CAT 5N-8059 Air Starting Valve Lines Tube (4.57 mm ID)

Product Overview

The CAT 5N-8059 Air Starting Valve Lines Tube is a genuine Caterpillar OEM tube component designed to carry compressed air within the engine air starting system. With an inner diameter of 4.57 mm, this precision-manufactured tube provides a reliable passage for control air between air starting system components, helping ensure proper engine starting operation.

Engineered for Caterpillar heavy-duty engines and power systems, the 5N-8059 tube is designed to withstand pressure variations, vibration, and demanding operating environments. It provides secure connections and dependable airflow control during engine startup sequences.

Key Features

• Genuine Caterpillar OEM air starting valve line tube
• Inner diameter: 4.57 mm (0.18 in)
• Designed for compressed air starting systems
• Provides reliable airflow between starting system components
• Helps deliver control air for engine starting operation
• Designed for high-pressure air environments
• Resistant to vibration and temperature changes
• Manufactured to Caterpillar OEM specifications
• Supports dependable engine starting performance
• Direct replacement for compatible Cat applications

Technical Specifications

Application Function

The CAT 5N-8059 Air Starting Valve Lines Tube is used within air-starting systems to transfer compressed air signals and supply air between control components and the engine starting mechanism. Air starting systems use compressed air to initiate engine rotation until combustion begins and the engine operates independently.

Typical system components may include:

• Air starting control valve
• Air starter motor
• Pilot valve assemblies
• Starting air manifolds
• Engine starting control circuits

Compatible Caterpillar Equipment

The CAT 5N-8059 tube is associated with Caterpillar heavy-duty engine and power system applications, including:

Generator Sets

• SR4 Series

Industrial Engines

• 3508
• 3512
• 3516 Series

Generator Set Engines

• 3508
• 3508C
• 3512
• 3512C
• 3512B
• 3516 Series

Marine Applications

• 3512C Marine Engines
• 3516B Marine Engines

Petroleum & Power Applications

• Caterpillar petroleum engines
• Industrial power systems

Compatibility should always be confirmed using the engine serial number (ESN), arrangement number, or Caterpillar parts documentation before ordering.

Additional Compatibility Information

Because air starting tubes are part of a specific engine starting configuration, correct installation requires matching the tube routing, fittings, and engine arrangement. Using the correct OEM tube helps maintain proper air pressure delivery and prevents starting system failures.

Benefits

Installing a genuine CAT 5N-8059 Air Starting Valve Lines Tube helps:

• Maintain reliable engine starting performance
• Ensure proper compressed air flow
• Reduce the risk of air leaks
• Improve starting system durability
• Support efficient maintenance procedures
• Maintain OEM fit and Caterpillar reliability standards