II31730 KNORR-BREMSE Twin Cylinder Air Compressor
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II31730 KNORR-BREMSE Twin Cylinder Air Compressor

1300 050 007

Summary

The II31730 is a high-precision Twin Cylinder Air Compressor designed for heavy commercial vehicles. Featuring a Ø88.00 mm Cylinder Bore and 50 mm Stroke, this water-cooled component ensures reliable air production. Technical specs: 2 Cylinders, 608cm³ Swept Volume, Ø29 Air Inlet Port, M26x1,5 Air Outlet Port, and M22x1,5 Air Unloader Port. Optimized for KNORR-BREMSE compatible systems.

EAN Code8699031066110
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Compatible OEM Codes

  • KNORR-BREMSE LP4955 II31730X00 II31730RP II31730AT II31730

Description

This twin cylinder air compressor is engineered to provide consistent air pressure within the pneumatic systems of heavy commercial vehicles. Designed with a robust structure, it serves as a critical component for maintaining optimal braking performance and system reliability. The unit features a dual-cylinder configuration with a water-cooling system to manage thermal loads during high-demand operation.

II31730 is the OE-equivalent of the KNORR-BREMSE II31730RP twin cylinder air compressor used in heavy commercial vehicle braking systems. This component is specifically engineered to meet the strict technical requirements of KNORR-BREMSE hardware, ensuring seamless integration and high-duty performance within the pneumatic circuit.

For workshop technicians, this compressor features a Ø88.00 mm cylinder bore and a 50 mm stroke, providing a swept volume of 608cm³. The installation involves a water-cooled setup with M16x1,5 inlet/outlet ports and an M22x1,5 air unloader port. Regular inspection of the water cooling lines and the M26x1,5 air outlet connection is recommended to ensure long-term serviceability and prevent system pressure drops.

Technical Specifications

Cylinder BoreØ88.00
Stroke50 mm
Swept Volume608cm³
Air Inlet PortØ29
Air Outlet PortM26x1,5
Number of Cylinders2
Through DriveOK
Air Unloader PortM22x1,5
Water (W) or Air (A) CooledW
Water Inlet PortM16x1,5
Water Outlet PortM16x1,5
With ESS FeatureOK
Water Cooled Valve PlateOK

Other OEMs

KNORR-BREMSE

  • LP4955
  • II31730X00
  • II31730RP
  • II31730AT
  • II31730

Related Products

Repair Kits

Vehicles Used

BrandModelEngine
KNORR-BREMSE

FAQ

What is the primary application of the II31730 air compressor?
The II31730 is a twin cylinder air compressor designed for heavy commercial vehicle pneumatic braking systems, specifically compatible with KNORR-BREMSE hardware.
Which OEM numbers are compatible with this product?
This product is the direct OE equivalent for the KNORR-BREMSE II31730RP technical standard.
Does this air compressor require water cooling?
Yes, this is a water-cooled (W) unit featuring M16x1,5 water inlet and outlet ports to ensure stable operation under heavy duty cycles.
What are the key technical dimensions of the cylinders?
The unit features a Cylinder Bore of Ø88.00 mm and a Stroke of 50 mm, resulting in a total swept volume of 608cm³.
Is this part suitable for heavy commercial vehicles?
Yes, it is designed strictly for heavy commercial vehicle applications such as trucks and buses requiring high-strength pneumatic components.