JBL S300 S400 Replacement Ear Pads — Black Leather

About this pair

Cracked or flattened cushions on JBL Synchros S300, S400, or S400BT headphones change the seal and the hygiene of every commute. These JBL S300 S400 replacement ear pads — black leather restore a smooth leather look with an easy-clean surface, and the kit is sold as a matching-pair black S300 S400 refresh for the shared black S300 S400 mount. When the rim splits or the face goes shiny and sticky, sound still plays, but comfort and isolation drop first.

Feature: black leather-look over-ear pads cut for Synchros cups. Benefit: wipeable black S400 hygiene without machine-washing. Advantage: you keep the Synchros sound signature while replacing only the worn cushions. Evidence: the listing covers S300, S400, and S400BT; SKU 173987 is black, while 173988 is the gray pad alternative — confirm the worn cup cut and pick the color you want. Choosing black keeps an original-look black Synchros profile that matches most dark headbands and cables.

Install is a peel-and-stretch S400 black swap. Peel the old pad, stretch the new black leather-look rim over the cup, and confirm the mount type before forcing a fit. Seat the rim evenly so the cushion faces the ear without twisting. Aftermarket S400 black vs OEM is simple — these are aftermarket replacements unless a listing marks OEM. Work one cup at a time so you always have a reference for how deep the rim should sit on the shell.

Commuters and everyday listeners searching for jbl s300 s400 replacement ear pads black, black leather ear pads for jbl s300 s400, or ear pads compatible with s300, s400, s400bt get a focused cushion kit. It is not the gray pad SKU 173988, and it is not the gray headband 173990 — only replace the top strap if that part is worn. This listing stays on Synchros S400 black over-ear pads and S400BT black leather-look cups. Separating pads from headband SKUs prevents ordering the wrong spare when both parts look worn in photos.

Everyday ear pads for jbl s300 s400 should survive workouts and commute sweat on the outer face. A damp cloth on the smooth black surface is usually enough. When cushions are cracked on an S400BT black refresh, ordering a pair restores original-look black Synchros styling without buying a new headset. Avoid soaking the foam core; surface cleaning is the conservative habit that keeps the leather-look face usable longer between gym bags and transit seats.

Shoppers comparing jbl s300 s400 ear pads price against a full replacement headset will see this aftermarket cushion kit as the smaller spend. Order an S300 S400 S400BT black pad pair when the foam has collapsed or the leather-look face has split, and keep Synchros listening comfortable for the next round of calls and playlists. A matching pair matters: mixed old and new cushions rarely seal the same, so refresh both cups together. After install, wear the headset for a short seated check to confirm both rims seated evenly before a long commute. Keep the old pads until the new pair is fully seated so you can compare rim depth if needed.