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D3S & D4S Xenon HID Ballast (Part No. 8K0 941 597 / 8K0941597E)

35W 85V OEM Replacement Xenon Headlight Control Unit for Audi, VW, Skoda, Mercedes & BMW

5 sold in the last 24 hours
Rs. 8,299.00 Rs. 20,000.00

Inclusive of all taxes. Extra 2% off on UPI (Auto applied)

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Product Highlights

  • Direct OEM Replacement: Replaces factory ballast part numbers 8K0941597, 8K0941597C, 8K0941597E, and W003T20171.
  • 35W 85V AC Output: Supplies regulated ignition power to D3S, D3R, D4S, and D4R xenon bulbs.
  • No ECU Coding Required: Plug-and-play installation connects to original headlight harness plugs without dealer software coding.
  • Die-Cast Aluminum Housing: Heavy-duty metal casing protects internal electronics from heat and vibration.

Got questions?

FREQUENTLY ASKED QUESTIONS

Quick answers to common questions about fitment, installation, and product use.

How do I verify if this ballast matches my car's original unit?
Check the printed part number on your original ballast case. If it reads 8K0941597, 8K0941597C, 8K0941597E, or W003T20171, this unit is a direct match.
Does this ballast fit both left and right headlights?
Yes, the module design is interchangeable for both left (driver side) and right (passenger side) headlight assemblies.
Does installation require computer coding or programming?
No, it features factory firmware protocols for immediate plug-and-play operation.

Product Details

Description

D3S & D4S Xenon HID Ballast (Part No. 8K0 941 597 / 8K0941597E)

Replace flickering or dead OEM xenon headlamps with the D3S & D4S Xenon HID Ballast Module. Manufactured to exact OEM specifications under part numbers 8K0 941 597, 8K0941597C, and 8K0941597E, this control unit restores 35W power to left or right factory HID headlights.

Direct Replacement - No ECU Coding Required

Molded from die-cast aluminum alloy, this ballast mounts directly to the underside of original headlight housings. It operates on 12V DC input and delivers 85V AC 35W output to D3S, D3R, D4S, and D4R gas-discharge bulbs without requiring dealer computer programming.

Key Features

  • OEM Part Number Match: Replaces 8K0941597, 8K0941597C, 8K0941597E, W003T20171, W003T22071, and BAM92-143700.
  • Aluminum Alloy Body: Die-cast metal housing dissipates internal heat and protects circuits from engine bay moisture.
  • 35W 85V AC Power Output: Provides stable ignition voltage for D3S, D3R, D4S, and D4R xenon bulbs.
  • Plug-and-Play Fitment: Connects to factory multi-pin wire harness plugs on Audi, Volkswagen, Skoda, Mercedes, and BMW vehicles.
In The Box
  • 1 x D3S / D4S OEM HID Xenon Ballast Module
Shipping & Returns
  • Not Returnable
Warranty
  • 6 Months

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