Sennheiser · Official replacement (OEM)

HD 4.20S/4.30I/G/350BT EARPADS

Verified as compatible with 5 headphone models.

Verified compatible headphones

Evidence

  • us.sennheiser-hearing.com Tier A · Manufacturer

    Sennheiser identifies these as genuine OEM earpads, gives article number 507203, and explicitly names HD 350BT as a compatible model.

  • au.sennheiser-hearing.com Tier A · Manufacturer

    Sennheiser Australia identifies the earpads as for HD 4.20S/4.30I/G/4.40/350BT and gives article number 507203.

  • us.sennheiser-hearing.com Tier A · Manufacturer

    Sennheiser US's earpads collection lists the HD 4.20S/4.30I/G/350BT earpads.

  • global.sennheiser-hearing.com Tier A · Manufacturer

    Sennheiser’s genuine spare-parts listing explicitly includes HD 4.40 in its compatibility list and identifies part 507203.

  • spares.sennheiser-hearing.com Tier A · Manufacturer

    Sennheiser’s exact HD 4.40 BT spare-parts page lists “HD 4.20/4.30/4.40 EARPADS,” article number 507203.

  • global.sennheiser-hearing.com Tier A · Manufacturer

    Sennheiser’s official product page identifies article no. 507203 as genuine replacement earpads sold as a pair and explicitly lists HD 400S as compatible.

  • spares.sennheiser-hearing.com Tier A · Manufacturer

    Sennheiser’s official spare-parts page identifies the target as HD 400S, article no. 508598, and lists HD 4.20/4.30/4.40 earpads, article no. 507203, among its spare parts.

  • global.sennheiser-hearing.com Tier A · Manufacturer

    Sennheiser identifies article 507203 as genuine replacement earpads and explicitly includes HD 458BT in the compatible-model list.