1100 250 021 (without gear) Twin Cylinder, Air Compressor
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1100 250 021 MERCEDES BENZ (without gear) Twin Cylinder, Air Compressor

1100 250 021

Summary

●Cylinder Bore: Ø85.00 ●Stroke: 56 mm ●Swept Volume: 636cm³ ●Number of Cylinders: 2 ●Air Inlet Port: M26x1,5 ●Air Outlet Port: M26x1,5 ●Air Unloader Port: M12x1,5 ●Water Cooled: W ●Water Inlet/Outlet Port: M16x1,5 ●With ESS Feature: OK

EAN Code8699031064840
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Compatible OEM Codes

  • MERCEDES BENZ 457 130 70 15 SP1 457 130 48 15 SP1 457 130 36 15 SP1
  • WABCO 912 510 103 0 SP1 912 510 100 0 SP1

Description

This high-strength twin cylinder air compressor is engineered to provide reliable pneumatic pressure for heavy commercial vehicle braking systems. Designed with a water-cooled architecture and a robust two-cylinder configuration, it ensures consistent performance under demanding operational conditions. The component features an optimized cylinder bore of Ø85.00 and a stroke of 56 mm to maintain optimal air volume delivery.

The 1100 250 021 is the OE equivalent of the MERCEDES BENZ 4571303615SP1, 4571304815SP1, 4571307015SP1 and WABCO 9125101000SP1, 9125101030SP1 models used in compatible heavy-duty systems. This part is specifically designed to meet the technical requirements of MERCEDES BENZ and WABCO hardware. It provides a reliable solution for maintaining the integrity of the pneumatic circuit in heavy commercial vehicles.

Installation and maintenance should be performed by qualified workshop technicians to ensure precise alignment of the M26x1,5 ports and proper water cooling flow. Regular inspection of the air unloader port and connections is recommended to prevent system pressure drops. This unit is built with high-strength components to withstand continuous duty cycles within the braking system architecture.

Technical Specifications

Cylinder BoreØ85.00
Stroke56 mm
Swept Volume636cm³
Air Inlet PortM26x1,5
Air Outlet PortM26x1,5
Number of Cylinders2
Through DriveOK
Air Unloader PortM12x1,5
Water (W) or Air (A) CooledW
Water Inlet PortM16x1,5
Water Outlet PortM16x1,5
With ESS FeatureOK
Water Cooled Valve PlateOK

Other OEMs

MERCEDES BENZ

  • A4571307015SP1
  • A4571307015 SP1
  • A4571304815SP1
  • A4571304815 SP1
  • A4571303615SP1
  • A4571303615 SP1
  • 4571307015 SP1
  • 4571304815 SP1
  • 4571303615 SP1
  • 457.130.7015 SP1
  • 457.130.70.15 SP1
  • 457.130.4815 SP1
  • 457.130.48.15 SP1
  • 457.130.3615 SP1
  • 457.130.36.15 SP1
  • 457 130 7015 SP1
  • 457 130 4815 SP1
  • 457 130 3615 SP1
  • 457 130 70 15 SP1
  • 457 130 48 15 SP1
  • 457 130 36 15 SP1

WABCO

  • 9125101030SP1
  • 9125101030 SP1
  • 9125101000SP1
  • 9125101000 SP1
  • 912.510.103.0 SP1
  • 912.510.100.0 SP1
  • 912 510 103 0 SP1
  • 912 510 100 0 SP1

Related Products

Repair Kits

Vehicles Used

BrandModelModel TypeEngine
MERCEDES BENZ
WABCO

FAQ

What are the compatible OEM reference numbers for this unit?
The compatible OEM numbers are MERCEDES BENZ 4571303615SP1, 4571304815SP1, 4571307015SP1 and WABCO 9125101000SP1, 9125101030SP1.
Is this air compressor suitable for water-cooled systems?
Yes, this twin cylinder model is designed specifically as a water-cooled (W) component with M26x way ports and M16x internal water ports.
What are the main technical specifications of this compressor?
The unit features a Ø85.00 cylinder bore, a 56 mm stroke, and a total swept volume of 636cm³ for efficient pneumatic delivery.
Which vehicle systems does this part support?
This part is designed for compatibility with MERCEDES BENZ and WABCO heavy commercial vehicle braking systems.
Does this component include an ESS feature?
Yes, this specific model is equipped with the ESS feature to ensure stable operation within the pneumatic system.