Regulator – GM (89058280)

This is a regulator from GM, factory part number 89058280. It is catalogued under Valves & Regulators > Regulators & Adjusters.

• Corrosion at a mounting face is worth cleaning back before fitting anything new, because a part that sits on scale will work loose.
• 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.
• A part that fails early usually points at an installation fault or a worn component nearby rather than at the part itself.

An expansion valve for an orifice-tube system is not interchangeable with one for a TXV system even where the fittings match. 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.

Confirm the number before you order, because a near match will bolt on and still be wrong. Send the VIN if the old marking has gone. In stock and sent from the US in one to two business days, free delivery over $59.