






🚽 Upgrade your flush game with silent precision and eco-smart efficiency!
The KOHLER GENUINE PART GP1138930 Silent Fill Toilet Fill Valve Kit delivers quiet, efficient tank refilling with adjustable height and multiple fill-rate inserts for water conservation. Designed by Kohler engineers, this genuine part ensures optimal performance and compatibility with various Kohler toilets, backed by a strong customer rating and easy top-access adjustments.




| ASIN | B003MH314U |
| ASIN | B003MH314U |
| Batteries Included? | No |
| Batteries Required? | No |
| Best Sellers Rank | #27,697 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #48 in Toilet Flush Valves |
| Color | Colors may vary |
| Customer Reviews | 4.6 4.6 out of 5 stars (4,891) |
| Customer reviews | 4.6 4.6 out of 5 stars (4,891) |
| Date First Available | 16 August 2012 |
| Date First Available | 16 August 2012 |
| Finish | No Finish |
| Included components | valve, inserts, fill hose, and assembly hardware |
| Is Discontinued By Manufacturer | No |
| Item Package Quantity | 1 |
| Item Weight | 1 g |
| Item model number | GP1138930 |
| Item model number | GP1138930 |
| Manufacturer | Kohler |
| Manufacturer | Kohler |
| Material | Metal Plastic |
| Part number | GP1138930 |
| Pattern | Kit |
| Product Dimensions | 33.02 x 8.89 x 7.62 cm; 1 g |
| Product Dimensions | 33.02 x 8.89 x 7.62 cm; 1 g |
| Shape | shape |
| Size | 12.5" x 3.5" x 3" |
| Special Features | Adjustable |
| Specification met | RoHS, PED, MD |
| Style | Plumbing Overstock |
C**L
The connector (7/8 ballcock) is special and not listed in the documentation. In Singapore this is not common and I had to order an special braided hose with the correct connector. But the fill valve is well built, easy to adjust the fill levels from the top knob.
F**N
lasted 6 weeks
J**I
The Kohler Silent Fill Toilet Valve Kit is a reliable replacement part that made fixing my toilet much easier. It’s designed to replace an old or worn‑out fill valve on Kohler toilets, and the “silent fill” feature noticeably reduces the usual rumbling or loud refill noise after flushing. Installation was straightforward — I followed the instructions, and it fit well without any complicated plumbing tools. The height is adjustable so it can match the tank’s water level properly, and the adjustment helped me get the right fill rate easily. As an OEM (original equipment manufacturer) part, it feels solid and durable. Most users report that it works quietly and reliably after installation, though there are occasional reports of adjustment being a little tricky at first. Bottom line: If your toilet is noisy, runs constantly, or isn’t filling right, this silent fill valve kit is a practical and affordable way to restore smooth, quiet performance. Great value for a basic but essential toilet repair part.
F**S
Repuesto original, precio bajo, excelente calidad, instalación facil, sin herramientas. Funciona perfecto.
D**O
Works Great. Easy to install. No leaks
Trustpilot
3 days ago
2 weeks ago