Central Tire Inflation System Parts: Sourcing and Solutions

[MikePhua]

Introduction
Central Tire Inflation Systems (CTIS) are integral to modern military and heavy-duty vehicles, offering enhanced mobility and tire longevity by allowing operators to adjust tire pressures on the move. These systems are particularly beneficial in off-road environments, such as construction sites, agricultural fields, and military operations, where varying terrain demands adaptable tire pressure. However, maintaining these systems requires access to specialized parts, which can sometimes be challenging to source.
Understanding CTIS Components
A typical CTIS comprises several key components:

• Control Box: The central unit that allows the operator to monitor and adjust tire pressures.
  
• Wheel Valves: Installed on each wheel, these valves control the air pressure within the tires.
  
• Air Lines and Hoses: Connect the control box to the wheel valves, facilitating the transfer of air.
  
• Quick Release Valves: Enable rapid deflation of tires when necessary.
  
• Air Dryer Filter Kits: Remove moisture from the air supply to prevent system corrosion and freezing.
  

Sourcing CTIS Parts
Finding replacement parts for CTIS can be challenging due to their specialized nature. However, several suppliers offer a range of components:

• Oshkosh Equipment: Specializes in military vehicle parts, including CTIS components for models like the M35A3 and M939A2 series. They offer items such as control boxes, wheel valves, and air dryer filter kits.
  
• Spicer Parts: Provides CTIS components designed for commercial off-highway vehicles. Their offerings include wheel valves, air lines, and quick release valves, emphasizing durability and performance.
  
• Eastern Surplus: Offers a variety of CTIS parts, including air hoses and wheel valve assemblies, catering to both military and commercial applications.
  
• RubberDuck4x4: Focuses on parts for military vehicles like the Hummer, providing CTIS kits and individual components tailored to specific models.
  

Considerations When Sourcing Parts
When sourcing CTIS parts, consider the following:

• Compatibility: Ensure that the parts are compatible with your vehicle's specific CTIS model.
  
• Quality: Opt for OEM (Original Equipment Manufacturer) parts or reputable aftermarket options to ensure reliability.
  
• Availability: Some parts may have limited availability, especially for older or specialized vehicles.
  
• Cost: Prices can vary significantly; it's advisable to compare suppliers to find the best value.
  

Conclusion
Maintaining a CTIS requires access to specialized parts, which can be sourced from various suppliers. By understanding the components of the system and considering factors like compatibility and quality, operators can ensure the longevity and reliability of their vehicles. Regular maintenance and timely replacement of worn parts are essential to keep the CTIS functioning optimally, thereby enhancing vehicle performance and reducing downtime.