The Multiquip EM69300001 Radiator Cap is a genuine OEM Radiator Cap designed for a range of Multiquip and Whiteman equipment, including Mayco concrete pump models C30HDN and C30HDNI, ride-on roller screeds WRSPUDF and WRS5200, and Whiteman ride-on power trowels STXD6i and HTXD6i. As a direct OEM replacement sourced through Multiquip's authorized parts network, EM69300001 is built to the same specifications as the cap that shipped with your machine. Verify your model code against the fitment list before ordering to ensure a correct match across this broad equipment range.
Key Features
- Correct Pressure Rating for the Cooling System — Matched to the OEM-specified pressure threshold for each fitted model, ensuring the cooling system holds and releases pressure exactly as designed.
- Genuine OEM Construction — Manufactured to Multiquip's original material and sealing specifications, so the cap seats properly on the radiator neck without improvised adaptation.
- Broad Cross-Family Fitment — Confirmed for Mayco concrete pumps (C30HDN, C30HDNI), ride-on roller screeds (WRSPUDF, WRS5200), and Whiteman ride-on power trowels (STXD6i, HTXD6i).
- Coolant Retention and Overflow Control — A correctly functioning radiator cap prevents coolant loss and overheating; a failed or worn cap leads to pressure drop, boil-over, and potential engine damage.
- Direct OEM Part Number Reference — Part number this part matches Multiquip's own parts catalog, eliminating guesswork when cross-referencing against service documentation or repair orders.
A radiator cap does more than seal the cooling system — it actively regulates pressure inside the radiator, raising the boiling point of the coolant so the engine can operate safely under load. When pressure builds beyond the rated threshold, the cap's relief valve opens to divert coolant to the overflow reservoir, then draws it back in as the system cools. A cap that fails to hold pressure or seal correctly causes coolant to escape, the system to run at reduced efficiency, and the engine to reach dangerous operating temperatures far sooner than it should.
Part Details
| Part Number | 69300001 |
|---|---|
| Brand | Multiquip |
| Part Type | Genuine OEM |
| Description | Radiator Cap |
Compatibility & Fitment
| Name | Model |
|---|---|
| Mayco Pumps | C30HDN |
| Mayco Pumps | C30HDNI |
| Ride-On Roller Screeds | WRSPUDF |
| Whiteman Ride-On Power Trowels | STXD6i |
| Mayco Pumps | C30HDNI Precision |
| Mayco Pumps | C30HDNI Zenith |
| Ride-On Roller Screeds | WRS5200 |
| Whiteman Ride-On Power Trowels | HTXD6i |
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.
