Hyundai A/C Compressor Drive Belts Catalog | Excavator Climate Control Parts

A/C Compressor Drive Belts Catalog

This catalog details essential air conditioning (A/C) drive belts for Hyundai excavators. A properly tensioned and high-quality belt is vital for the reliable operation of the A/C compressor, ensuring cabin comfort and preventing mechanical stress on the drive system.

1. Belt Specifications

Part Number	Compatibility	Function
11NB-90051	R215-7, R215-9, R455LC-7	Transmits engine rotation to the A/C compressor for cabin climate control
11S7-90110	R275LC-9T, R305LC-9T, R335LC-9T, R375LC-7	High-durability belt for heavy-duty cooling in larger frame excavators
12E2-3505	R130LC-5, R150LC-7, R150W-7, R210W-5, R210W-7	Reliable drive belt for versatile mid-range models
12E1-3509	R130LC-5, R220LC-5, R300LC-5	Essential drive component for 5-series climate control systems

2. Maintenance Protocols

Inspection: Regularly inspect belts for signs of cracking, fraying, or "glazing" (shiny appearance on the underside). A glazed belt indicates slippage and loss of efficiency.
Tensioning: Proper tension is critical. A belt that is too loose will slip and overheat; a belt that is too tight can damage the compressor pulley bearings.
Replacement Tip: If you are replacing the belt, it is recommended to inspect the A/C belt tensioner (e.g., part 11N6-90110) at the same time to ensure the system maintains the correct factory tension.
Storage: Keep spare belts in a cool, dry place, away from direct sunlight and ozone sources to prevent premature rubber degradation.