A2-15 Compressor Cylinder Liner (Sleeve) for 4U 4T 4P 4N Bus AC Compressor

The A2-15 is a high-precision compressor cylinder liner (sleeve) designed for 4U, 4T, 4P and 4N series heavy-duty bus air conditioner compressors. As a core internal component of the compressor cylinder, it forms the compression chamber wall, directly determining the compression efficiency, sealing performance and service life of the entire AC compressor.

Manufactured from high-grade wear-resistant alloy cast iron and processed through precision honing and surface treatment, this cylinder liner features excellent surface smoothness, high dimensional accuracy and outstanding wear resistance. It ensures a tight fit with piston rings, effectively reduces refrigerant leakage, improves compression efficiency, and significantly extends the overhaul cycle of the compressor under long-term high-load operating conditions.

Its universal compatibility with 4U, 4T, 4P and 4N compressor models greatly reduces spare parts inventory pressure and simplifies procurement management for fleet operators and repair workshops. It is an essential replacement part for professional bus AC compressor overhaul and maintenance.

Backed by 39 years of professional expertise in the bus HVAC industry, TCHAIN supplies 100% quality-inspected compressor cylinder liners that are fully compatible with most 6-14m diesel buses, school buses, shuttle buses and long-distance coaches equipped with 4-series AC compressors. We provide competitive wholesale pricing, comprehensive technical support and fast global delivery to minimize your fleet maintenance downtime.

Applications

• 4U / 4T / 4P / 4N series bus AC compressors

• Heavy-duty city bus AC compressor overhaul

• School bus AC system maintenance & repair

• Commercial shuttle bus AC compressor rebuild

• Long-distance intercity coach HVAC service

• Special vehicle air conditioner compressor repair