Four Seasons A/C Orifice Tube P/N:38641
Four Seasons 38645 a/c orifice tube for the 2000-2003 Chevrolet Impala and other vehicles meters refrigerant as it passes from the high-pressure side of the A/C system to the low-pressure side.
Weak cooling at the vents can mean a restricted orifice tube, though low refrigerant or a compressor problem can look the same. Before you replace the orifice tube, rule those out first; if a restricted tube is the cause, this one takes its place.
The 1999-2005 Buick Century and 1999-2004 Buick Regal are among the other cars it fits.
Fit and size
Build and materials
In the box: the orifice tube with the O-rings and gaskets needed to seal high pressure from low pressure.
Does the Four Seasons 38645 orifice tube fit a 2000-2003 Chevrolet Impala?
Yes, Four Seasons 38645 is a direct fit replacement for the 2000-2003 Chevrolet Impala, 1999-2005 Buick Century and 1999-2004 Buick Regal. Check your own car on the Buyer's Guide tab for other years and models.
Does this orifice tube come with O-rings?
Yes, it includes the O-rings and gaskets needed to seal high pressure from low pressure.
Can the 38645 orifice tube be used with R12 and R134?
Yes, this orifice tube is compatible with R12 and R134. It is a dark grey porous tube made of injection molded plastic.
Is the 38645 orifice tube sized for specific cars?
Yes, this orifice tube is application specific per OEM size and color. The injection molded plastic is color coded for easy identification.
Is the Four Seasons 38645 orifice tube engineered and tested?
Yes, Four Seasons 38645 is engineered and tested for trouble free operation, and the brand has over 50 years of mobile a/c experience behind its products.
WARNING: These products can expose you to chemicals including lead and phthalates, which are known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.