W003t22171 DLS/D8S/D6S Xenon Headlight Ballast Control Unit 8K0941597F

W003T22171 / 8K0941597F Xenon Headlight Ballast - DLS / D8S / D6S 25W

New aftermarket replacement xenon ballast for the matching W003T22171 / 8K0941597F headlight application. The supplied label identifies DLS / D8S / D6S and 25W. Suitable for the left or right headlight where the original ballast, connectors and mounting pattern match. Supplied with a one-year warranty.

Key Features

• Replacement reference: W003T22171 / 8K0941597F
• 25W xenon ballast, with DLS / D8S / D6S label markings
• Left or right fitment in the matching headlight application
• Metal housing with connector arrangement and mounting tabs as pictured
• One new replacement ballast supplied
• One-year warranty

Technical Specifications

Part References & Vehicle Fitment

Expand the sections below to compare references and headlight equipment.

Installation & Fault Diagnosis

Professional installation is recommended. Xenon ballasts generate high ignition voltage; disconnect power and follow the vehicle-specific workshop procedure before handling the unit. Check the bulb, supply, wiring, connectors and headlight for moisture before replacing the ballast. Fit the correct seal and resolve water ingress before refitting.

This replacement is intended to fit the matching original position. Diagnostic checks, fault-code clearing or vehicle-specific setup may be required after installation.

What’s Included

One new aftermarket xenon ballast control unit. The xenon bulb, complete headlight and vehicle wiring are not included.

For fitment help, provide a clear photo of your original ballast label, connectors and headlight label, together with the vehicle details.

Frequently Asked Questions

Is this a genuine Mitsubishi Electric ballast?

This listing is for a new aftermarket replacement. W003T22171 is the original-unit reference used to identify the application; it does not mean the replacement is manufactured by Mitsubishi Electric.

Which lamp types does it support?

The supplied label shows DLS, D8S and D6S, with a 25W rating. Match the lamp specification and complete ballast reference on your original unit. This is not a universal 35W xenon ballast.

Can it fit the left or right headlight?

It can be used on either side where the headlight uses the matching ballast reference, connector arrangement and mounting pattern. One ballast is supplied; left/right suitability does not confirm compatibility with every headlight option.

Does it need coding or programming?

It is intended as a direct replacement for the matching original ballast. Follow the vehicle-specific fitting procedure and carry out diagnostic checks where required. Fault-code clearing or other setup may be needed; a coding-free result is not guaranteed for every application.

Will it fix every flickering or non-working xenon headlight?

No. Bulb, wiring, connector, power-supply and moisture faults can produce similar symptoms. Diagnose the cause before replacing the ballast and check the headlight for water ingress.

What is included and what warranty applies?

One new replacement xenon ballast control unit is supplied, with the one-year warranty stated for this product. The xenon bulb, complete headlight and vehicle wiring are not included.