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20478166 SP1 Compatible Air Compressor for Volvo NH12

1300 025 003

Summary

This water-cooled single cylinder air compressor is designed for Volvo NH12 trucks with D12C engines. It features an Ø85.00 mm cylinder bore, 62 mm stroke, and an M26x1,5 air outlet port to ensure reliable pneumatic system performance in heavy commercial vehicle applications. Equivalent to OE Volvo 20478166SP1.

Product identifiers
EAN Code8699031049502
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Compatible OEM Codes

  • VOLVO
    • 85000116 SP1
    • 21353457 SP1
    • 20478166 SP1
    • 20382346 SP1
  • WABCO
    • 412 352 029 0 SP1
    • 412 352 004 0 SP1

Description

What does an air compressor do?

This single cylinder air compressor serves as a critical component within the pneumatic braking system of heavy commercial vehicles. Engineered with heavy-duty grade materials, it provides consistent air pressure required for reliable braking and auxiliary pneumatic functions. The unit is designed to withstand rigorous operating conditions while maintaining high volumetric efficiency.

Vehicle and engine compatibility

This specific model is compatible with Volvo NH12 trucks equipped with D12C engines. It features a water-cooled design with a water-cooled valve plate to manage thermal loads effectively during continuous operation. The assembly includes an ESS feature and a gear drive configuration to match original engine requirements.

Installation and maintenance guidance

Technicians should verify the technical specifications before installation, specifically the M26x1,5 air outlet port and the M16x1,5 water inlet/outlet ports. Proper alignment of the gear drive and ensuring correct coolant flow through the water jacket is essential for preventing premature wear. Check the compatibility list to confirm exact fitment for your vehicle's chassis number.

Performance and reliability

To ensure optimal performance, regular inspection of the air inlet port and unloader valve connections is recommended during routine maintenance intervals.

OE cross-reference

1300 025 003 (Single Cylinder Compressor) is the equivalent of the Volvo OE number. This part directly replaces Volvo OE number 20478166SP1.

Technical Specifications

Technical Specifications
Cylinder BoreØ85.00
Stroke62 mm
Swept Volume352cm³
Air Inlet PortØ35
Air Outlet PortM26x1,5
Number of Cylinders1
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
Weight18,5 KG

Other OEMs

VOLVO

  • 85000116 SP1
  • 21353457 SP1
  • 20478166 SP1
  • 20382346 SP1

WABCO

  • 4123520290SP1
  • 4123520290 SP1
  • 4123520040SP1
  • 4123520040 SP1
  • 412.352.029.0 SP1
  • 412.352.004.0 SP1
  • 412 352 029 0 SP1
  • 412 352 004 0 SP1

Related Products

Compatible Vehicles

Compatible Vehicles
BrandModelModel TypeEngine
RENAULT TRUCKS Magnum DXi12
VOLVO
VOLVO FH12 D12C
VOLVO FH12 D12D
VOLVO FH16 D16C
VOLVO FM10 D10A
VOLVO FM12 D12C
VOLVO FM12 D12D
VOLVO NH12 D12C
VOLVO VHD D12
VOLVO VNL D12
WABCO

FAQ

How do I ensure this compressor fits my Volvo truck?
The best way to verify fitment is to match the original part number from your vehicle's chassis against our compatibility list, ensuring the cooling type and drive type match.
Is this an air-cooled or water-cooled compressor?
This model is a water-cooled unit featuring M16x1,5 water inlet and outlet ports to maintain stable operating temperatures.
What are the key technical dimensions of this unit?
This compressor features an Ø85.00 mm cylinder bore, a 62 mm stroke, and a swept volume of 352cm³, providing reliable pneumatic output.
What should I check regarding the drive type?
It is vital to confirm that the gear drive configuration matches your engine's requirements to ensure proper mechanical synchronization.
What are the OE reference numbers of this part?
1300 025 003 directly replaces Volvo OE number 20478166SP1.