Antenna Mast – GM (42855154)

Factory part number 42855154: an antenna mast supplied by GM. It is catalogued under Electrical Components > Audio & Antennas.

• Superseded numbers are common, and where a factory number has been replaced the current part is usually dimensionally identical to the original.
• 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.

Genuine parts are made to the drawing the vehicle was built from, so dimensions and materials match the part being removed rather than being close to it.

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