Description
Overview:
The Heater Hose 19 mm (3/4") x 1 m is a flexible, black rubber hose designed for engine heating and cooling circuits across cars, vans, plant machinery, and garden equipment. Made from coolant‐resistant rubber, it provides dependable performance with water/antifreeze mixtures and handles temperatures from -40°C to 100°C. With a 19 mm internal diameter (3/4"), it suits common heater matrix, radiator bypass, and header tank connections, helping maintain reliable coolant flow and efficient heat exchange. Supplied as a straight 1 metre length, it can be cut to size for custom routing during repairs or new installs. Suitable for use in radiators, heater circuits, and coolant lines serving intercoolers where specified by the system design. Identified by MPN 605 074.
Key Features:
- Internal diameter: 19 mm (3/4") for common heater and radiator connections
- Length: 1 metre straight section for easy routing and trimming
- Temperature range: -40°C to 100°C for year‐round use
- Coolant‐resistant rubber for long service life with typical antifreeze mixes
- Good flexibility to route around tight engine bays without kinking under normal bends
- Smooth internal bore for consistent coolant flow
- Black outer for a tidy OEM‐style appearance
- Cut‐to‐length convenience using a suitable hose cutter or sharp blade
- Compatible with standard 19 mm hose tails, barbs, and joiners
- Works with common hose clips including worm‐drive and spring clamps
- Suitable for radiators, heater matrices, auxiliary heaters, and charge‐cooler circuits (where designed for coolant)
- Supplied as a single 1 m piece to simplify stocking and maintenance
Typical Applications:
General coolant transfer in automotive and light commercial vehicles, replacement heater hoses to and from the heater matrix, radiator bypass and header tank links, auxiliary heater installations, and coolant plumbing on compact construction and garden machinery such as generators, compressors, mini excavators, ride‐on mowers, and compact tractors.
Also known as:
Heater matrix hose, engine coolant hose, 19 mm coolant hose, 3/4 inch water hose (19 mm), radiator link hose, engine heater pipe, bypass hose, coolant transfer hose, flexible rubber heater hose.
Product Specifications
| L&S Part No. | 605 074 |
|---|---|
| Unit of Sale | 1 |
| Key Features | - Internal diameter: 19 mm (3/4") for heater and radiator connections - Length: 1 metre, cut-to-length for custom routing - Temperature range: -40°C to 100°C for versatile use - Coolant-resistant rubber for durability with antifreeze - Compatible with standard 19 mm hose tails and clips |


