Sennheiser · exact model result

Sennheiser HD 25-C-II

Replacement earpads

3 verified fits3 official (OEM)

✓

Verified matches

These passed our full evidence gate for this exact model.

Official replacement (OEM) ✓ Verified fit

Sennheiser

Part 578879

Official replacement (OEM) ✓ Verified fit

Sennheiser

Part 578880

Fit details and supporting evidence.

Sennheiser

Official replacement (OEM)High confidence

Evidence (1)

spares.sennheiser.com Tier A · Manufacturer
The official HD 25-C-II spare-parts page lists “1 pair foam discs for ear pads,” identifies them as for HD 25, and gives article number 578879.

Sennheiser

Official replacement (OEM)High confidence

Part number: 578880
Mounting: Press-fit; the official replacement instructions show the pad being pressed around the earcup edge until seated.

Evidence (1)

spares.sennheiser.com Tier A · Manufacturer
The official spare-parts page for HD 25-C-II lists HD 25 black velour ear pads, article 578880, as a spare part for that target.

Sennheiser

Official replacement (OEM)Very high confidence

Part number: 578881
Mounting: Press-fit; the official replacement instructions show the pad being pressed around the earcup edge until seated.

Evidence (2)

sennheiser.com Tier A · Manufacturer
Sennheiser identifies part 578881 as HD 25 black ear pads and explicitly includes HD 25-C-II in the suitable-model list.
spares.sennheiser.com Tier A · Manufacturer
The official spare-parts page for HD 25-C-II, article 502104, lists HD 25 black ear pads, article 578881.