MultiStar Cold – Your Source for Truck Refrigeration Unit Parts
The 33-1221 O-ring is a high-quality Thermo King parts replacement designed to seal the connection between the suction/throttling valve and the compressor in Thermo King transport refrigeration units . This critical sealing component is essential for preventing refrigerant leakage and ensuring optimal system performance and reliability.
CROSS-REFERENCE PART NUMBERS:
- 33-1221, 331221, 331-221
- 1081A99H39
Product Highlights:
- Part Number: 33-1221
- Type: O-ring (OEM equivalent to 1081A99H39, also replaces 1081A99H31 / 33-0241)
- Specifications: Approx. 89.0mm diameter
- Application: Seals valve-to-compressor connection
- Compatible Compressors: X418, X422, X426, X426, X430 series
Installation Note: When replacing this O-ring, it is recommended to use clean refrigerant oil for lubrication and inspect the mating surfaces for any damage or debris to ensure a proper seal .
As part of our extensive inventory of premium Thermo King aftermarket parts, this essential component is ideal for valve replacement or compressor servicing on your Thermo King units.
Multistar Cold is a professional supplier of transport refrigeration parts, specializing in Thermo King parts, Carrier Transicold parts, and Hwasung Thermo parts for the global aftermarket.
Multistar Parts Co., Ltd. – Your trusted partner for Thermo King, Carrier Transicold, and Hwasung Thermo parts.