HomeStandard Ignition US-990 Ignition Switch
Part #: US-990

Standard Ignition US-990 Ignition Switch

28 vehicles fit this part
Select your vehicle to confirm fitment
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OE Direct Replacement — Bolt-on fit, no modifications needed
Fitment: Audi, RS5, A4, A4 Quattro, A5, A5 Quattro, allroad, Q5, S4, and S5
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Reliable Ignition Switch for Audi Models

The Standard Ignition US-990 ignition switch is designed for precise fitment and dependable performance in select Audi vehicles. Engineered to meet OEM specifications, this ignition switch ensures consistent electrical connection and reliable operation for your Audi A4, A5, Q5, and related models.

  • Bolt-on attachment method for secure installation
  • Female rectangular connector with one connector for easy wiring
  • 12 male pin terminals for robust electrical contact
  • Column mounting location compatible with factory setup
  • Non-illuminated design matching original equipment

Product Details and Specifications

The Standard Ignition US-990 ignition switch features a bolt-on attachment method, allowing for straightforward replacement without modification. It includes a single female rectangular connector designed to interface seamlessly with the vehicle’s wiring harness. The switch has 12 male pin terminals, providing a reliable electrical connection necessary for ignition and accessory circuits. This component mounts directly to the steering column, maintaining the original equipment configuration and ensuring proper alignment and function.

Compatible Audi Models and Applications

This ignition switch is compatible with a range of Audi vehicles, including the A4, A4 Quattro, A5, A5 Quattro, allroad, Q5, RS5, S4, and S5 models. It is specifically designed to replace the factory ignition switch in these vehicles, making it a suitable choice for owners seeking a direct-fit replacement part.

Common Issues Addressed by the US-990 Ignition Switch

  • Intermittent or no start conditions due to faulty ignition switch contacts
  • Electrical accessory failures linked to ignition switch malfunction
  • Steering column ignition switch wear causing key recognition problems
  • Loss of power to ignition circuits during vehicle operation
  • Replacement of damaged or worn ignition switch components

Installation Notes and Tips

Installation of the Standard Ignition US-990 ignition switch requires removal of the steering column covers to access the mounting bolts. Ensure the vehicle battery is disconnected before beginning to prevent electrical shorts. The bolt-on design allows for direct replacement without the need for additional adapters or modifications. Verify connector orientation and terminal engagement during installation to ensure proper electrical function.

Quality Assurance and Warranty

Standard Ignition parts are manufactured to meet or exceed OEM standards for fit, form, and function. The US-990 ignition switch undergoes rigorous quality control testing to ensure durability and reliable operation. This part is backed by Standard Ignition’s limited warranty, providing coverage against defects in materials and workmanship under normal use.

BrandStandard Ignition
Part NumberUS-990
Attachment MethodBolt On
Connector GenderFemale
Connector ShapeRectangular
IlluminatedNo
Mounting LocationColumn
Terminal GenderMale
Terminal TypePin

This part fits 28 vehicles. Search below:

YearMakeModelLitersCylindersPositionNotes
2015AudiRS5N/A
2014AudiRS5N/A
2013AudiA42.0LL4N/A
2013AudiA4 Quattro2.0LL4N/A
2013AudiA5N/A
2013AudiA5 QuattroN/A
2013AudiallroadN/A
2013AudiQ52.0LL4N/A
2013AudiQ53.0LV6N/A
2013AudiRS5N/A
2013AudiS4N/A
2013AudiS5N/A
2012AudiA42.0LL4N/A
2012AudiA4 Quattro2.0LL4N/A
2012AudiA5N/A
2011AudiA42.0LL4N/A
2011AudiA4 Quattro2.0LL4N/A
2011AudiA5N/A
2010AudiA4N/A
2010AudiA4 QuattroN/A
2010AudiA5N/AFrom 11/9/09
2010AudiA5 QuattroN/AFrom 11/9/09
2010AudiQ53.2LV6N/A
2010AudiS43.0LV6N/A
2010AudiS54.2LV8N/AFrom 11/9/09
2010AudiS53.0LV6N/AFrom 11/9/09
2009AudiA4N/A
2009AudiA4 QuattroN/A

* Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.

This part directly replaces or is cross-referenced with the following part numbers:

1S109528K0909131DCS1350KS7350LA10108

Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.