Multiquip EM2108 Spray Tank Cap

The Multiquip EM2108 Spray Tank Cap is a genuine OEM replacement designed for a wide range of Multiquip and Whiteman ride-on power trowels and Mayco concrete pumps, including HTX44, STX55, HHN, JWN, and HTN series equipment. As a direct OEM part, EM2108 is manufactured to the same specifications as the original component, ensuring a correct, secure fit on every compatible machine. DHS Equipment sources this cap directly through authorized channels, so you can be confident you are receiving an authentic Multiquip part. Confirm your model code against the fitment list before ordering to ensure compatibility.

Key Features

• Genuine OEM Construction — Manufactured to the same material and thread specifications as the original cap, ensuring a leak-free seal on the spray tank.
• Direct-Fit Replacement — Threads directly onto the spray tank port with no modification, restoring the tank's sealed system immediately upon installation.
• Broad Fitment Coverage — Compatible with HTX44, STX55, HHN, JWN, HTN, STX, and BHN series trowels, as well as Mayco C30HDZ, C30HDN, LS300, and LS300P concrete pumps.
• Maintains Spray System Integrity — A properly fitted cap keeps the spray tank pressurized and contamination-free, allowing consistent water or release-agent distribution across the trowel deck or pump system.
• Prevents Spill and Contamination Risk — A worn or missing spray tank cap can allow fluid to escape or debris to enter the tank, compromising spray performance and creating slick surface hazards around the machine.

The spray tank cap seals the fluid reservoir used to dispense water or form-release agent onto the trowel blades or concrete pump components during operation. A secure cap maintains the pressure and cleanliness of the tank contents, which is essential for consistent, controlled fluid delivery. When the cap is cracked, stripped, or missing, fluid can leak during transport or operation, introducing contamination into the tank and disrupting the spray system's effectiveness.

| Fits: HTX44K4, HTX44K5, HTX44Y4, HTX44Y5, HTXD6i, STX55J6, STX55Y6, STXD6i, STXDF, HHN31V, HHN31VTCSL5, HHN34TVD, HHNG4, HHNG5, HHXDF4, HHXDF5, HTN-31VTCSL5, HTN27KTCSL, HTN28KTCSL, JWN24HTCSL, JWN24HSCSL, JWN, BHN, BRT, BTO20HTCSL, JTN, JTO, JRT, HRT, HTO-31VTCSL5, EHHNK5, HTH44T, HTH-SERIES, STH, C30HDZ, C30HDN, C30HDNI, LS300, LS300P

For fitment questions or help confirming compatibility for your specific machine, contact the DHS Equipment parts team.

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.