456-8471 31.8 mm ID Hydraulic Hose
Cat® hydraulic hoses are flexible and can bend and route around various obstacles while maintaining their strength and durability
Description
Cat hoses are designed to route liquids and gases through machine systems. These hoses are made of quality materials built to withstand the application-specific pressure, vibration resistance and flow requirements of Cat heavy-duty equipment. Cat hydraulic hoses and couplings are tested using some of the most rigorous processes in the industry. Every Cat hose and coupling combination is tested as a system to ensure a perfect fit, maximizing safety and reliability. The Cat XT ES hose line is designed and manufactured by Caterpillar for high-pressure hydraulic applications. It covers a pressure range of 2500 to 6000 psi (17.5 to 42.0 MPa). The ES (Enhanced Spiral) construction is a proprietary Caterpillar design that is impulse tested to twice the industry standard. Cat hoses operate at just half the SAE bend radius, allowing tighter routing in a wide range of applications.
The hose is made with a fabric-reinforced synthetic rubber tube and four layers of spiral-wrapped high-tensile steel wire reinforcement (separated by layers of synthetic rubber). The rubber cover is oil-, weather- and abrasion-resistant.
Specifications
| Hose Warning | Improper selection of hose and coupling combinations will void the warranty and may result in serious personal injury or death, property damage, or failure of components and machine systems. Cat® hose assembly products are designed and tested as a system to provide reliable connections that maximize hydraulic system safety and reliability. In addition, properly maintained, appropriate Caterpillar tooling is recommended to ensure hoses are crimped to technical specifications. Using Caterpillar hose with another manufacturer's couplings, or Caterpillar couplings with another manufacturer's hose, may result in unreliable, unsafe, or poorly performing hose assemblies. Caterpillar does not recommend or authorize this practice. For more information, refer to SAE J1273 Section 6.3 and ISO 17165-2 Section 6.3. |
|---|---|
| Pressurization Capability | 96528 psi |
| Bulk Unit of Measure | CM |
| Inside Diameter | 31.75 mm (1.25 in) |
| Dash Size | -20 in |
| Outside Diameter | 49 mm (1.93 in) |
| Operating Pressure | 24132 kPa (3500 psi) |
| Operating Temperature | -40°C to 121°C |
| SAE | SAE 100R12 |
Compatible Equipment
- Excavators: 637K, 621K
Additional information
| Machine Model | |
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| Equipment Type | |
| Part Source | Genuine OEM |





