
The SUNSOUL RG15 is a grommet (rubber gasket/seal) for steel rim valves on heavy-duty trucks and buses. The grommet is the rubber piece that sits between the metal valve and the rim: it seals the rim hole to prevent air leaks and isolates the valve from the metal. It is a high-turnover consumable in truck tire service, which is why it comes in large bulk packs (your proforma includes 2,500 pieces).
It is designed specifically for the TR573 series "Brass Clamp-In" valves (screw-on brass valves) used in trucks and buses, compatible with steel rims that have a Ø15.7 mm (0.625″) valve hole.
| Type | Used with | Assembly components | |
|---|---|---|---|
| Grommet de caucho (Rubber grommet) | TR573 series Brass Clamp-In valves for truck and bus | TR572, TR573, TR574, and variants (rim hole Ø15.7 mm) | Washer RW8, Grommet RG15, Hex Nut HN13, Core 9002, Cap DT |

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