Description
Replacement capstan belt for Sony TC-K444 cassette deck.
This belt is used in the capstan drive section of the cassette mechanism and is suitable for repair or maintenance when the original belt is worn, stretched or degraded.
Compatible brand: Sony
Compatible model: TC-K444
Device type: Cassette deck
Package contents: 2 x Flat Drive Belts
Condition: Brand New - Factory Fresh
Warranty: 5-Year Warranty: Guaranteed against manufacturing defects and material degradation.
Before installing a new belt, clean the pulleys and flywheels to remove any residue left by old or degraded belts.
Note: This is a compatible replacement belt for Sony equipment and is not an original Sony spare part.
Difficulty
Easy to moderate · typically 15–45 min for a first-timer with basic tools.
Tools needed
Phillips & flat screwdrivers, plastic tweezers, isopropyl alcohol (90%+), cotton swabs
Common mistakes to avoid
- Handling the new belt with bare fingers — skin oils cause slipping. Use tweezers or clean hands with alcohol first.
- Not cleaning old belt residue off the pulleys — degraded rubber turns to goo and the new belt will slip. Clean every pulley with isopropyl alcohol before fitting.
- Forgetting the routing — take a photo of the old belt path before removing anything.
- Twisting a flat or square belt during fitting — it must sit flat in the pulley groove.
- Overstretching the belt while installing — walk it gently over the pulleys instead of pulling hard.
If the old belt has melted into tar, remove all residue completely first — a lighter fluid–damped swab works on stubborn goo, followed by isopropyl alcohol. Let everything dry before fitting the new belt.
Stuck mid-repair? Send us a photo of the mechanism — free specialist support by vintage audio repairers.
Sony TC-K444 Capstan Belts for Cassette Deck
Original part, tested before dispatch · covered by our 30-day return guarantee
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* Delivery estimates use working days, Monday to Friday, excluding National Holidays in Portugal.
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