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8112851 VOLVO Twin Cylinder, Air Compressor

1300 050 005

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 Code	8699031049793

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Description

This twin cylinder air compressor is engineered to provide reliable air compression for heavy commercial vehicle braking systems. The component features a robust construction designed for high-stress environments, ensuring consistent pneumatic pressure through its optimized cylinder bore and stroke dimensions.

8112851 is the OE-equivalent of the VOLVO 8112851 twin cylinder air compressor used in VOLVO heavy commercial vehicles. This unit is specifically designed to meet the rigorous demands of professional-grade braking systems, maintaining structural integrity under varying thermal conditions through its water-cooled architecture.

For workshop technicians and fleet managers, this part offers seamless installation with precision-engineered ports, including a Ø29 air inlet and M26x1,5 outlet. The integration of the ESS feature and water-cooled valve plate ensures thermal stability during extended operation. Regular maintenance and checking of the water inlet/outlet ports (M16x1,5) are recommended to ensure optimal cooling efficiency and long-term performance within the air brake system.

Technical Specifications

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	OK
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	OK
Water Cooled Valve Plate	OK

Other OEMs

KNORR-BREMSE

VOLVO

Vehicles Used

Brand	Model	Engine
KNORR-BREMSE
VOLVO

FAQ

What are the primary technical specifications for the 8112851 model?

The unit features a Ø88.00 cylinder bore, 50 mm stroke, and 608cm³ swept volume. It includes an M26x1,5 air outlet port and is water-cooled for durability.

Which vehicle brands is this air compressor compatible with?

This specific part is designed to be compatible with VOLVO heavy commercial vehicle systems, specifically matching the 8112851 OE standard.

Does this component feature water cooling for better thermal regulation?

Yes, the 8112851 model is a water-cooled (W) unit featuring a water-cooled valve plate and specific M16x1,5 inlet/outlet ports for thermal stability.

Is this part suitable for professional heavy commercial vehicle workshops?

Absolutely. The part is engineered with high-strength components and precise port sizing (Ø29 inlet/M22x1,5 unloader) for professional assembly in heavy-duty braking systems.

Can I use this as an OE replacement for VOLVO systems?

Yes, the 8112851 is the direct OE-equivalent for the VOLVO 8112851 twin cylinder air compressor used in heavy commercial vehicles.