Standard Ignition US-999 Ignition Switch

Ignition Switch for Jaguar XK and XKR

Standard Ignition US-999 is a 12-volt ignition switch built for column mounting with a bolt-on attachment method. It uses one square female connector, six male pin terminals, and is listed for select Jaguar XK, XKR, and XF applications.

Key Features

• 12-volt ignition switch for column-mounted applications
• Bolt-on attachment method for direct replacement-style installation
• One square female connector with six male pin terminals
• Terminal layout designed for ignition circuit control
• Fits Jaguar XK, Jaguar XKR, and Jaguar XF applications listed below
• Standard Ignition US-999 part number for catalog matching

Detailed Description

Standard Ignition US-999 is an ignition switch intended for vehicles that use a column-mounted switch assembly with a square connector interface. The electrical design includes a single female connector and six male pin terminals, which helps maintain proper connection to the vehicle’s ignition circuit. For fitment-based searches, this part is listed for 2007-2009 Jaguar XK, 2009 Jaguar XF, 2010 Jaguar XK and XKR up to chassis no. B34896, and 2011-2015 Jaguar XK and XKR. This makes it a relevant replacement choice when searching for a Jaguar XK ignition switch or Jaguar XKR ignition switch by part number US-999.

This part cross-references C2P12281 and CS1359 for the same application.

What It Is Used For

• Restoring ignition switch function when the original switch no longer turns or signals correctly
• Addressing intermittent start or no-start conditions tied to the ignition switch circuit
• Replacing worn electrical contacts in the column-mounted switch assembly
• Correcting key-on power delivery issues in supported Jaguar XK, XKR, and XF models
• Matching a failed switch by connector shape, terminal count, and mounting style

Installation Notes and Tips

Verify the vehicle’s connector shape, terminal count, and mounting location before installation. This ignition switch is specified for column mounting and bolt-on attachment, so the replacement should match the original switch configuration. For 2010 Jaguar XK and 2010 Jaguar XKR, confirm chassis number B34896 or earlier before ordering. Always compare the existing part number and connector layout to Standard Ignition US-999 before installation.

Quality Assurance

Standard Ignition is a recognized aftermarket brand for electrical and ignition components. US-999 is cataloged with OE-style fitment data for supported Jaguar applications, including Jaguar XK, Jaguar XKR, and Jaguar XF models listed above.