Multiquip 1522103490 Freeze Plug V2203

The Multiquip 1522103490 Freeze Plug V2203 is a genuine OEM component designed for DLW400ES series diesel light welders. Sourced directly from Multiquip, this freeze plug is manufactured to the exact specifications required by the V2203 engine block, ensuring a proper seal without modification. It is confirmed to fit DLW400ES, DLW400ESA, and DLW400ESA1 models. Keeping this plug in serviceable condition is essential to maintaining coolant integrity and protecting the engine from overheating or freeze-related damage.

Key Features

• Genuine OEM Sealing Integrity — Manufactured to the exact material thickness and diameter spec required by the V2203 engine block, ensuring a leak-free press fit.
• Direct Engine Block Fitment — Seats directly into the V2203 block coolant passage opening, matching the original installation point with no reworking of the bore.
• Confirmed Compatibility — Verified fitment for DLW400ES, DLW400ESA, and DLW400ESA1 diesel light welder models.
• Coolant System Protection — A properly seated freeze plug maintains sealed coolant passages, preventing seepage that can lead to overheating, corrosion, or engine damage during operation.
• Freeze and Pressure Resistance — Designed to handle the thermal cycling demands of a working diesel engine, holding firm under normal coolant pressure and temperature fluctuation.

A freeze plug — also called a core plug or expansion plug — is a disc pressed into an opening in the engine block left over from the casting process. Its primary role is to seal those coolant passages and, in extreme cold, to pop out under pressure from expanding coolant rather than allowing a cracked block. When a freeze plug corrodes, loosens, or fails, coolant leaks into the surrounding area, causing the engine to lose cooling capacity and run hot. Replacing a failed freeze plug promptly with the correct OEM part protects the engine block from further damage and restores the cooling system to full function.

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.

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