Epson C13T09D498 (also known as Epson 101 Yellow or T09D4) is an original Yellow Ink Bottle designed as the final color component of the high-yield 101 series for specific Epson EcoTank (Ink Tank System) printers.
 
Designed for high capacity, contributing to a combined color yield of up to 6,000 pages (A4, 5% coverage) across the color set, depending on the printer model.
Used in specific EcoTank models that utilize the high-yield 101 series (Pigment Black + Dye Color combination), such as: L4150, L4160, L6160, L6170, L6190, L6270, L6290, ET-3750, and ET-4750. (Always verify against your specific printer model.)