The Multiquip EM16491 Nipple Muffler 1-1/4 Closed is a genuine OEM replacement part designed for the ST30 swing tube concrete pump. Sourced directly through Multiquip's authorized parts network, EM16491 meets the original engineering specifications for this application. This fitting is a direct swap for the original component on ST30 units, keeping your pump's exhaust or fluid routing properly sealed and functioning as intended.
Key Features
- Genuine OEM Construction — Manufactured to Multiquip's original material and thread specifications, ensuring the correct closed-end configuration for the ST30 application.
- Exact Thread and Sizing Match — The 1-1/4 closed nipple profile installs directly into the original port without rework or adapters, maintaining a secure, leak-free connection.
- ST30 Fitment Confirmed — Verified fitment for the Multiquip ST30 swing tube concrete pump series, so you can order with confidence.
- Maintains Flow and Sealing Integrity — A correctly fitted closed nipple prevents pressure loss, fluid intrusion, and contamination at the port — issues that a damaged or missing fitting can quickly cause in a working pump.
- Long-Term Corrosion Resistance — Built from materials suited to the demanding environment of concrete pump operation, where moisture, vibration, and chemical exposure are constant factors.
A muffler nipple is a short threaded fitting used to connect, cap, or route fluid or exhaust passages within the pump assembly. The closed-end design on this part seals off an unused port or terminates a line, preventing leaks and keeping internal pressure where it belongs. When this fitting is cracked, cross-threaded, or missing, the affected port is left exposed — leading to fluid loss, contamination, or pressure drop that can compromise pump output and component life.
Part Details
| Part Number | EM16491 |
|---|---|
| Brand | Multiquip |
| Part Type | Genuine OEM |
| Description | Nipple Muffler 1-1/4 Closed |
Compatibility & Fitment
| Name | Model |
|---|---|
| ST30 | ST30 |
Verify Before You Order
Fitment is machine-number and revision-specific; always confirm your model and serial number against the fitment list.
Why Buy From DHS Equipment
Every part is verified against the manufacturer's part number before it ships, so what you order is what arrives. We carry parts from leading OEM brands and our own DHS Quality Parts line of professional aftermarket components. Need help finding the right part? Our team is available to confirm compatibility whenever you need it. Orders are processed fast to keep your jobs on track. We don't just sell parts. We keep you jobsite ready.
Questions? Contact our team at [email protected] or 866-611-9369 — DHS Equipment is here to help you maintain peak performance.
