Heat and ozone are the two enemies you cannot see. A hose that performs in a temperate market can age years ahead of schedule in Gulf traffic, where ambient air, road surface heat, and underhood temperatures stack together.
The JUNZE hydraulic brake hose assembly carries +120°C at the top of its rated window — a catalogue figure, printed here as it is tested. The rubber cover is formulated for ozone and weathering resistance, which is the layer that actually ages first in hot markets.
Three bores cover the market mix: 3.2mm for cars, 4.8mm for SUVs and MPVs, 6.3mm for pickups and light trucks.Product Details
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The full rating runs from -48°C to +120°C, so the same part number serves cold-storage yards and summer highway work without a seasonal swap. The fiber braid underneath carries the pressure load: 80 MPa burst minimum at 3.2mm, 60 MPa at 4.8mm, 50 MPa at 6.3mm.
What fails first in hot climates is not the pressure holding — it is the cover. Sunlight and ozone age exposed rubber into fine surface cracking. The resistant cover in this assembly targets exactly that failure mode.
Order as bulk hose or finished assemblies cut to your routing. For a distributor running mixed vehicle markets, tell us the fleet mix and we will quote the bore spread that covers it.
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