Leak-off Pipe - Thwaites
Manufactured to OEM specifications, the leak off pipe is designed to withstand continuous exposure to diesel fuel, engine vibration, and varying operating temperatures.
Thwaites Leak Off Pipe - OEM Number: T14696
Part No.
HMP4312
The Thwaites Leak Off Pipe (OEM T14696) is a genuine replacement fuel return pipe designed for use on selected Thwaites site dumpers. It forms part of the engine's fuel system by returning surplus diesel fuel from the injectors back to the fuel tank, helping to maintain the correct fuel pressure and ensuring efficient operation of the injection system.
Manufactured to OEM specifications, the leak off pipe is designed to withstand continuous exposure to diesel fuel, engine vibration, and varying operating temperatures. Its precision construction provides a secure, leak-free connection, helping to maintain fuel system efficiency while reducing the risk of fuel loss and air entering the system.
FUNCTION AND OPERATION
- Returns excess fuel from the injectors to the fuel tank
- Maintains correct fuel pressure within the injection system
- Helps remove air from the fuel circuit
- Reduces unnecessary fuel wastage
- Supports smooth and efficient engine operation
- Designed for demanding construction and industrial applications
TECHNICAL DETAILS
- OEM Part Number: T14696
- Type: Fuel leak off pipe
- Function: Injector fuel return line
- Application: Diesel fuel injection systems
- Construction: Fuel-resistant pipe assembly with OEM-style end connections
- Design: OEM direct replacement component
TYPICAL APPLICATIONS
Suitable for selected Thwaites equipment, including:
- Thwaites site dumpers
- Selected Thwaites forward tip dumpers
- Selected Thwaites swivel dumpers
- Construction and industrial equipment fitted with compatible diesel engines
Always verify compatibility using the machine model, engine type, and serial number before ordering, as fuel return pipe configurations can vary between engine installations.
IMPORTANT INFORMATION
Always confirm the correct OEM part number, machine model, engine type, and serial number before ordering, as leak off pipes differ in length, routing, connection type, and diameter between fuel systems. Installing the correct pipe is essential to maintain proper fuel circulation and prevent leaks.
Common signs of a worn or damaged leak off pipe include diesel fuel leaks, fuel odours, difficulty starting, air entering the fuel system, or visible cracking and deterioration of the pipe. When replacing the leak off pipe, it is recommended to inspect the injector leak off connectors, fuel return hoses, clips, seals, and surrounding fuel lines for signs of wear or damage. Replacing any deteriorated components at the same time will help ensure reliable engine performance and minimise the risk of future fuel system issues.
| Pack quantity | 1 |
| Weight | 0.02 |
| OEM Number | T14696 |
| Manufacturer | Thwaites |
Available in category:
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*
£30.00 for delivery before 10:30am
£25.00 for delivery before 12:30pm
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For all other countries, please click here for full delivery information.
**Separate carriage charges apply to bulk products such as 205L barrels.
