Compatibility

Attack

From H9 and H11 to H4, for use with M5 and M7 headlight modules

For motorcycles with the original dual-bulb headlight, with separate low and high beams

Equipment

Manufacturer’s warranty

5

In addition to the 24-month statutory conformity warranty

Dati dichiarati da DENALI sulla scheda ufficiale.

Due connettori originali, un unico attacco H4

Everything you need to know before ordering

Technical specifications, equipment, delivery, and warranty: below you’ll find every detail verified against the official DENALI documentation.

Description H9 and H11-to-H4 adapter for M5 and M7 LED headlights DNLWHS10400

Code DNLWHS10400 — DENALI code DNL.WHS.10400

The original halogen headlight uses two separate bulbs, H9 for high beam and H11 for low beam. The M5 and M7 LED headlight modules, however, use a single H4 connector.

This adapter combines the two factory connectors into an H4 female connector: plug-and-play installation, with no need to cut or splice wires.

Compatibility declared by the manufacturer: 2014-2025 Harley-Davidson Road King and 2014-2023 Street Glide models originally equipped with the halogen headlight. If your motorcycle was factory-equipped with an LED headlight, the correct adapter is the DNLWHS10300.

Why choose it

Su molte moto il faro originale usa due lampadine separate, H9 per l'abbagliante e H11 per l'anabbagliante. I moduli faro M5 e M7 hanno invece un unico attacco H4. Questo adattatore unisce i due connettori di serie in un H4 femmina, senza tagliare né giuntare cavi.

Complete technical specification sheet
Technical data
  • Tipo: adattatore di cablaggio da H9 e H11 ad H4 femmina
  • Serve per: montare un modulo faro DENALI M5 o M7
  • Collegamento: a innesto, il cablaggio originale resta intatto
  • Compatibilità: Harley-Davidson Road King 2014-2025 e Street Glide 2014-2023 con faro alogeno
  • Versione per faro LED originale: DNLWHS10300
  • Non compreso: il modulo faro

How does it work, in detail?

  • Combines the two original connectors into a single H4 connection.
Two connectors become an H4

Two connectors become an H4

The original halogen headlight uses two separate bulbs, H9 for the high beam and H11 for the low beam, while the M5 and M7 modules have only an H4 socket. This adapter combines the two factory connectors and routes them to a female H4 connector, without cutting or splicing.

Only for Road King and Street Glide

Only for Road King and Street Glide

It is not a universal adapter: DENALI specifies it for Harley-Davidson Road King models from 2014 to 2025 and Street Glide models from 2014 to 2023, in versions originally equipped with a halogen headlight. If yours came from the factory with an LED headlight, the correct adapter is the DNLWHS10300.

FAQs

For more information, see our FAQ of frequently asked questions.

Which adapter do I need for my headlight?

It depends on the connector your motorcycle has, not on the DENALI module. The M5 and M7 modules use an H4 connector: if your motorcycle already has an H4, you don’t need anything; if it has an H9, H11, or H13, you need the corresponding adapter. Check the code printed on the bulb you remove, or send us the make, model, and year and we’ll verify it for you.

Is the installation reversible?

Yes. It connects to the existing wiring with waterproof connectors, without cutting or splicing anything: if you ever want to return to the previous configuration, simply disconnect it and reinstall the original part.

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