Standard Ignition US-819 Ignition Switch

Brand Standard Ignition US-819
Attachment Method Snap Fit
Color Black, White
Connector Gender Female
Connector Shape Square
Finish Plastic
Mounting Location Column
Terminal Gender Male
Terminal Type Blade
Fits Mazda · 21 vehicles

Snap-fit design. Installs securely with a simple snap-fit attachment method.

Single connector. Features one square female connector for a clean connection.

Blade terminals. Uses 8 male blade terminals for reliable electrical contact.

Cross-references Standard Ignition US-819, BP4K66151 and CS1179 for the same application. See all 5.

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Ignition Switch for Mazda 3 and Mazda 5

Standard Ignition US-819 is a column-mounted ignition switch built with a black and white plastic finish, a square female connector, and blade-style terminals for a direct electrical interface. It is a fitment-based replacement for select Mazda 3, Mazda 3 Sport, and Mazda 5 applications across multiple model years.

Key Features

  • Column-mounted ignition switch for vehicle starting and accessory circuit control
  • Snap-fit attachment method for secure installation at the steering column
  • 1 square female connector with 8 male blade terminals
  • Black and white plastic construction
  • Direct replacement part number: US-819

Detailed Description

Standard Ignition US-819 is an ignition switch designed for Mazda vehicles that use a column-mounted switch assembly. The connector layout, terminal count, and blade terminal design support a straightforward electrical match for the specified applications. This part is listed for 2004-2013 Mazda 3, 2012-2013 Mazda 3 Sport, and 2006-2010 and 2012-2015 Mazda 5, making it a practical choice when replacing a worn or electrically inconsistent ignition switch. This part number, US-819, is also referenced under BP4K66151, CS1179, KS7179, and LS1420 for the same application.

What It Helps Fix

  • Intermittent no-start or crank-no-start conditions caused by switch wear
  • Accessory power loss at the ignition switch position
  • Key position issues such as inconsistent ignition response
  • Electrical contact problems at the steering column switch assembly
  • Starting circuit faults traced to the ignition switch

Installation Notes and Tips

Fits 2004-2013 Mazda 3, N/A. Fits 2012-2013 Mazda 3 Sport, N/A. Fits 2006-2010 Mazda 5, N/A. Fits 2012-2015 Mazda 5, N/A. Confirm the connector shape, terminal count, and column mounting location before installation. Compare the original switch to US-819 to verify the snap-fit attachment and electrical terminal layout match the vehicle harness.

Quality Assurance

Standard Ignition supplies replacement ignition components for service applications, and US-819 is built to match the listed connector and terminal configuration for the specified Mazda fitments.

This part fits 21 vehicles
Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.
YearMakeModelPositionNotes
2015Mazda5N/A
2014Mazda5N/A
2013Mazda3N/A
2013Mazda3 SportN/A
2013Mazda5N/A
2012Mazda3N/A
2012Mazda3 SportN/A
2012Mazda5N/A
2011Mazda3N/A
2010Mazda3N/A
2010Mazda5N/A
2009Mazda3N/A
2009Mazda5N/A
2008Mazda3N/A
2008Mazda5N/A
2007Mazda3N/A
2007Mazda5N/A
2006Mazda3N/A
2006Mazda5N/A
2005Mazda3N/A
2004Mazda3N/A
Directly replaces or cross-references 5 part numbers
Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.
Standard Ignition — US-819BP4K66151CS1179KS7179LS1420