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LK4921 SP1 KNORR-BREMSE Twin Cylinder, Air Compressor

1300 090 010

Summary

●Cylinder Bore: Ø88.00 ●Stroke: 50 mm ●Swept Volume: 608cm³ ●Air Inlet Port: Ø29 ●Air Outlet Port: M26x1,5 ●Number of Cylinders: 2 ●Through Drive: ✓ ●Air Unloader Port: M22x1,5 ●Water (W) or Air (A) Cooled: W ●Water Inlet Port: M16x1,5 ●Water Outlet Port: M16x1,5 ●With ESS Feature: ✓ ●Water Cooled Valve Plate: ✓

EAN Code8699031049960
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Compatible OEM Codes

  • VOLVO 8113634 SP1 70330094 SP1
  • KNORR-BREMSE LK4921 SP1

Description

This high-strength twin cylinder air compressor is engineered to provide consistent air pressure within the pneumatic system of heavy commercial vehicles. Designed for durability in demanding environments, the component features a robust construction to ensure reliable operation under high-load cycles.

LK4921 SP1 is the OE-equivalent of the KNORR-BREMSE LK4921 SP1 Twin Cylinder, Air Compressor used in KNORR-BREMSE systems. This product features a cylinder bore of Ø88.00 and a stroke of 50 mm, providing a swept volume of 608cm³. It is specifically designed for compatibility with the designated KNORR-BREMSE technical specifications and hardware requirements.

For workshop technicians, this unit offers ease of assembly thanks to its precise port configurations, including an M26x1,5 air outlet and M22x1,5 unloader port. The water-cooled design and integrated ESS feature ensure optimal thermal management during operation. Regular inspection of the water inlet and outlet ports (M16x1,5) is recommended during routine maintenance to ensure peak system performance.

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

Other OEMs

KNORR-BREMSE

  • LK4921 SP1

VOLVO

  • 8113634 SP1
  • 70330094 SP1

Related Products

Vehicles Used

BrandModelEngine
KNORR-BREMSE
VOLVO

FAQ

What are the compatible OEM part numbers for this compressor?
This unit is compatible with the following codes: LK4921 SP1, 7600 750 002, 470775, and 478777 with gear.
Is this air compressor suitable for water-cooled systems?
Yes, this twin cylinder air compressor is designed for water-cooled (W) applications with M16x1,5 inlet and outlet ports.
Does this component feature an ESS system?
Yes, this product includes the ESS feature and is equipped with a water-cooled valve plate for enhanced durability.
What is the technical bore and stroke specification?
The technical specifications include a cylinder bore of Ø88.00 and a stroke of 50 mm.
Which system maker is this part compatible with?
This part is engineered to be compatible with KNORR-BREMSE systems and technical standards.