Epson 774 Black + 664 Color EcoTank Ink Bottles – 4-Pack (140 ml + 70 ml) Compatible

Epson 774 Black + 664 Cyan/Magenta/Yellow Ink Bottle 4-Pack at a glance: a set of 4 ink bottles: Epson 774 Black (T774120-S), 140 ml; Epson 664 Cyan (T664220-S), 70 ml; Epson 664 Magenta (T664320-S), 70 ml; Epson 664 Yellow (T664420-S), 70 ml. Newly made in the USA to match the original ink. Fits the Epson EcoTank ET-3600, ET-4550 and ET-16500. Backed by a 1-year 100% satisfaction guarantee; orders by 4 PM ET (Mon–Fri) ship the same day from Long Island, NY.

Key Facts

What's in the Box

• 1 × Epson 774 Black (T774120-S) compatible ink bottle — 140 ml
• 1 × Epson 664 Cyan (T664220-S) compatible ink bottle — 70 ml
• 1 × Epson 664 Magenta (T664320-S) compatible ink bottle — 70 ml
• 1 × Epson 664 Yellow (T664420-S) compatible ink bottle — 70 ml

Compatible Printers (3 models)

• Epson Expression ET-3600
• Epson WorkForce ET-4550
• Epson WorkForce ET-16500

Don't mix these up: This set pairs Epson 774 pigment black with Epson 664 colors, the combination used by the ET-3600, ET-4550 and ET-16500. The ET-2500–ET-2650 and ET-4500 use 664 black instead.

Not sure? Look up your exact model on our Find Ink by Printer page, or contact us and we'll confirm the right ink for you.

Part Numbers & Also Known As

This ink bottle replaces or is also searched for as: Epson 774 664 combo, Epson 774 664 ink set, 91029IPK, T774120-S, T664220-S, T664320-S, T664420-S

Chips, Printer Messages & Installation

Filling: open the ink tank cover and the cap for one color. Remove the bottle cap and seal, then stand the bottle upright in the matching tank port; the keyed nozzle only fits the right color. The ink flows in and stops automatically when the tank is full. Remove the bottle, close the caps and repeat for the other colors.

After filling: if the printer asks, confirm on the control panel that you filled the tanks. Keep leftover ink capped and upright for the next fill.

Streaks or missing colors: run a nozzle check and head cleaning from the maintenance menu. The print head stays in the printer, so let it rest between cleanings.

Still stuck? See our guide to fixing a cartridge that isn't recognized or contact us and we'll make it right.

Compatible vs. Original Ink Bottles

Original Epson bottles are new from Epson and cost the most. Compatible bottles, like this one, are newly made in the USA to match the original color and fit the same tank ports, at a much lower price. Castle Ink sells compatible ink bottles and toner and remanufactured inkjet cartridges.

Other Options for the Same Printers

• Epson 774 Pigment Black EcoTank Ink Bottle (T774120-S)

Frequently Asked Questions

What is in this pack?

Epson 774 Black (T774120-S), 140 ml; Epson 664 Cyan (T664220-S), 70 ml; Epson 664 Magenta (T664320-S), 70 ml; Epson 664 Yellow (T664420-S), 70 ml.

How many pages will these bottles print?

Epson rates its original 774 black (140 ml) at about 6,000 pages at standard coverage.

Will the printer warn me about non-original ink?

Ink tank printers do not read chips on bottles. After filling, confirm or reset the ink level on the control panel if the printer asks.

Will this void my printer warranty?

No. Under the U.S. Magnuson-Moss Warranty Act, a manufacturer can't void your printer warranty just because you used a third-party or remanufactured supply. If a non-original supply directly caused damage, that specific repair might not be covered.

How long can I store it?

Keep bottles sealed and upright at room temperature, out of direct sunlight, and use within about 12 months of opening.

When will my order ship?

Orders placed by 4 PM ET, Monday through Friday, ship the same business day from Long Island, NY, by USPS (2–5 business days). Expedited 1–2 day delivery is available at checkout, and shipping is free on orders over $50.