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Black O-ring kit for HEATKILLER IV Radeon RX 5700 XT water block

Watercool

Watercool WAT-0230 O-Ring Kit HEATKILLER IV Radeon RX 5700 / XT (79519)

SKU CH-3T4A-HC2RF

Replacement O-ring kit for HEATKILLER IV Radeon RX 5700 and XT water blocks

  • ColorBlack
  • FeaturesThis O-Ring Kit is for HEATKILLER® IV Radeon RX 5700 / XT Wa
  • Complete O-ring kit for HEATKILLER IV Radeon RX 5700 / XT blocks
  • Replaces every seal on the water block in one pack
  • High-quality O-rings deliver long service life with proper coolant maintenance
  • Only needed when original rings are lost or damaged
  • Exact fit for all HEATKILLER IV Radeon RX 5700 / XT variants

Replacement O-Ring Kit for HEATKILLER IV Radeon RX

This kit provides the complete set of replacement O-rings designed specifically for the Watercool HEATKILLER IV water blocks compatible with Radeon RX 5700 and XT graphics cards. It is intended for builders maintaining an existing custom liquid cooling loop who have lost or damaged the original seals during disassembly or cleaning. The kit ensures the correct dimensions and material spec for a proper fit.

High-Quality Elastomer Seals for Long Service Life

The O-rings are manufactured from high-quality elastomer chosen for durability and chemical resistance within a properly maintained cooling system. They seal the critical junctions between the cold plate, terminal block and acrylic top to prevent coolant leaks. The material retains elasticity over long periods, reducing the need for frequent replacement unless physical damage occurs during maintenance.

Leak Prevention Under Standard Operating Pressure

Correctly installed rings maintain a reliable seal at the temperatures and pressures typical of a GPU-only custom loop. The kit includes the specific seal for the connection block interface which is also sold separately. Replacing worn or nicked rings restores the block’s original leak integrity without altering flow characteristics or requiring re-tubing of the loop.

Highlights

  • Complete O-ring kit for HEATKILLER IV Radeon RX 5700 / XT blocks
  • Replaces every seal on the water block in one pack
  • High-quality O-rings deliver long service life with proper coolant maintenance
  • Only needed when original rings are lost or damaged
  • Exact fit for all HEATKILLER IV Radeon RX 5700 / XT variants

Specifications

BrandWatercool
ModelWAT-0230
ColorBlack
FeaturesThis O-Ring Kit is for HEATKILLER® IV Radeon RX 5700 / XT Water Blocks.

Questions about this item

Does this O-ring kit fit the HEATKILLER IV block for Radeon RX 5700 XT?

Yes, the WAT-0230 kit is compatible with all HEATKILLER IV Radeon RX 5700 and XT variants and includes every O-ring used on that cooler.

What physical parts are included for mounting the water block?

The box contains a complete set of replacement O-rings for the HEATKILLER IV Radeon RX 5700 / XT water block, covering every seal the cooler uses.

How are the O-rings installed and what mistake should I avoid?

Remove the old rings, clean the grooves, then seat each new O-ring evenly without stretching or twisting; the most common error is pinching a ring during reassembly, which causes leaks.

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