Multiquip WF2077 Coolant Filter QST30-G5 (Cummins)

The Multiquip WF2077 Coolant Filter QST30-G5 (Cummins) is a genuine OEM coolant filter designed for QST30-G5 series equipment. Sourced directly from Multiquip, this filter meets the exact specifications required by the Cummins QST30-G5 engine to maintain proper coolant chemistry and system integrity. Confirm your model code against WF2077 before ordering to ensure a correct application match.

Key Features

• OEM-Grade Filtration Media — Engineered to the exact filtration rating required by the Cummins QST30-G5 engine, removing contaminants and maintaining coolant additive levels that protect internal engine surfaces.
• Direct-Mount Replacement — Threads directly onto the existing coolant filter mount on QST30-G5 equipment with no adaptation needed, matching the original filter's port size and thread spec.
• QST30-G5 Specific Fitment — Confirmed fitment for QST30-G5 series equipment; always cross-reference WF2077 against your unit's parts documentation to verify compatibility.
• Protects Cooling System Components — A functioning coolant filter maintains proper inhibitor concentration, preventing scale buildup and corrosion in the engine block, radiator, and water pump. A clogged or failed filter accelerates component wear and can lead to overheating.
• Genuine Multiquip OEM Part — Supplied as an authentic Multiquip replacement, ensuring the part meets the same material and performance standards as the original factory-installed filter.

A coolant filter works alongside the radiator and cooling system to remove particulates and replenish supplemental coolant additives (SCAs) that protect metal surfaces from cavitation, corrosion, and scale. In heavy-duty diesel engine applications like the Cummins QST30-G5, maintaining the correct SCA concentration is critical — without it, cylinder liners and water pump seals are vulnerable to rapid deterioration. Replacing the coolant filter at recommended service intervals is one of the most cost-effective ways to extend engine life and prevent unplanned cooling system failures.

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.