CO 4081C UAC SD7H15 Compressor Assembly

It circulates refrigerant and creates the pressure differential needed for cooling in a truck A/C system. As an SD7H15 compressor assembly, it’s built for 12V applications and is used as a truck A/C compressor on many heavy-duty setups. Proper operation also depends on correct oil type/quantity and a clean, sealed system.

Match the CO 4081C compressor specs to the unit being replaced, including 8 grooves, 12V, and a 119 mm pulley diameter. Verify port sizing (18 mm discharge and 21 mm suction) and mounting style to avoid alignment or hose fit issues. Cross-references such as Sanden 4081/4067 and Freightliner F696003112 can help confirm interchange for this UAC compressor.

Replacing the receiver/drier (or accumulator) and the expansion device/orifice tube is strongly recommended to protect the new air conditioning compressor from debris and moisture. If the previous unit failed internally, flush the lines and condenser, then evacuate and recharge with the specified refrigerant after adding the correct oil amount. Confirm belt alignment on the 8-groove pulley and leak-check the system after installation to help extend SD7H15 compressor assembly life.