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20478151 SP1 Volvo B9L D9B Twin Cylinder Compressor

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20478151 SP1 Compatible Twin Cylinder Compressor for Volvo B9L

1300 180 002

Summary

This water-cooled twin cylinder compressor is engineered for Volvo B9L trucks with D9B engines. It features an 85.00 mm cylinder bore, a 62 mm stroke, and a 704cm³ swept volume to ensure reliable air pressure delivery in heavy-duty service. Equivalent to OE Volvo 20478151SP1.

Product identifiers
EAN Code8699031050089
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Compatible OEM Codes

  • VOLVO
    • 85000614 SP1
    • 85000487 SP1
    • 85000360 SP1
    • 21388369 SP1
    • 20842990 SP1
    • 20773343 SP1
    • 20569928 SP1
    • 20478151 SP1
    • 20382345 SP1
  • WABCO
    • 412 704 024 0 SP1
    • 412 704 014 7 SP1
    • 412 704 014 0 SP1
    • 412 704 010 7 SP1
    • 412 704 010 0 SP1
    • 412 704 006 7 SP1
    • 412 704 006 0 SP1

Description

What does a twin cylinder compressor do?

This twin cylinder compressor is a vital component of the air brake system, designed to provide consistent high-pressure air for braking and pneumatic functions. Built with heavy-duty grade materials, this unit ensures thermal stability through its integrated water-cooling design, making it suitable for sustained high-demand operating conditions.

Vehicle and engine compatibility

This specific model is designed for Volvo B9L vehicles equipped with D9B engines. The unit features a through drive configuration and is compatible with the high-pressure requirements of heavy commercial vehicle systems. It is essential to verify that the mounting flange and port locations match the existing installation before replacement.

Installation and maintenance

For optimal performance, technicians should inspect the water inlet and outlet ports (M16x1,5) for any signs of scale or blockage. Given the water-cooled valve plate design, ensuring proper coolant flow is critical to prevent overheating. Regular checks of the air inlet (Ø35) and outlet (M26x1,5) connections are recommended to maintain system integrity.

Selection guidance

Consult your authorized distributor to ensure exact fitment for your specific engine variant.

OE cross-reference

1300 180 002 (Twin Cylinder Compressor) is the equivalent of the Volvo OE number. This part directly replaces Volvo OE number 20478151SP1.

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 PortM16x1,5
Water (W) or Air (A) CooledW
Water Inlet PortM16x1,5
Water Outlet PortM16x1,5
With ESS FeatureOK
Water Cooled Valve PlateOK

Other OEMs

VOLVO

  • 85000614 SP1
  • 85000487 SP1
  • 85000360 SP1
  • 21388369 SP1
  • 20842990 SP1
  • 20773343 SP1
  • 20569928 SP1
  • 20478151 SP1
  • 20382345 SP1

WABCO

  • 4127040240SP1
  • 4127040147SP1
  • 4127040140SP1
  • 4127040140 SP1
  • 4127040107SP1
  • 4127040100SP1
  • 4127040067SP1
  • 4127040060SP1
  • 412.704.014.0 SP1
  • 412 704 024 0 SP1
  • 412 704 014 7 SP1
  • 412 704 014 0 SP1
  • 412 704 010 7 SP1
  • 412 704 010 0 SP1
  • 412 704 006 7 SP1
  • 412 704 006 0 SP1

Related Products

Repair Kits

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 this twin cylinder compressor be used in a single cylinder system?
No, replacement should only be made if the vehicle manufacturer specifies a twin-cylinder variant for that specific engine. Always match parts against the removed unit's identification.
What type of cooling does this compressor use?
This unit is a water-cooled model, utilizing an integrated cooling circuit to maintain thermal stability during heavy-duty operation.
How can I verify the correct fitment for my Volvo truck?
Check the cylinder diameter, cooling type, and port sizes (such as the M26x1,5 outlet) against your removed unit to ensure exact compatibility.
What are the key technical specifications of this unit?
This compressor features an 85.00 mm cylinder bore, a 62 mm stroke, and a total swept volume of 704cm³.
What are the OE reference numbers of this part?
1300 180 002 directly replaces Volvo OE number 20478151SP1.