Multiquip EE46876 Radiator Aftercooler Cummins QST30

The Multiquip EE46876 Radiator Aftercooler Cummins QST30 is a genuine OEM cooling assembly designed for QST30 series equipment. This is a direct OEM replacement sourced through the Multiquip parts network, ensuring the component meets the original engineering specification for your machine. Confirm your model code against the QST30 before ordering to ensure a correct, hassle-free installation.

Key Features

• Genuine OEM Cooling Integrity — Engineered to the original thermal transfer specification for the Cummins QST30, maintaining correct coolant and charge-air temperature management under load.
• Combined Radiator and Aftercooler Assembly — Integrates both the engine coolant radiator and charge-air aftercooler into a single unit, simplifying replacement and ensuring the two systems are correctly matched to one another.
• Direct Fitment for QST30 Series — Built specifically for Multiquip QST30 equipment; mounts to existing brackets and connects to OEM coolant and charge-air plumbing without adaptation.
• Sustained Engine Performance — A functioning radiator and aftercooler keeps cylinder temperatures and intake charge temperatures within spec, protecting against power loss, excessive wear, and thermal shutdown.
• OEM Part Number EE46876 — Use this number to cross-reference against your equipment manual or parts diagram to verify fitment before installation.

The radiator is responsible for dissipating heat from the engine's coolant circuit, preventing overheating during continuous operation. The aftercooler — also called a charge-air cooler — cools the compressed intake air delivered by the turbocharger before it enters the engine cylinders; cooler, denser air improves combustion efficiency and protects internal components from heat stress. When either section of this combined assembly degrades — through leaks, core damage, or blockage — the engine becomes vulnerable to overheating, reduced output, and accelerated wear, making timely replacement critical to keeping the machine operational.

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.