Multiquip EE48594 Muffler 2 Pass Box Cummins QST30-G5

The Multiquip EE48594 is a genuine OEM Muffler 2 Pass Box Cummins QST30-G5 designed for QST30-G5 powered equipment. Sourced directly from Multiquip, this replacement muffler is built to the exact specifications of the original unit — ensuring a proper fit and correct exhaust flow characteristics for your machine. If you are servicing or restoring a QST30-G5 generator unit, the part is the correct OEM-specified component for this application. DHS Equipment supplies this part as an authorized Multiquip OEM replacement, so you can order with confidence.

Key Features

• Genuine OEM Exhaust Quality — Manufactured to Multiquip's original design specifications, ensuring correct back pressure and exhaust gas flow for the Cummins QST30-G5 engine configuration.
• 2 Pass Box Design — The dual-pass internal chamber construction is matched specifically to the QST30-G5 engine's exhaust output, delivering the correct attenuation performance for this power plant.
• Direct Replacement for QST30-G5 Equipment — Engineered to replace the original muffler on QST30-G5 generator units without modification or fitment guesswork.
• Protects Engine Performance — A correctly functioning muffler maintains proper exhaust back pressure; a cracked, corroded, or failing unit can cause reduced power output, excessive noise, and potential exhaust leaks near the operator area.
• Exhaust Integrity and Operator Safety — As an exhaust system component, proper muffler condition is essential to directing combustion gases safely away from the machine's enclosure and operating personnel.

The muffler is a critical component of the engine's exhaust system, responsible for channeling hot combustion gases away from the engine and reducing exhaust noise to acceptable operating levels. On the Cummins QST30-G5, the 2 pass box design routes exhaust gases through two internal chambers, which dampens sound and manages back pressure to keep the engine running efficiently. When a muffler cracks, corrodes, or becomes blocked, exhaust restriction increases and noise levels rise sharply — both signs that the unit needs immediate replacement to protect engine health and maintain safe operation.

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.