ILONPA AC Compressor with Clutch for Toyota Sienna 3.3L (2004–2006 pre 12/15/2006) 10S20C, Prefilled PAG46 Oil

ILONPA's new air-conditioning compressor with clutch is a direct-fit replacement engineered to restore reliable cooling for Toyota Sienna 3.3L models built before 12/15/2006.

This replacement 10S20C compressor comes prefilled with 150ml PAG 46 oil and is compatible with R-134a refrigerant systems (refrigerant not included). Designed to replace multiple OEM part numbers including 1010854 and 1110854, the ILONPA unit aims to deliver quieter operation, reduced vibration, and durable aluminum-alloy construction for long-term service. Before installation, the vehicle’s AC system must be thoroughly cleaned and purged of contaminants to protect the new compressor; professional installation is recommended for proper commissioning.

Will this compressor fit my Toyota Sienna and replace my existing part number?

Yes — the ILONPA compressor is specified for Toyota Sienna 3.3L models from 2004, 2005, and 2006 built before 12/15/2006, and it cross-references many common OEM and aftermarket part numbers.

• Direct vehicle fit: Toyota Sienna 3.3L (2004–2006, built before 12/15/2006)
• Cross-reference: replaces 1010854, 1110854 plus an extensive list of OEM numbers
• Type: 10S20C compressor with 6-groove pulley, 119 mm diameter

What are the technical specifications I should know before buying?

The ILONPA unit ships prefilled with the correct oil type and matches the common physical and electrical characteristics needed for a proper fit and function.

• Oil: PAG 46, prefilled 150 ml
• Refrigerant: designed for R-134a systems (refrigerant not supplied)
• Pulley: 6 grooves, 119 mm diameter; compressor model: 10S20C

How does this compressor impact vehicle performance and efficiency?

This compressor is built from high-strength aluminum alloy to reduce weight and improve heat dissipation, aiming to provide quieter operation and lower vibration for a more comfortable cabin without increasing fuel consumption unnecessarily.

• Durable aluminum-alloy construction for long service life
• Engineered for low noise and minimal vibration during operation
• Designed to maintain efficient cooling with standard R-134a systems

What installation and maintenance steps should I follow?

To protect the new compressor, clean the AC system completely to remove debris and moisture, then have a qualified technician install and charge the system to factory specifications.

• Thoroughly flush and evacuate the AC system before fitting the compressor
• Professional installation and commissioning recommended for leak check and correct refrigerant charge
• Confirm compatibility with existing hoses, fittings, and electrical connectors prior to install

Who is this for: This ILONPA compressor is intended for owners and technicians performing a direct replacement on Toyota Sienna 3.3L vehicles built before 12/15/2006 who need a complete compressor-and-clutch assembly that cross-references popular OEM numbers. It’s a practical choice for repair shops, DIY mechanics with proper tools, and fleet maintenance teams seeking a robust aftermarket alternative to restore air-conditioning performance. Remember to verify vehicle build date and system type, prepare the AC system by flushing, and use professional charging to ensure reliable, long-lasting operation.