Standard Ignition US-402 Ignition Switch

Ignition Switch for Mazda Applications

Standard Ignition US-402 is a column-mounted ignition switch built for direct replacement in select Mazda vehicles. It uses a bolt-on attachment, a rectangular female connector, and six male blade terminals to match the original electrical interface on supported applications.

Compatible With Mazda CX-9, MX-5 Miata, Mazda 6, CX-7, RX-8, MPV, Protege, and Protege5 applications across the listed model years, this ignition switch is a practical service part for restoring key-start operation and electrical switching at the steering column. The US-402 part number is also referenced in interchange listings for related applications.

Key Features

• Standard Ignition US-402 ignition switch for column mounting
• Bolt-on attachment method for a secure replacement fit
• Rectangular female connector with one connector interface
• Six male blade terminals for the specified electrical connection
• Direct-fit service part for select Mazda ignition switch applications
• Cross-reference part numbers include CS785 and KS6785

Detailed Description

The Standard Ignition US-402 is an ignition switch designed for vehicles that use a column-mounted switch assembly with a rectangular connector layout and blade-style terminals. It is listed for Mazda CX-9, MX-5 Miata, Mazda 6, CX-7, RX-8, MPV, Protege, and Protege5 model years shown in the fitment data, including 2011-2013 Mazda 6 applications without keyless ignition. For buyers searching for a Mazda ignition switch replacement, US-402 provides the specified connector and terminal configuration needed for a proper electrical match.

This part cross-references CS785 and KS6785 for the same application.

Common Issues This Part Can Address

• Intermittent or failed key-start operation
• Electrical contact wear inside the ignition switch circuit
• Loss of accessory, ignition, or start signal at the column
• Switch-related no-crank conditions on supported Mazda models
• Replacement needs after a damaged or worn steering column switch

Installation Notes and Tips

Verify the vehicle’s original connector shape, terminal count, and column mounting style before installation. This ignition switch uses a bolt-on attachment, a rectangular female connector, and six male blade terminals, so matching the original configuration is important for proper operation. For 2011-2013 Mazda 6 vehicles, confirm the vehicle is equipped without keyless ignition before ordering.

Quality Assurance

Standard Ignition is a recognized aftermarket brand for electrical and ignition service parts. US-402 is cataloged with defined connector and terminal specifications to support accurate replacement selection for the listed Mazda applications.