• Two glossy, dark black rubber O-rings resting diagonally on a clean, solid white background, showing the shiny surface texture of the Marantz TT-15S1 turntable counterweight seals.
  • High-definition technical explosion diagram of a turntable tonearm assembly on a solid white background. Various components are numbered, featuring a prominent red line pointing to number 15, which highlights the O-ring seal placement inside the counterweight assembly.
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Marantz TT-15S1 O-Ring For Contra Weight

Marantz TT-15S1 O-Ring For Contra Weight

£8.95
£8.95
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Marantz TT-15S1 O-Ring for Counterweight (Set of 2)

Product Overview

Is your turntable's tracking force slipping or shifting out of place? Restore the factory-precision performance of your high-end audio setup with the Genuine Marantz TT-15S1 Counterweight O-Ring Replacement Set.

Designed specifically to provide the necessary friction and decoupling for the tonearm assembly, these premium rubber O-rings ensure your counterweight stays firmly dialled in. Over time, original rubber seals can dry out, crack, or lose their elasticity, compromising your tracking accuracy and sound quality. This brand-new, exact-spec replacement set brings your audiophile gear back to its peak performance.

Key Features & Specifications

  • Premium Quality: Brand-new, high-durability rubber formulation for long-lasting tension.
  • Exact Fit: Manufactured to original factory dimensions for smooth, slip-free counterweight adjustments.
  • Complete Set: Sold as a pack of 2 O-rings to completely refresh your tonearm setup.
Feature Specification
Manufacturer Marantz
Manufacturer Part Numbers (MPN) 90M31BW353010, SS-TT15/015
Condition Brand New
Pack Size 1 Pack (Contains 2 O-Rings)
Exploded View Location Part No. 15

Guaranteed Compatibility

This genuine replacement part is fully compatible with the following regional variations of the Marantz premium turntable line:

  • United Kingdom (UK Model): TT15S1/N1M — Barcode/EAN: 4951035904848
  • Europe (EU Model): TT15S1/T1M — Barcode/EAN: 4951035904855

Technical Note: In the official Marantz technical service manual and exploded assembly diagram, this item corresponds directly to Location No. 15 on the tonearm assembly schematic.

Why Replace Your Turntable's Counterweight O-Rings?

The counterweight (or contra-weight) is crucial for setting the exact vertical tracking force (VTF) of your phono cartridge. If the internal O-rings are degraded, the weight may sag, wobble, or subtly move during playback. Replacing them eliminates micro-vibrations and stabilises your tonearm, protecting your vinyl collection from uneven groove wear and ensuring pristine audio reproduction.

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