Thwaites Hydraulic Tank Breather - OEM Number: T11238

The Thwaites Hydraulic Tank Breather (OEM T11238) is a genuine replacement breather cap designed for use on a range of Thwaites site dumpers and hydraulic-powered construction equipment. It forms an essential part of the hydraulic reservoir system, allowing air to enter and exit the hydraulic tank as fluid levels change during machine operation while helping to prevent the ingress of dirt, dust, and moisture.

Manufactured to OEM specifications, this breather is engineered to maintain correct reservoir pressure equalisation and hydraulic system cleanliness under demanding site conditions. By filtering incoming air, it helps protect hydraulic components from contamination and contributes to the long-term reliability and performance of the machine's hydraulic system.

FUNCTION AND OPERATION

• Allows hydraulic reservoir pressure equalisation
• Permits air movement as hydraulic fluid levels rise and fall
• Helps prevent vacuum formation within the hydraulic tank
• Filters incoming air to reduce contamination
• Protects hydraulic components from dust and debris ingress
• Supports reliable hydraulic system performance and longevity

TECHNICAL DETAILS

• OEM Part Number: T11238
• Type: Hydraulic tank breather / reservoir breather cap
• Function: Hydraulic reservoir ventilation and contamination control
• Application: Thwaites hydraulic systems and reservoirs
• Construction: Heavy-duty breather housing with integrated filtration element
• Design: OEM-configured breather for direct replacement installation
• Installation: Mounted on hydraulic oil reservoir or tank assembly

Hydraulic tank breathers of this type are commonly used on construction and industrial machinery to maintain atmospheric balance within hydraulic reservoirs while reducing the risk of contamination entering the system.

TYPICAL APPLICATIONS

Suitable for a range of Thwaites equipment, including:

• Thwaites 3 Tonne dumpers
• Thwaites 5 Tonne dumpers
• Thwaites 6 Tonne dumpers
• Thwaites 9 Tonne dumpers
• Thwaites Power Swivel dumpers
• Hydraulic oil reservoir and tank assemblies

Breather caps are widely used throughout hydraulic construction equipment where reservoir ventilation and contamination control are critical to system reliability.

IMPORTANT INFORMATION

Always confirm the correct OEM part number, machine model, and reservoir specification before ordering, as hydraulic tank breathers vary in thread size, airflow capacity, and filtration design between machine types and production ranges. A blocked, damaged, or missing breather can lead to pressure build-up, vacuum conditions within the tank, hydraulic oil leakage, contamination ingress, reduced hydraulic efficiency, and premature wear of pumps, valves, and other hydraulic components. During routine maintenance, the breather element should be inspected and replaced as required to maintain optimum hydraulic system protection and performance.

DELIVERY OPTIONS (UK mainland only)

Next Day Delivery*
£11.95 or FREE for orders over £150
Orders placed before 4pm Monday to Friday will be delivered on the next business day.
Orders placed after 4pm on Friday will be delivered the following Tuesday.
*Next day delivery applies to stocked items only. Availability can be found on the product pages.

Premium Delivery*
£27.50 for delivery before 10:30am
£20.00 for delivery before 12:30pm
*Premium delivery applies to stocked items only. Availability can be found on the product pages.

For all other countries, please click here for full delivery information.

**Separate carriage charges apply to bulk products such as 205L barrels.