Meter refrigerant between the high- and low-pressure sides of the A/C system with the Four Seasons A/C Orifice Tube 623. This white, injection-molded orifice tube is an application-specific, direct-fit replacement for the listed vehicles, including the 1989-1993 Audi 100, 1977-1998 Buick Century, 1977-2005 Cadillac DeVille, and 1985-2001 Chevrolet Astro — see the Buyer's Guide tab for the full list of 257 applications.
An orifice tube serves as the divide between the high- and low-pressure sections of the A/C system: a simple component with no moving parts that lets refrigerant flow through its fixed-diameter tube. Because it also acts as a refrigerant filter, it can become clogged with debris, which is why it is replaced during A/C service.
- Seals the pressure split: includes the o-rings and gaskets needed to seal the high-pressure side from the low-pressure side.
- Easy identification: injection-molded, color-coded white plastic.
- Application-specific: built per OEM size and color for straightforward installation.
- Bulk pack: sold as a 10-count package (minimum order quantity 10).
Backed by Four Seasons' mobile A/C experience. Manufacturer part number 623.
This part cross-references / interchanges with the following part numbers:
1534033, 7100623, CWK757023, 207311B, 48292, AC3304P, AC3304PC, T623, 3757023, 757023, NK336, 111623V, 623, 932211, 19187522, 707311B, 70442410, 3421243, A8292V, 4600, 4601, 208336, 1110, EX5151C
