ILONPA AC Compressor with Clutch for Dodge Ram 2500/3500 (2006–2009) HS18, Prefilled PAG46

If your Dodge Ram’s air conditioning is blowing warm air or the compressor clutch has failed, this ILONPA CO10902C-compatible compressor is built as a direct-fit option for diesel Ram 2500 and 3500 trucks from 2006–2009. The unit ships prefilled with 180 ml of PAG 46 oil, features an HS18 compressor design, and matches pulley and mounting specifications used by the original equipment. It replaces a long list of OEM numbers, making it a convenient aftermarket swap for common Chrysler and Cummins setups.

How do I know this compressor fits my Ram?

Compatibility is keyed to model year, engine displacement, and diesel configuration. This ILONPA unit is specified for 2006–2009 Dodge Ram 2500 and 2006–2009 Ram 3500 models equipped with the 5.9L or 6.7L diesel engines.

• Fits: 2006–2009 Ram 2500 5.9L; 2007–2009 Ram 2500 6.7L
• Fits: 2006–2007 Ram 3500 5.9L; 2007–2009 Ram 3500 6.7L
• Diesel-only application—verify engine size and year before ordering

What specifications and parts does this replace?

This compressor uses an HS18 design with an 8-groove pulley and a 119 mm pulley diameter. It replaces multiple factory part numbers, making it suitable where those OEM references apply.

• Replaces part numbers: 10902C, 1010902, 1110902, 1210902 and several 55111411xx variants
• Oil: PAG 46, prefilled 180 ml for immediate use
• Pulley: 8 grooves, 119 mm diameter; compressor type HS18

What performance and durability features does this ILONPA unit offer?

The housing is high-strength aluminum alloy, designed to resist corrosion and reduce weight while helping thermal management. ILONPA highlights low noise and minimized vibration for a smoother cabin experience and claims efficiency improvements compared with worn or failing compressors.

• High-strength aluminum alloy construction for longevity
• Engineered for low noise and reduced vibration
• Energy-efficient operation that supports steady-driving fuel economy

What should I know before installation?

Proper system preparation and correct charging are essential to avoid premature failure. ILONPA recommends a full system clean and professional installation to ensure all contaminants are removed and the correct refrigerant/oil balance is restored.

• Flush the AC system and fully evaporate cleaning agents before fitting
• Professional installation and commissioning advised for correct refrigerant charge
• Verify clutch engagement and electrical connections after installation

Who is this for: This ILONPA compressor assembly is intended for owners, fleet managers, and mechanics replacing a failed or worn AC compressor on diesel Dodge Ram 2500 and 3500 trucks (2006–2009) with 5.9L or 6.7L engines. If you need a direct-replacement HS18 compressor prefilled with PAG 46 oil and compatible with a broad set of OEM numbers, this unit is a practical aftermarket option—especially when paired with a professional flush, recharge, and system inspection.