Horiba ABX O-Ring Replacement – Pentra 400 / C400 (P/N 1228086583)

What is it:

The Horiba ABX O-Ring (P/N 1228086583) is a genuine HORIBA replacement sealing O-ring for the ABX Pentra 400 / Pentra C400 clinical chemistry analyzer. It's a service/wear part.

What it's used for:

The O-ring forms a tight seal in the analyzer's fluidic system so it can move precise liquid volumes without leaking or losing pressure. In HORIBA's parts listings this O-ring is specified for the reagent syringe (P/N 1228078955), where the seal lets the syringe draw and dispense exact reagent volumes. Over time any such seal hardens, wears, and loses its grip — which shows up as volume errors, dispensing imprecision, drips, or fluidics faults. Replacing the O-ring restores a tight seal and accurate metering, and it's a routine, low-cost part to keep on hand so a worn seal never sidelines the analyzer.

If you need this O-ring for a location other than the reagent syringe, message us with your analyzer model and where it's going and we'll confirm fit before you order.

What's included:

• O-ring replacement for the Pentra 400 / C400 (sold each)
• Manufacturer P/N: 1228086583
• Genuine HORIBA service part
• Specified by HORIBA for the reagent syringe (P/N 1228078955)

Compatible analyzer:

• ABX Pentra 400 (Pentra C400) Clinical Chemistry Analyzer

This O-ring is for the HORIBA ABX Pentra 400 / C400. O-rings used on other HORIBA analyzers (for example, the Pentra 80 and Micros 60) are different parts with different P/Ns. Confirm your analyzer model before ordering. Not for use with non-HORIBA instruments.

Shipping note:

Contact us before ordering if you have a deadline — we'll confirm availability upfront so you know exactly when it'll arrive. Non-returnable once shipped.

Why labs order from Transperify:

• ✅ Genuine HORIBA ABX part, correct P/N guaranteed
• ✅ Transparent pricing — no login required to see cost
• ✅ Competitively priced (typically below major distributor list pricing)
• ✅ Fast, reliable U.S. fulfillment
• ✅ Easy reorder for recurring Pentra 400 service parts

👉 Add to cart above, or browse our full [Horiba ABX Pentra catalog] for more parts, reagents, and consumables.

Questions about compatibility or your reorder? 📩 customersupport@transperify.com

FAQs:

What is this O-ring used for?

It's a sealing O-ring for the HORIBA ABX Pentra 400 / C400 fluidic system. HORIBA's parts listings specify it for the reagent syringe (P/N 1228078955), where it keeps the syringe sealed so it dispenses precise reagent volumes. Like any seal, it's replaced when it hardens, wears, or leaks.

Which analyzer is P/N 1228086583 compatible with?

The HORIBA ABX Pentra 400 / Pentra C400 clinical chemistry analyzer. O-rings for other HORIBA analyzers are different parts.

Is this only for the reagent syringe?

The reagent syringe is the application HORIBA's parts listings call out for this O-ring. If you need an O-ring for another point in the Pentra 400's fluidics and aren't sure whether this is the right one, send us your analyzer model and the location, and we'll confirm the correct part before you order.

How do I know when to replace it?

Common signs of a worn O-ring include volume errors, dispensing imprecision, visible drips or leaks, and fluidics or pressure warnings. Because it's inexpensive, many labs replace it on a preventive-maintenance schedule and keep a spare on hand.

Is this a genuine HORIBA part?

Yes. This is a genuine HORIBA ABX service part, P/N 1228086583 — the same part number distributed through major channels.