What are the Ford part numbers for the antenna components?

The diagram identifies the mast as 18A886, the cap as 18A927, the mounting screw as 55962-S36M, the base and cable assembly as 18898, the gasket as 18898, and the grommet as 18A908.

How does the antenna cable enter the cab?

The lower-left view shows the antenna cable routing through grommet 18A908 in the body toward the radio chassis behind the instrument panel.

Does the diagram show connections for both AM and AM/FM radios?

Yes. Separate views show the connection of the AM radio antenna lead-in and the AM/FM radio antenna lead-in to the radio chassis.

What parts sit between the antenna mast and the body?

Below the mast and cap, the assembly uses a base and cable assembly (18898) with a gasket (18898) between the base and the body panel, secured by screw 55962-S36M.

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1978 Ford Bronco Radio Antenna Exploded Parts Diagram - AM/AM-FM Lead-In

Radio antenna mast and base assembly exploded view with antenna lead-in connection views

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Exploded parts and installation diagram of an AM/FM radio antenna mast, base assembly, gasket and antenna lead-in connections.

AI caption March 2006 · Photo 266 of 529

This document is an exploded parts diagram and installation illustration for a Ford radio antenna assembly, uploaded to a 1978 Ford Bronco's document gallery. The upper-left illustration shows an exploded view of the fender-mounted antenna, identifying the mast (part 18A886), cap (18A927), mounting screw (55962-S36M), base and cable assembly (18898), and gasket (18898). A lower-left illustration shows the antenna cable routing through a grommet (18A908) in the cowl/fender area toward the radio chassis behind the instrument panel. Two right-side views show how the antenna lead-in cable connects to the back of the radio chassis: one labeled "View Showing Connection of AM Radio Antenna Lead-In" (with a callout to "route antenna") and one labeled "View Showing Connection of AM/FM Radio Antenna Lead-In" (with callouts for the antenna lead-in and radio chassis). A reader can learn the component breakdown of the antenna assembly with Ford basic part numbers, where the cable passes through the body via the grommet, and how the lead-in plugs into either an AM or AM/FM radio chassis. The document itself carries no year, model, or engine applicability statements.

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Frequently asked questions

What are the Ford part numbers for the antenna components?: The diagram identifies the mast as 18A886, the cap as 18A927, the mounting screw as 55962-S36M, the base and cable assembly as 18898, the gasket as 18898, and the grommet as 18A908.
How does the antenna cable enter the cab?: The lower-left view shows the antenna cable routing through grommet 18A908 in the body toward the radio chassis behind the instrument panel.
Does the diagram show connections for both AM and AM/FM radios?: Yes. Separate views show the connection of the AM radio antenna lead-in and the AM/FM radio antenna lead-in to the radio chassis.
What parts sit between the antenna mast and the body?: Below the mast and cap, the assembly uses a base and cable assembly (18898) with a gasket (18898) between the base and the body panel, secured by screw 55962-S36M.