We built this Invacare Platinum 5 rebuild kit to restore full pressure and airflow to Gast 82R compressors. In addition, this complete repair kit directly replaces Invacare OEM part 1124028, Gast K797A, and AIRMAX G33 (RP33 82R).

Over time, heat and long run hours wear down internal cups and valves. As a result, bad internal seals cause low-oxygen alarms, slow pressure build-up, and pump head leaks. Installing this complete service kit (SKU: GCK-82R) restores a tight air seal and brings your machine back to peak factory output.

Invacare Platinum 5 Gast 82R Kit Contents

• 2 - Piston Cups: Long-wear replacement cup seals (Gast AT280)
• 2 - Cylinder Sleeves: Precision 2.750-inch bore cylinders (Gast AT275)
• 2 - Head Gaskets: High-heat silicone sealing gaskets (Gast AP109B)
• 2 - Cylinder O-Rings: Heat-resistant base seal rings (Gast AT276)
• 4 - Leaf Valves: Stainless steel intake and exhaust reeds (Gast AF817)

Compressor Model Verification Note

First, check your pump brand before servicing your Invacare Platinum 5. Most Platinum 5 units use a Thomas 2650 or 2660 compressor, but earlier units use this Gast 82R twin pump.

Therefore, always check the metal ID tag on your pump body before ordering. If your unit has a Thomas compressor, you will need our TCK-2650/2660 rebuild kit instead. Made in the USA.