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

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.