• top-down, studio shot on a solid white background showing two black rubber replacement belts for a cassette deck. On the left is a large, thin, flat capstan belt forming a loose, irregular oval shape. On the right sits a much smaller, square-cut rubber counter or assist motor belt forming a perfect circle. Both belts are matte black with a clean texture.
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Yamaha KX-670, KX-690 Belt Kit

Yamaha KX-670, KX-690 Belt Kit

£6.00
£6.00
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Product Overview

Restore your vintage Yamaha tape deck to its original peak performance with this premium replacement belt kit manufactured by Perform Research. Engineered in Germany to exact OEM specifications, this kit is the perfect solution for servicing discontinued factory parts.

Over time, original rubber belts stretch, dry out, or turn to residue, leading to playback speed fluctuations (wow and flutter) or complete mechanical failure. This high-quality kit ensures your audio remains crisp, stable, and perfectly timed.

Why Choose Perform Belts?

  • OEM Quality Solution: Original factory belts have been officially discontinued by Yamaha; this kit restores your equipment to peak standard.
  • Engineered Excellence: Specialised components are developed with improved application standards to meet or exceed original factory specs.
  • Superior Materials: Delivers precise matching elasticity, grip, and longevity for reliable long-term playback.

Kit Contents

Each kit contains the exact internal drive belts required for a complete transport overhaul:

  • 1 x Flat Section Capstan Belt (MPN: CX674310)
  • 1 x Square Section Reel Belt (MPN: CX674320)
💡 Pro Installation Tip for Best Performance

Before installing your new belts, it is critical to thoroughly clean the entire belt path surface (pulleys and flywheels).

  • Use isopropyl alcohol (rubbing alcohol) and a cotton swab to remove old, invisible rubber residue.
  • Failing to clean the path can contaminate the new rubber, leading to premature slippage and reduced lifespan.

Product Specifications

Compatible Brand Yamaha
Compatible Models KX-670, KX-690 Stereo Cassette Decks
Manufacturer Perform Research
Country of Manufacture Germany
Condition Brand New
Product Number 17130800
EAN / Barcode 3861167022710

Order your Perform Replacement Belt Kit today and give your Yamaha cassette deck a new lease on life!

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Disassembly procedure

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