properly crimped using approved Caterpillar hose assembly equipment, it provides a robust, leak-resistant connection capable of withstanding demanding operating pressures and harsh working environments.
Typical applications include:
- Hydraulic pressure lines
- Implement hydraulic systems
- Construction equipment hydraulic circuits
- Mining equipment hydraulic systems
- Industrial hydraulic power systems
- Heavy-duty mobile equipment
This coupling is intended for use with Caterpillar hydraulic hose assemblies and should be installed following Caterpillar hose assembly procedures to ensure optimal performance and safety.
Compatible Caterpillar Equipment
The CAT 328-9149 Permanent Coupling is used as a hydraulic hose assembly component across various Caterpillar machines and hydraulic systems.
At this time, Caterpillar does not publish specific compatible equipment models for this individual coupling. Compatibility depends on the hydraulic hose assembly design, hose specification, and machine configuration.
Additional Compatibility Information
Before ordering or assembling a hose, verify:
- Hydraulic hose part number
- Hose inside diameter (1/2 in / 12.7 mm)
- Hose type (SAE 100R12 or SAE 100R15)
- Flange style (Code 61)
- Flange size (-8)
- Coupling angle (67.5°)
- Seal material requirements (NBR or FKM)
- Machine Product Identification Number (PIN) or Serial Number
- Caterpillar hose assembly specifications
Using the correct coupling and hose combination is essential for maintaining hydraulic system safety, performance, and Caterpillar warranty compliance.
Benefits
Installing a genuine CAT 328-9149 Permanent Coupling helps:
- Ensure leak-free hydraulic hose connections
- Maintain OEM hydraulic system performance
- Improve resistance to vibration and pressure cycling
- Extend hydraulic hose assembly service life
- Reduce downtime caused by hydraulic leaks
- Provide corrosion resistance with zinc-plated construction
- Support safe operation in high-pressure hydraulic applications
- Deliver OEM-quality fit, durability, and long-term hydraulic reliability
- Brand New / Genuine Surplus Caterpillar Part
- Professionally inspected before dispatch
- Ready for immediate shipment (subject to stock availability)
Worldwide Shipping
We maintain ready-to-ship inventory for many Caterpillar parts. Orders are dispatched the same business day upon receipt of bank payment, with fast worldwide delivery available via DHL and FedEx.
Disclaimer: We are an independent supplier of genuine surplus Caterpillar parts. We are not an authorized Caterpillar distributor or dealer. All trademarks, product names, and model numbers are used solely for identification purposes.
