20774383 SP1 VOLVO (7600 850 006, 8131848, 7408131848 with gear)

The technical functionality of this Twin Cylinder Air Compressor is centered around providing consistent pneumatic pressure for heavy commercial vehicle braking systems. Engineered with high-strength components, the unit features a Ø85.00 cylinder bore and a 56 mm stroke to maintain optimal swept volume. This water-cooled assembly is designed to handle rigorous thermal demands during long-haul operations, ensuring stable performance under heavy-duty load conditions.

20774383 SP1 is the OE-equivalent of the VOLVO 20774383 SP1 used in VOLVO heavy commercial vehicles. This component is perfectly compatible with several reference numbers including 7600 850 006, 8131848, and 7408131848 (with gear). By adhering to strict engineering standards, it ensures seamless integration into the existing pneumatic architecture of the vehicle.

For workshop technicians, the installation process requires attention to the specific port configurations: a Ø35 Air Inlet Port and an M26x1,5 Air Outlet Port. The unit also utilizes M16x1,5 ports for water inlet and outlet to facilitate efficient cooling. Regular inspections of the water-cooled valve plate and connection seals are recommended during routine heavy commercial vehicle maintenance to prevent pressure drops or system leaks.

This part is specifically engineered for systems requiring a through-drive mechanism and features an integrated ESS capability. Maintaining the integrity of the air unloader port (M16x1,5) is essential for correct system regulation and long-term reliability within the air brake compressor assembly.