HomeIgnition > SwitchesStandard Ignition US-397 Ignition Switch
Part #: US-397

Standard Ignition US-397 Ignition Switch

⚙️ 78 vehicles fit this part
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OE Direct Replacement — Bolt-on fit, no modifications needed
🚗Fitment: Audi, Suzuki, Mitsubishi, and Ferrari, Cabriolet, X-90, A4, A4 Quattro, A6, A6 Quattro, A8, A8 Quattro, S6, 90, 90 Quattro, 100, 100 Quattro, S4, V8 Quattro, Precis, 80, 80 Quattro, 200, 200 Quattro, Coupe Quattro, 5000, 5000 Quattro, and 308 GTB
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Overview of Standard Ignition US-397 Ignition Switch

The Standard Ignition US-397 ignition switch is designed for reliable operation in select Audi, Mitsubishi, and Suzuki vehicles. This ignition switch ensures consistent electrical connection for starting and operating your vehicle's engine systems.

  • Compatible with Audi 80, 80 Quattro, 90, 90 Quattro, 100, 100 Quattro, 200, 200 Quattro, 5000 Quattro, A4, A4 Quattro, A6, A6 Quattro, A8, A8 Quattro, Cabriolet, Coupe Quattro, Precis, S4, S6, V8 Quattro, and X-90 models
  • Also fits select Mitsubishi and Suzuki models
  • Direct replacement ignition switch for OEM part number US-397
  • Ensures proper electrical contact for ignition and accessory circuits
  • Durable construction designed for long service life

Product Details and Compatibility

The Standard Ignition US-397 ignition switch is engineered to meet the specifications required by various Audi models, including the 80 series, 90 series, 100 series, 200 series, and multiple Quattro variants such as the 80 Quattro and 5000 Quattro. It also supports later models like the A4, A6, A8, and performance trims such as the S4 and S6. This ignition switch is essential for maintaining proper electrical flow to the ignition system, ensuring your vehicle starts and runs smoothly. The part number US-397 corresponds to a direct fit replacement, making it suitable for professional repairs or maintenance on compatible vehicles.

Common Applications and Problem Resolution

  • Resolves issues with ignition key turning or starting failure
  • Fixes intermittent electrical connection problems in the ignition circuit
  • Addresses accessory power loss when the key is in the ON position
  • Eliminates ignition switch-related engine stalling or shutdowns
  • Replaces worn or damaged ignition switches to restore vehicle functionality

Installation Notes and Tips

  • Ensure vehicle battery is disconnected before installation to prevent electrical shorts
  • Verify compatibility with your specific Audi, Mitsubishi, or Suzuki model and year
  • Follow manufacturer torque specifications when securing the ignition switch
  • Test all ignition positions (OFF, ACC, ON, START) after installation
  • Consult vehicle service manual for detailed removal and installation procedures

Quality Assurance and Warranty Information

Standard Ignition parts are manufactured to meet or exceed OEM standards for fit, form, and function. The US-397 ignition switch undergoes rigorous quality control to ensure reliable performance. While specific warranty terms may vary, Standard Ignition typically offers a limited warranty covering defects in material and workmanship. Refer to the product packaging or manufacturer documentation for exact warranty details.

BrandStandard Ignition
Part NumberUS-397
Attachment MethodSnap Fit
ColorBlack
Connector GenderFemale
Connector ShapeRound
FinishPlastic
Mounting LocationColumn
Terminal GenderMale
Terminal TypeBlade

This part fits 78 vehicles. Search below:

YearMakeModelSubmodelPositionNotes
1998AudiCabrioletN/A
1998SuzukiX-90N/A
1997AudiA4N/A
1997AudiA4 QuattroN/A
1997AudiA6N/A
1997AudiA6 QuattroN/A
1997AudiA8N/A
1997AudiA8 QuattroN/A
1997AudiCabrioletN/A
1997AudiS6N/A
1997SuzukiX-90N/A
1996AudiA4N/A
1996AudiA4 QuattroN/A
1996AudiA6N/A
1996AudiA6 QuattroN/A
1996AudiCabrioletN/A
1996AudiS6N/A
1996SuzukiX-90N/A
1995Audi90N/A
1995Audi90 QuattroN/A
1995AudiA6N/A
1995AudiA6 QuattroN/A
1995AudiCabrioletN/A
1995AudiS6N/A
1994Audi100N/A
1994Audi100 QuattroN/A
1994Audi90N/A
1994Audi90 QuattroN/A
1994AudiCabrioletN/A
1994AudiS4N/A
1994AudiV8 QuattroN/A
1994MitsubishiPrecisN/A
1993Audi100N/A
1993Audi100 QuattroN/A
1993Audi90N/A
1993Audi90 QuattroN/A
1993AudiS4N/A
1993AudiV8 QuattroN/A
1992Audi100N/A
1992Audi100 QuattroN/A
1992Audi80N/A
1992Audi80 QuattroN/A
1992AudiS4N/A
1992AudiV8 QuattroN/A
1991Audi100N/A
1991Audi100 QuattroN/A
1991Audi200N/A
1991Audi200 QuattroN/A
1991Audi80N/A
1991Audi80 QuattroN/A
1991Audi90N/A
1991Audi90 QuattroN/A
1991AudiCoupe QuattroN/A
1991AudiV8 QuattroN/A
1990Audi100N/A
1990Audi100 QuattroN/A
1990Audi200N/A
1990Audi200 QuattroN/A
1990Audi80N/A
1990Audi80 QuattroN/A
1990Audi90N/A
1990Audi90 QuattroN/A
1990AudiCoupe QuattroN/A
1990AudiV8 QuattroN/A
1989Audi100N/A
1989Audi100 QuattroN/A
1989Audi200N/A
1989Audi200 QuattroN/A
1989Audi80N/A
1989Audi80 QuattroN/A
1989Audi90N/A
1989Audi90 QuattroN/A
1988Audi5000 QuattroSN/A
1988Audi80N/A
1988Audi80 QuattroN/A
1988Audi90N/A
1988Audi90 QuattroN/A
1987Audi5000 QuattroSN/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:

18-05501S6450201-18164A090584953-2787288922109CS780KS6780LS901UL15-105V15-80-3217

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