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Two black rubber O-rings, one large and one small

Watercool

Watercool WAT-0272 Replacement O-Rings HEATKILLER CPU Rev.3.0 (79250)

SKU CH-5WRS-8XP6S

Set of two black replacement O-rings for HEATKILLER CPU Rev. 3.0 water blocks

  • ColorBlack
  • Features2x O-ring for HEATKILLER® CPU Rev.3.0
  • Maintains leak-free seal with two precision O-rings
  • Direct fit for HEATKILLER CPU Rev.3.0 blocks
  • Includes both large and small ring sizes
  • Durable black elastomer resists coolant degradation
  • Ready-to-install spares prevent downtime during maintenance

Compatible with HEATKILLER CPU Rev.3.0

This pack contains two black replacement O-rings made for the Watercool HEATKILLER CPU Rev.3.0 water block. One large and one small ring are included to seal the critical junctions of the block. They are manufactured by Watercool under part number WAT-0272. The rings restore the original sealing performance when the factory items wear out.

For maintenance of the Rev.3.0 block only

These rings suit owners of a HEATKILLER CPU Rev.3.0 who need to refresh the seals during a loop drain or rebuild. Builders using any other water block, including earlier HEATKILLER revisions, cannot use this kit because the dimensions are specific to the Rev.3.0 design. The product is not a complete water block and adds no cooling capacity on its own.

Two rings: one large, one small

The decisive specification is the inclusion of exactly two O-rings sized for the HEATKILLER CPU Rev.3.0. One ring fits the large channel and the other fits the small channel. If your block requires a different count or different diameters, this kit will not seal the loop.

Highlights

  • Maintains leak-free seal with two precision O-rings
  • Direct fit for HEATKILLER CPU Rev.3.0 blocks
  • Includes both large and small ring sizes
  • Durable black elastomer resists coolant degradation
  • Ready-to-install spares prevent downtime during maintenance

Specifications

BrandWatercool
ModelWAT-0272
Part NumberWAT-0272
ColorBlack
Features2x O-ring for HEATKILLER® CPU Rev.3.0

Questions about this item

Should I choose the large or the small O-ring for my HEATKILLER CPU Rev.3.0?

The pack contains one large and one small O-ring; fit the large ring on the main cold-plate groove and the small ring on the secondary seal position of the Rev.3.0 block.

What does the Rev.3.0 designation tell me once the rings are installed?

Rev.3.0 identifies the exact HEATKILLER CPU block revision these rings are moulded for, ensuring the correct inner diameter and cross-section for a leak-free seat.

Are these rings compatible with any standard G1/4 fitting thread?

No, they are sized only for the proprietary seal grooves on the Watercool HEATKILLER CPU Rev.3.0 water block, not for G1/4 port threads.

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