A2-35 FK40 Bus AC Compressor Piston (FK390/470/560/655cc Displacement)

High-precision A2-35 compressor piston, compatible with FK40 series heavy-duty bus air conditioner compressors in FK390, FK470, FK560 and FK655cc displacements. Made of premium wear-resistant aluminum alloy with precision machining, ensures stable compression performance, ideal for professional compressor overhaul and performance restoration.

Availability:

Quantity:



Inquire Add to Basket

Model:
A2-35 (For FK40 Series, FK390/470/560/655cc)

Product Description

The A2-35 is a precision-engineered compressor piston designed for FK40 series heavy-duty bus air conditioner compressors, available for FK390, FK470, FK560 and FK655cc displacement specifications. As the core reciprocating component inside the compression chamber, it works with piston rings to form a sealed compression space, directly determining the refrigerant compression efficiency, cooling capacity and service life of the entire AC compressor.

Manufactured from high-grade wear-resistant aluminum alloy and processed through precision CNC machining, surface finishing and strict dimensional control, this piston features excellent heat dissipation, high strength and outstanding wear resistance. It maintains a tight and stable fit with the cylinder liner under long-term high-load, high-speed and high-temperature operating conditions, effectively reduces refrigerant leakage, restores compressor cooling performance and significantly extends the overhaul cycle of the AC unit.

With dimensions fully matching the original FK40 compressor specifications across all displacement versions, it supports direct in-situ replacement without modification, greatly simplifying overhaul workflow and shortening maintenance downtime. It is an essential core component for professional bus AC compressor overhaul and rebuild services.

Backed by 39 years of professional expertise in the bus HVAC industry, TCHAIN supplies 100% quality-inspected compressor piston parts that are fully compatible with most 6-14m diesel buses, school buses, shuttle buses and long-distance coaches equipped with FK40 series compressors. We provide competitive wholesale pricing, comprehensive technical support and fast global delivery to minimize your fleet maintenance downtime.