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A4571305515 SP1 Mercedes-Benz Twin Cylinder Air Compressor

1100 255 021

Summary

This water-cooled twin cylinder compressor for Mercedes-Benz features a Ø85.00 mm cylinder bore and 56 mm stroke. It provides high-capacity air production for heavy commercial vehicle braking systems, utilizing high-strength components and an M26x1,5 port configuration to ensure reliable pneumatic performance. Equivalent to OE Mercedes-Benz A4571305515SP1.

Product identifiers
EAN Code8699031064864
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Compatible OEM Codes

  • WABCO
    • 912 510 201 0 SP1
    • 912 510 105 0 SP1
  • MERCEDES BENZ
    • 457 130 72 15 SP1
    • 457 130 55 15 SP1

Description

What does a twin cylinder compressor do?

This twin cylinder compressor serves as a critical engine-driven component within the air brake system of heavy commercial vehicles. By utilizing two piston-cylinder assemblies, it delivers a higher air output compared to single-cylinder units, ensuring rapid reservoir filling. Built with high-strength components, this unit is designed to withstand demanding operating conditions in heavy-duty braking cycles.

Technical specifications and fitment

This specific model is designed for Mercedes-Benz applications. It features a water-cooled design with a Ø85.00 mm cylinder bore and a 56 mm stroke to maintain optimal thermal stability during operation. The unit includes an M26x1,5 air inlet and outlet port, alongside an M12x1,5 unloader port, ensuring precise integration into the vehicle's pneumatic circuit.

Installation and maintenance guidance

Technicians should verify the mounting interface and port sizes during installation to ensure correct fitment. Regular inspection of the water inlet and outlet ports (M16x1,5) is recommended to prevent cooling obstructions. Maintaining the integrity of the water-cooled valve plate is essential for consistent pressure delivery and system longevity.

System reliability

Consult your authorized distributor for compatibility confirmation.

OE cross-reference

1100 255 021 (Twin Cylinder Compressor) is the equivalent of the Mercedes-Benz OE number. This part directly replaces Mercedes-Benz OE number A4571305515SP1.

Technical Specifications

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

  • A4571307215SP1
  • A4571307215 SP1
  • A4571305515SP1
  • A4571305515 SP1
  • 4571307215 SP1
  • 4571305515 SP1
  • 457.130.7215 SP1
  • 457.130.72.15 SP1
  • 457.130.5515 SP1
  • 457.130.55.15 SP1
  • 457 130 7215 SP1
  • 457 130 5515 SP1
  • 457 130 72 15 SP1
  • 457 130 55 15 SP1

WABCO

  • 9125102010SP1
  • 9125102010 SP1
  • 9125101050SP1
  • 9125101050 SP1
  • 912.510.201.0 SP1
  • 912.510.105.0 SP1
  • 912 510 201 0 SP1
  • 912 510 105 0 SP1

Related Products

Compatible Vehicles

Compatible Vehicles
BrandModelModel TypeEngine
MERCEDES BENZ
WABCO

FAQ

What is the primary function of this twin cylinder compressor?
It is an engine-driven unit that generates compressed air for the brake system, providing higher output than single-cylinder models to fill reservoirs faster.
What are the key technical dimensions of this unit?
The compressor features a Ø85.00 mm cylinder bore, a 56 mm stroke, and utilizes M26x1,5 ports for air inlet and outlet.
Is this compressor suitable for Mercedes-Benz vehicles?
Yes, this unit is specifically designed to be compatible with Mercedes-Benz heavy commercial vehicle braking systems.
How does the cooling system work on this model?
This is a water-cooled unit featuring M16x1,5 water inlet and outlet ports to ensure stable operating temperatures during use.
What are the OE reference numbers of this part?
1100 255 021 directly replaces Mercedes-Benz OE number A4571305515SP1.