Multiquip EM20349 Oiler Plug

The Multiquip EM20349 Oiler Plug is a genuine OEM component designed for C30HD series Mayco concrete pumps, including the C30HD, C30HDNI, C30HDN, C30HDG, C30HDZ, and C30HDGA models. As a direct OEM replacement, the EM20349 is manufactured to the same specifications as the original part, ensuring a correct, trouble-free installation on your concrete pump. DHS Equipment stocks this part to help keep your Mayco pump operating at full capacity with zero guesswork on fitment.

Key Features

• Genuine OEM Construction — Manufactured to the original material and thread specification, ensuring the plug seats and seals exactly as intended in the oiler port.
• Direct-Fit Replacement — Matches the original mounting point on C30HD series concrete pumps for a straightforward swap with no modification needed.
• Broad C30HD Series Compatibility — Confirmed fitment across C30HD, C30HDNI, C30HDN, C30HDG, C30HDZ, and C30HDGA Mayco concrete pump models.
• Protects the Lubrication System — A properly seated oiler plug keeps lubricant contained and contaminants out, directly supporting consistent pump drive and bearing life.
• Leak Prevention — A worn or missing oiler plug can lead to lubricant loss and accelerated wear on internal components; this OEM replacement restores proper sealing.

The oiler plug seals the lubrication access port on the concrete pump's drive mechanism, keeping oil or grease contained within the system during operation. Without a properly seated plug, lubricant can leak out and debris can enter, leading to increased friction and premature wear on the pump's internal components. Replacing a damaged or missing oiler plug with the correct OEM part is a straightforward service step that protects the longevity of the entire drive assembly.

For questions about fitment or to confirm this is the right part for your machine, contact the DHS Equipment parts team for assistance.

Part Details

Compatibility & Fitment

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.