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81125437 Compatible Twin Cylinder Compressor — Volvo

1300 050 004

Summary

This heavy-duty twin cylinder compressor is designed for Volvo FL12 trucks with TD122 engines. It features a Ø88.00 mm cylinder bore, 50 mm stroke, and a 608cm³ swept volume. This water-cooled unit ensures reliable air pressure delivery for heavy commercial vehicle braking systems. Equivalent to OE Volvo 81125437.

Product identifiers
EAN Code8699031049779
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Compatible OEM Codes

  • KNORR-BREMSE
    • LP4934
    • II30895X00
    • II30895
    • II15992ES
    • II15992C57
    • II15992AT000
    • II15992AT
    • II15992
  • VOLVO
    • 81125437
    • 8112543
    • 3037346

Description

What does a twin cylinder compressor do?

This twin cylinder compressor is a critical component of the air brake system, providing the necessary pneumatic pressure for heavy commercial vehicle braking and auxiliary functions. Built with high-strength components, it ensures consistent air supply even under demanding operating conditions in the transport sector.

Compatible vehicles and engines

This specific unit is engineered to fit Volvo FL12 trucks equipped with TD122 engines. The design incorporates a water-cooled valve plate and an integrated ESS feature to maintain optimal thermal management during operation. It is also compatible with various Volvo OE specifications to ensure exact fitment within the engine's pneumatic circuit.

Installation and maintenance

For professional installation, technicians should verify the M26x1,5 air outlet port and M16x1,5 water inlet/outlet ports. This through-drive model requires careful alignment with the engine drive gear to ensure efficient power transfer and long-term reliability.

Operational reliability

Maintaining proper coolant flow through the water ports is essential to prevent overheating of the cylinders.

OE cross-reference

1300 050 004 (Twin Cylinder Compressor) is the equivalent of the Volvo OE number. This part directly replaces Volvo OE number 81125437.

Technical Specifications

Technical Specifications
Cylinder BoreØ88.00
Stroke50 mm
Swept Volume608cm³
Air Inlet PortØ29
Air Outlet PortM26x1,5
Number of Cylinders2
Through DriveOK
Air Unloader PortM22x1,5
Water (W) or Air (A) CooledW
Water Inlet PortM16x1,5
Water Outlet PortM16x1,5
With ESS FeatureOK
Water Cooled Valve PlateOK
Weight21,4 KG

Other OEMs

KNORR-BREMSE

  • LP4934
  • II30895X00
  • II30895
  • II15992ES
  • II15992C57
  • II15992AT000
  • II15992AT
  • II15992

VOLVO

  • 81125437
  • 8112543
  • 3037346

Related Products

Compatible Vehicles

Compatible Vehicles
BrandModelModel TypeEngine
KNORR-BREMSE
VOLVO
VOLVO B10B D10A
VOLVO B10M D10A
VOLVO B12 D12A
VOLVO F10 TD102
VOLVO F12 TD122
VOLVO FH12 D12A
VOLVO FL10 D10A
VOLVO FL10 TD102
VOLVO FL10 TD103
VOLVO FL12 TD122
VOLVO FL12 TD123
VOLVO NH12 D12A
VOLVO NL10 D10A
VOLVO NL12 D12A

FAQ

What is the primary function of this twin cylinder compressor?
It provides pressurized air to the braking system and other pneumatic components within the heavy commercial vehicle's air circuit.
Is this compressor compatible with Volvo FL12 engines?
Yes, this unit is specifically designed for Volvo FL12 models utilizing the TD122 engine series.
How does the cooling system work on this unit?
This is a water-cooled model featuring a water-cooled valve plate to manage high temperatures during continuous operation.
What are the key technical dimensions?
The unit features a Ø88.00 mm cylinder bore, a 50 mm stroke, and a total swept volume of 608cm³.
What are the OE reference numbers of this part?
1300 050 004 directly replaces Volvo OE number 81125437.