Standard Ignition US-122 Ignition Switch

Ignition Switch for Ford Trucks and Vans

The Standard Ignition US-122 ignition switch is built for service replacement on select 1977 Ford trucks and vans. It uses copper alloy conductors for strong electrical transfer and is 100% tested for mechanical and electrical switching performance.

Compatible with 1977 Ford E-100 Econoline, E-150 Econoline, E-250 Econoline, E-350 Econoline, and F-Series applications, this column-mounted ignition switch is made for direct-fit service work. The US-122 is a practical choice when restoring reliable key-start operation in classic Ford commercial and light-duty vehicles.

Key Features

• Standard Ignition US-122 ignition switch for column-mounted applications
• Bolt-on attachment method for service replacement
• Female connector with 1 round connector interface
• 6 male blade terminals for electrical connection
• Copper alloy conductors for low-resistance electrical flow
• 100% tested for mechanical and electrical switching performance
• Compatible with 1977 Ford E-100 Econoline, E-150 Econoline, E-250 Econoline, E-350 Econoline, F-100, F-150, F-250, and F-350

Detailed Description

Standard Ignition US-122 is an ignition switch engineered for dependable replacement service in 1977 Ford E-100 Econoline, E-150 Econoline, E-250 Econoline, E-350 Econoline, and F-Series trucks. Its column mounting location, bolt-on attachment, round female connector, and 6-blade terminal layout support straightforward replacement where the original switch matches these specifications. The part number US-122 is also referenced in interchange listings for related service applications, including Dorman HELP 56048.

Common Issues This Part Can Address

• Intermittent or no-start conditions caused by worn internal switch contacts
• Key position problems affecting accessory, ignition, or start circuits
• Electrical continuity loss from heat- or age-related switch wear
• Hard starting caused by inconsistent ignition switch output
• Restoration needs for classic Ford Econoline vans and F-Series trucks

Installation Notes and Tips

Verify the connector shape, terminal count, mounting location, and attachment method against the original switch before installation. On 1977 Ford E-100 Econoline, E-150 Econoline, E-250 Econoline, E-350 Econoline, F-100, F-150, F-250, and F-350 models, confirm the column-mounted configuration and blade-terminal layout match the vehicle’s existing wiring. Compare the original part number US-122 or equivalent reference numbers during diagnosis to reduce installation errors.

Quality Assurance

Standard Ignition builds this switch with robust materials and copper alloy conductors to support consistent electrical performance. Each unit is tested for both mechanical operation and electrical switching function before release.