Description
Overview:
The Braided Leak Off Pipe is a flexible, small-bore fuel hose for low-pressure return and transfer duties on diesel and petrol systems. It features a 3.2 mm inward diameter and a 5 metre length, with a tough black cotton overbraid over a fuel-resistant inner tube for durability and clean routing. Built to DIN SPEC 73379 Type B 1983, it is suitable for use with diesel, petrol, and oil in automotive, plant, agricultural, and garden machinery. Typical uses include injector leak-off/return lines, spill rails, and general-purpose fuel return on compact engines and equipment where a neat, abrasion-resistant hose is required. Working pressure is 150 PSI (10 bar). Manufacturer Part Number (MPN): 200 437.
Key Features:
- 3.2 mm inward diameter for injector leak-off and other small-bore fuel return connections
- 5 m length for multiple runs or a complete refit; cut to size as needed
- Cotton overbraided outer for abrasion resistance and tidy routing in tight engine bays
- Compatible with diesel, petrol, and oil for versatile use across mixed fleets
- Manufactured to DIN SPEC 73379 Type B 1983 for consistent quality and fuel resistance
- Rated to 150 PSI (10 bar) for dependable performance on low-pressure return circuits
- Flexible construction makes fitting over barbed tails straightforward; secure with suitable clamps
- Smooth internal bore helps maintain steady flow and a reliable seal at connections
- Robust build resists kinking and chafing against engine components
- MPN 200 437 for easy identification and reordering
Typical Applications:
Commonly used as an injector leak-off/return hose on diesel engines, spill rail connections on mechanical and common-rail systems, and general fuel return on small plant, generators, mowers, compact tractors, and light construction equipment. Also suitable for oil return and breather lines where a small, abrasion-resistant hose is preferred. Ideal for maintenance, repairs, and custom routing where a 3.2 mm ID hose is specified.
Also known as:
Return fuel hose, injector spill line, spill rail hose, flexible fuel return line, injector leak-off tube, micro-bore fuel hose, small ID fuel return pipe, textile-braided fuel hose, cotton-braided return line.
Product Specifications
| L&S Part No. | 200 437 |
|---|---|
| Unit of Sale | 1 |
| Key Features | - 3.2 mm inward diameter for small-bore fuel return connections - 5 m length allows cutting to required size - Cotton overbraid provides abrasion resistance - Compatible with diesel, petrol, and oil - Rated to 150 PSI for low-pressure circuits |


