Cohline 2637.1300 Oil and Vacuum Breather Hose 13mm

The Cohline 2637.1300 is a professional-grade oil and vacuum breather hose designed for automotive fluid handling applications. This Type 2637 hose features a durable three-layer construction with an NBR (Nitrile Butadiene Rubber) inner tube, steel wire braid reinforcement, and CR (Chloroprene Rubber) outer cover for superior strength and chemical resistance.

Technical Specifications:

• DN (Nominal Size): 13mm
• Inner Diameter: 15.0mm (±0.3mm)
• Outer Diameter: 22.5mm (±0.6mm)
• Working Pressure: 25 bar (363 PSI)
• Test Pressure: 40 bar (580 PSI)
• Burst Pressure: 90 bar (1,305 PSI)
• Minimum Bend Radius: 80mm (3.15 inches)
• Temperature Range: -40°C to +100°C (-40°F to +212°F), short term to +120°C (+248°F)

Applications and Compatibility:

• Mineral hydraulic fluids (HL, HLP, HVLP oils per DIN 51524)
• Engine oils and ATF (Automatic Transmission Fluid)
• Glycol-water emulsions and silicone oils
• Biodegradable hydraulic fluids on vegetable oil base
• Crankcase breather systems and oil vapor ventilation

This hose replaces obsolete Cohline 2620.1300 and is commonly used in European automotive applications including BMW, Mercedes-Benz, Porsche, Audi, and Volkswagen vehicles. The steel braid reinforcement provides excellent pressure resistance while maintaining flexibility for tight engine bay routing. Typically sold by the meter and supplied in 20-meter coils from the manufacturer.