Epson ET-8550 Nipple Conversion: Which Manifold, Which Dampers (V2 vs V3), and Do You Need Gaskets?

Question: I'm trying to do a nipple conversion on an Epson ET-8550 and I'm hoping you can point me to the correct BCH listings. I see the nipple conversion kit, but it looks like it might be only the manifold-can you confirm? Also, are V3 dampers still not recommended for the ET-8550? In the nipple conversion kit video it says to stick with V2 dampers, but that video is older now-does that advice still apply? For gaskets, should I use the small-profile or larger ones? I'm mainly trying to replace the manifold and dampers, so I think I only need those parts-can you verify what I should purchase so I don't mix anything up?

Answer: 

1) Is the ET-8550 nipple conversion kit only the manifold?

Yes-the nipple conversion kit is just the manifold (the nipple-style manifold itself). It does not automatically include dampers or other items unless the listing explicitly states otherwise.

Why it matters

A nipple manifold changes the connection method at the head/manifold interface, so it's common for customers to assume it's a "full conversion bundle." In most cases, it's sold as the manifold component only, and you select dampers separately based on fit and your specific build (DTF, DTG, pigment, etc.).

2) V2 vs V3 dampers for the ET-8550: is V2 still the safer choice?

As of what we've seen in real-world builds: V2 is still the safer, more proven choice for the ET-8550, and it's what I personally use.

That said, your observation is correct: V3 is a little longer, and some customers report they can fit it in. The issue isn't that V3 "doesn't work"-it's that the ET-8550 carriage space is tight, so even small dimensional differences can lead to:

• dampers rubbing the cover or frame

• tubing getting pinched during carriage travel

• unusual stress on the manifold ports

• intermittent ink starvation (especially if a line kinks only at certain carriage positions)

So the practical guidance is:

• If you want the most predictable fit: go V2

• If you're experienced and willing to confirm clearance carefully: some users do make V3 work, but it's more "build-dependent"

3) Do you need gaskets for this conversion? Small-profile or large?

If you convert to nipples, you won't need gaskets.

Why

Gaskets are typically used in setups where you're relying on a gasketed interface to create a seal between parts (often on certain manifold/damper connection styles). With a nipple-style conversion, the seal is handled through the nipple connection and the damper interface design, not a separate gasket layer-so buying gaskets usually becomes unnecessary for this specific approach.

4) If you're only replacing the manifold and dampers, what do you actually need?

For your stated goal-replace the manifold and dampers-you typically only need:

1. ET-8550 nipple manifold (the conversion manifold)

2. A matching set of dampers (V2 recommended for fit consistency)

3. (Usually optional) tubing management items if your existing lines are stained, hardened, or cut short during the swap

Because you asked specifically about "those three things," here's the key point:

• If you're doing nipple conversion, the "third thing" is not gaskets (you can skip them).

• Most customers instead benefit from confirming they have the right damper type + enough correct tubing length + no pinched routing after installation.

5) A quick caution that prevents most post-install problems

Even when the parts are correct, the ET-8550 is sensitive to mechanical fitment. After you install the manifold and dampers, the most common failure points are:

• Tubing bends too tight → pinched line → missing colors / starvation

• Damper body touches the frame or cover → vibration, micro-leaks, or intermittent flow

• Air introduced during swap → temporary dropouts and cleaning-cycle "spiral," especially with white ink setups

So if you go V2 and keep line routing clean with gentle curves, you're already avoiding the majority of headaches people run into.

Addressing printer issues can be a complicated affair due to the hands-on nature of the problems. So, we're not able to provide remote troubleshooting, suggestions, or support for printer repairs. We offer an in-person evaluation and repair service via our local diagnostic facility, Printer Repair Service (https://bchtechnologies.com/printer-repair-service). Given the high demand, we operate on a first-come, first-served basis, so it might take a few weeks before we can get your printer scheduled for drop-off. Our services are structured to repair either a whole printer or specific parts, with clear instructions on how to proceed. However, we acknowledge that our rates aren't the most economical. Thus, we highly recommend that you resort to self-help via online research. You can start by checking out YouTube or visiting our YouTube channel's homepage, BCH Technologies on YouTube (https://youtube.com/@bchtechnologies). Look for specific videos using the search icon next to "About" on the right-hand side of the menu bar. I receive dozens of queries every day asking about videos for specific topics. Having created videos over the past nine years, it's challenging to remember every single one. Therefore, using YouTube's search function would be most efficient. Plus, YouTube might suggest relevant videos from other channels that could assist you.

Thanks again for reaching out, and I really appreciate you trying to get the correct parts before placing your order. I hope this clears up the confusion: the nipple kit is the manifold, V2 is still the safest recommendation for the ET-8550, and gaskets aren't needed once you go nipple-style.