We built this Invacare Platinum 5 cylinder sleeve to restore full pressure and airflow to Thomas 2650 and 2660 compressors. In addition, this part directly replaces OEM part number 618114.

Over time, cylinder walls wear down and get scratched from heat. As a result, bad sleeves cause air leaks, slow pressure build-up, and low-oxygen alarms. Installing this new aluminum cylinder sleeve (SKU: T-5011) restores a smooth bore for a tight cup seal.

Invacare Platinum 5 Cylinder Sleeve Highlights

• OEM Cross-Reference: Directly replaces OEM part number 618114 and factory sleeves in Thomas kits (SKU: T-5011).
• Exact Fit: Built for Thomas 2650 and 2660 compressors in Invacare Platinum 5 units.
• Long Life: High-grade aluminum resists heat and wear for long pump life.
• Restores Airflow: Stops cylinder leaks so the unit builds pressure and cycles on time.

Installation & Compressor Service Advice

First, check your piston cups when you install a new Invacare Platinum 5 cylinder sleeve. If the old cup is hard or worn, pairing it with a new sleeve will hurt performance.

In addition, Thomas 2650 and 2660 pumps use twin cylinders. Therefore, techs suggest replacing both sleeves and cups at the same time to balance airflow. Furthermore, if you need valves and head gaskets, see our complete rebuild kit (TCK-2650/2660).