Standard Ignition NS-339 Neutral Safety Switch

Brand Standard Ignition NS-339
Connector Gender Female
Mounting Type Bolt Mount
Terminal Gender Male
Terminal Type Pins
Fits Audi and Volkswagen · 34 vehicles

Bolt-mount design. Installs securely with a simple bolt-on attachment method.

8-pin connection. Female round connector with eight terminals for reliable electrical contact.

Plastic and metal construction. Combines durable materials in a compact 12V switch.

Cross-references Standard Ignition NS-339, 01L919821 and NS6832 for the same application. See all 5.

$454.35Free shipping
In stock · usually ships same day before 1pm CST
Step 1 — Confirm fitment
Free return shipping if it doesn't fit when you check fitment here first.
Select your vehicle to confirm fitment
Verify this part fits before purchasing — free returns if it doesn't
Step 2 — Quantity
Order total $454.35
Free shipping to the continental U.S.
Free returns within 60 days if it doesn't fit when fitment is verified.

Neutral Safety Switch for Audi and Volkswagen

Standard Ignition NS-339 is a 12V neutral safety switch built with a bolt-mount design, 8-pin male terminals, and one round female connector. It is a direct-fit electrical replacement for select Audi and Volkswagen applications, including Audi A4, A6, A8, S4, S8, and Volkswagen Passat models.

Key Features

  • Neutral safety switch for automatic transmission starting circuit control
  • 12V electrical design with 8 terminals and 8 wires
  • Bolt-mount attachment method for secure installation
  • Round female connector with male pin terminals
  • Plastic and metal construction with black and silver finish
  • Wiring harness length: 18.125 in. (460.375 mm)
  • Length: 4.25 in. (107.95 mm)

Detailed Description

Standard Ignition NS-339 is a replacement neutral safety switch for vehicles that require a precise transmission range signal to allow starting only in the proper gear position. This part number NS-339 is used across select Audi and Volkswagen platforms, including 1996-2000 Audi A4, 1996-2000 Audi A4 Quattro, 1997-2000 Audi A6, 1997-2000 Audi A6 Quattro, 1997-2000 Audi A8, 1997-2000 Audi A8 Quattro, 2000 Audi S4, 2001-2003 Audi S8, and 1998-2001 Volkswagen Passat. This part cross-references 01L919821 and NS6832 for the same application.

What It Helps Fix

  • Engine cranks only in certain gear positions
  • No-crank condition when the shifter is in Park or Neutral
  • Intermittent starting caused by a worn transmission range switch
  • Incorrect starter enable signal from the shift selector circuit
  • Transmission position signal faults on Audi and Volkswagen vehicles

Installation Notes and Tips

Verify connector style, terminal count, and vehicle build date before installation. This NS-339 switch uses a bolt-mount design and an 8-pin round connector, so matching the original electrical and mounting layout is important for proper fitment. Confirm application details for 2000 Audi A4, A4 Quattro, A6, A6 Quattro, A8, A8 Quattro, and S4 models with the listed production cutoffs, as well as 2001-2003 Audi S8 and 1998-2001 Volkswagen Passat coverage.

Quality Assurance

Standard Ignition supplies this neutral safety switch as an OE-style electrical replacement for select Audi and Volkswagen applications. The NS-339 is built with plastic and metal materials and a 12V electrical specification to match the original circuit requirements for the listed vehicles.

This part fits 34 vehicles
Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.
YearMakeModelTransmissionLitersCylindersPositionNotes
2003AudiS8—4.2LV8N/A8 Pin
2002AudiS8—4.2LV8N/A8 Pin
2001AudiS8—4.2LV8N/A8 Pin
2001VolkswagenPassatAutomatic——N/A—
2000AudiA4———N/ATo 4/00
2000AudiA4 Quattro———N/ATo 4/00
2000AudiA6———N/ATo 4/00
2000AudiA6 Quattro———N/ATo 4/00
2000AudiA8———N/ATo 4/00
2000AudiA8 Quattro———N/ATo 4/00
2000AudiS4—2.7LV6N/ATo Chassis No. 8D-Y-200 000
2000VolkswagenPassatAutomatic——N/A—
1999AudiA4———N/A—
1999AudiA4 Quattro———N/A—
1999AudiA6———N/A—
1999AudiA6 Quattro———N/A—
1999AudiA8———N/A—
1999AudiA8 Quattro———N/A—
1999VolkswagenPassatAutomatic——N/A—
1998AudiA4———N/A—
1998AudiA4 Quattro———N/A—
1998AudiA6———N/A—
1998AudiA6 Quattro———N/A—
1998AudiA8———N/A—
1998AudiA8 Quattro———N/A—
1998VolkswagenPassatAutomatic——N/A—
1997AudiA4———N/A—
1997AudiA4 Quattro———N/A—
1997AudiA6———N/AFrom 11/97
1997AudiA6 Quattro———N/AFrom 11/97
1997AudiA8———N/A—
1997AudiA8 Quattro———N/A—
1996AudiA4———N/A—
1996AudiA4 Quattro———N/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 — NS-33901L919821NS6832NS38050RB430