1242704 Piston & Ring for DAF Air Brake Compressors

What does a compressor piston and ring do?

The compressor piston and ring assembly is a critical component within the pneumatic air brake system, responsible for maintaining the compression required for braking force. These high-strength components are manufactured to withstand extreme thermal and mechanical stress during continuous operation in heavy commercial vehicle applications.

Vehicle compatibility and engine fitment

This specific set is compatible with DAF XF 95, CF 85, and 85 CF series models, including various engine configurations like the FTS 95 XF 430 and FAT 85 CF 430. It ensures precise fitment for heavy-duty air compressors used in these vehicle lines. Check the compatibility list.

Installation and maintenance guidance

For proper installation, technicians should verify that the piston diameter matches the cylinder bore exactly and check that ring groove clearances align with the vehicle manufacturer's service manual. It is recommended to replace the entire set during a compressor overhaul to ensure a complete seal.

Service requirements

Maintaining correct end-gap clearances is essential to prevent blow-by and ensure long-term service life in demanding transport environments.

OE cross-reference

7000 753 100 (Compressor Piston & Ring) is the equivalent of the DAF OE number. This part directly replaces DAF OE number 1242704.