21521355 VOLVO Twin Cylinder, Air Compressor
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21521355 VOLVO Twin Cylinder, Air Compressor

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Summary

The 21521355 Twin Cylinder, Air Compressor is a high-strength component designed for heavy commercial vehicles. Key specifications include a Ø85.00 Cylinder Bore, 56 mm Stroke, and 636cm³ Swept Volume. This water-cooled unit features an M26x1,5 Air Outlet Port and an M12x1,5 Air Unloader Port, ensuring reliable air supply for VOLVO systems.

EAN Code8699031060194
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Compatible OEM Codes

  • WABCO 912 512 017 0
  • VOLVO 21521355

Description

The technical function of this air compressor is to provide consistent pneumatic pressure within the vehicle's braking and suspension systems. Engineered with high-strength components, this twin cylinder unit is designed to withstand the rigorous demands of heavy-duty operation in the heavy commercial vehicle sector.

21521355 is the OE-equivalent VOLVO air compressor used in VOLVO heavy commercial vehicles. This part serves as a precise replacement for the VOLVO 21521355 model, maintaining exact dimensional compatibility and system-wide integration.

For the workshop technician, this unit features a water-cooling system with M16x1,5 inlet and outlet ports to ensure optimal thermal management. The assembly includes an ESS feature and a water-cooled valve plate to maintain efficiency during long-haul operations. Proper installation should account for the Ø35 Air Inlet Port and the M26x1,5 Outlet Port requirements.

Regular maintenance of the air delivery system is essential for preventing downtime. Technicians should monitor the water cooling interface and the M12x1,5 unloader port to ensure the compressor operates within specified parameters during service intervals.

Technical Specifications

Cylinder BoreØ85.00
Stroke56 mm
Swept Volume636cm³
Air Inlet PortØ35
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
Weight22,7 KG

Other OEMs

VOLVO

  • 21521355

WABCO

  • 9125120170
  • 912.512.017.0
  • 912 512 017 0

Related Products

Repair Kits

Vehicles Used

BrandModelEngine
VOLVO
WABCO

FAQ

What is the primary application of the 21521355 air compressor?
The 21521355 is a twin cylinder air compressor designed specifically for VOLVO heavy commercial vehicles to ensure reliable pneumatic system pressure.
Which OEM numbers is this part compatible with?
This product is a direct replacement for the VOLVO 21521354 OEM code, ensuring perfect fitment in compatible systems.
Does this unit require water cooling?
Yes, this model is a water-cooled (W) component featuring M16x1,5 water inlet and outlet ports for efficient thermal regulation.
What are the key technical dimensions of the cylinders?
The unit features a Ø85.00 mm cylinder bore and a 56 mm stroke, providing a total swept volume of 636cm³.
Is this part suitable for heavy-duty truck applications?
Yes, it is engineered with high-strength components specifically for use in heavy commercial vehicle systems like those found in trucks and buses.