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20574763 SP1 Volvo NH12 D12C Twin Cylinder Compressor

1300 185 002

Summary

Designed for Volvo NH12 with D12C engines, this water-cooled twin cylinder compressor features an Ø85.00 mm cylinder bore and a 62 mm stroke. It provides high air output for heavy commercial vehicle air brake systems, ensuring reliable pressure delivery. Equivalent to OE Volvo 20574763SP1.

Product identifiers
EAN Code8699031050126
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Compatible OEM Codes

  • WABCO
    • 412 704 016 7 SP1
    • 412 704 016 0 SP1
    • 412 704 013 7 SP1
    • 412 704 013 0 SP1
    • 412 704 007 7 SP1
    • 412 704 007 0 SP1
    • 412 704 002 7 SP1
    • 412 704 002 0 SP1
  • VOLVO
    • 85000491 SP1
    • 70330056 SP1
    • 20866605 SP1
    • 20775224 SP1
    • 20574763 SP1

Description

This twin cylinder compressor is an essential component of the air brake system in heavy commercial vehicles, utilizing two piston-cylinder assemblies to generate compressed air. By providing two compression strokes per crankshaft revolution, it delivers a higher air volume than single-cylinder units, facilitating faster reservoir filling. This specific model is engineered with a water-cooled valve plate and includes the ESS feature to maintain system efficiency under heavy loads.

This unit is specifically fitted to Volvo NH12 trucks equipped with D12C engines. It ensures precise integration within the pneumatic system of the vehicle, maintaining the required pressure for braking and auxiliary functions. When replacing this component, it is vital to verify that the mounting flange and port locations match the existing installation.

Installation and maintenance should be performed by a workshop technician to ensure proper alignment of the through drive and secure connection of the M16x1,5 water ports. Regular checks of the air inlet port and outlet connections are recommended to prevent leaks in the pneumatic circuit and ensure consistent performance during operation.

Consult your authorized distributor.

OE cross-reference

1300 185 002 (Twin Cylinder Compressor) is the equivalent of the Volvo OE number. This part directly replaces Volvo OE number 20574763SP1.

Technical Specifications

Technical Specifications
Cylinder BoreØ85.00
Stroke62 mm
Swept Volume704cm³
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

Other OEMs

VOLVO

  • 85000491 SP1
  • 70330056 SP1
  • 20866605 SP1
  • 20775224 SP1
  • 20574763 SP1

WABCO

  • 4127040167SP1
  • 4127040160SP1
  • 4127040160 SP1
  • 4127040137SP1
  • 4127040130SP1
  • 4127040130 SP1
  • 4127040077SP1
  • 4127040070SP1
  • 4127040027SP1
  • 4127040020SP1
  • 412.704.016.0 SP1
  • 412.704.013.0 SP1
  • 412 704 016 7 SP1
  • 412 704 016 0 SP1
  • 412 704 013 7 SP1
  • 412 704 013 0 SP1
  • 412 704 007 7 SP1
  • 412 704 007 0 SP1
  • 412 704 002 7 SP1
  • 412 704 002 0 SP1

Related Products

Compatible Vehicles

Compatible Vehicles
BrandModelModel TypeEngine
RENAULT TRUCKS Magnum DXi12
VOLVO
VOLVO B9L D9B
VOLVO B9R D9B
VOLVO B9TL D9B
VOLVO FE D9B
VOLVO FH12 D12C
VOLVO FH12 D12D
VOLVO FH16 D16C
VOLVO FM10 D10A
VOLVO FM12 D12C
VOLVO FM12 D12D
VOLVO FM9 D9A
VOLVO FM9 D9B
VOLVO NH12 D12C
VOLVO TAD1140-1172VE D9
VOLVO VHD D12
VOLVO VNL D12
WABCO

FAQ

Can I install a twin cylinder compressor instead of a single cylinder one?
This is only possible if the vehicle manufacturer specifies a twin-cylinder variant for that engine. The drive gear, mounting flange, and port locations must match exactly.
How do I verify compatibility with my truck?
It is best to compare the removed unit's specifications, including cylinder diameter, cooling type, and flange hole pattern, against the new component.
What are the benefits of a twin cylinder design?
Twin cylinder compressors deliver higher air output per crankshaft revolution compared to single-cylinder types, allowing for faster filling of air reservoirs.
How is this compressor cooled?
This specific model is a water-cooled unit, utilizing M16x1,5 ports for water inlet and outlet to manage operating temperatures.
What are the OE reference numbers of this part?
1300 185 002 directly replaces Volvo OE number 20574763SP1.