The Multiquip 2003 Radiator Cap is a genuine OEM component designed for the C30HDGA concrete pump. Sourced directly from Multiquip, this cap is built to the exact pressure rating required by the C30HDGA cooling system, ensuring proper function without improvised substitutes. If your cooling system is losing pressure or running hotter than normal, a failed or worn radiator cap is often the first place to look — and part number 2003 is the correct OEM replacement for this machine.
Key Features
- OEM-Correct Pressure Rating — Engineered to hold the precise system pressure specified for the C30HDGA engine cooling circuit, preventing coolant loss and overheating.
- Direct-Fit Replacement — Designed to seat and seal on the factory radiator filler neck with no adaptation needed, maintaining the integrity of the cooling system.
- Confirmed Fitment — Verified for the Multiquip C30HDGA concrete pump, so you can order with confidence.
- Cooling System Integrity — A properly sealing radiator cap raises the boiling point of coolant under pressure, protecting the engine from heat damage during heavy pumping cycles.
- Fuel-System Adjacent Safety — An incorrect or failing cap can cause pressurized coolant to vent unexpectedly; the correct OEM cap ensures the system vents and seals as designed.
The radiator cap is a pressure-regulating valve that seals the cooling system and maintains the correct operating pressure to raise the coolant's boiling point. When the system exceeds the cap's rated pressure, it opens to release excess pressure into the overflow reservoir, then draws coolant back as the engine cools. When a radiator cap fails — losing its seal or releasing at the wrong pressure — the engine becomes vulnerable to overheating, coolant boilover, and long-term thermal damage, particularly under the sustained heavy loads of concrete pumping operations.
For fitment questions or help confirming this is the right part for your machine, contact the DHS Equipment team directly.
Part Details
| Part Number | 2003 |
|---|---|
| Brand | Multiquip |
| Part Type | Genuine OEM |
| Description | Radiator Cap |
Compatibility & Fitment
| Name | Model |
|---|---|
| Mayco Pumps | C30HDGA |
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.
