Regulator – GM (97718939)

Factory part number 97718939: a regulator supplied by GM. It is catalogued under Valves & Regulators > Regulators & Adjusters.

• A/C valves are matched to the refrigerant and the system design rather than to the model year alone, because the same vehicle can be built with more than one system.
• An expansion valve for an orifice-tube system is not interchangeable with one for a TXV system even where the fittings match.
• Replace the seals with the valve. The old O-rings will not seal twice, and a leak here is often blamed on the new part.

A/C systems must be evacuated before a valve is opened, because moisture in the circuit will freeze at the valve and mimic a failed part. Torque figures belong to the fastener and the joint rather than to the part, so the factory procedure is the reference rather than a general rule.

Worth checking against the original before fitting. If you cannot read the number, we can match it from the VIN. Handed to the carrier within one to two business days from our US warehouse, free over $59.