Wacker Neuson 5100048358 Seal Flange P-5100021100

The Wacker Neuson Seal Flange P- is a genuine OEM component designed for the HI1000 and HI1000DGM indirect air heaters. Sourced directly from Wacker Neuson, this part meets the exact material and dimensional specifications of the original, ensuring a proper seat and compression when installed. It is compatible across multiple serial configurations of both the HI1000 and HI1000DGM models, making it a dependable choice for scheduled maintenance or leak-related repairs on these heater units.

Key Features

• OEM-Grade Seal Material — Manufactured to Wacker Neuson's original compression and material specifications, delivering the same sealing integrity as the part it replaces.
• Direct Flange Interface Fit — Engineered to seat flush against the mating flange surface, restoring a leak-free connection without rework or shimming.
• Confirmed Fitment for HI1000 and HI1000DGM Series — Verified for multiple serial configurations of both the HI1000 and HI1000DGM indirect air heaters.
• Prevents Combustion Gas Bypass — A correctly seated flange seal keeps exhaust pathways fully contained, maintaining heater output efficiency and preventing unintended heat or gas escape.
• Combustion System Safety — Integrity of this seal is critical in indirect-fired heater applications; a failed or worn seal can allow combustion gases to migrate outside their intended pathway, making timely replacement essential.

A flange seal creates a gas-tight barrier at the junction between two mating flange faces within the heater's combustion or exhaust system. It prevents hot gases from bypassing the intended flow path, which is essential for maintaining both heating efficiency and safe operation. When this seal deteriorates or fails, you may notice reduced heat output, unusual odors, or visible signs of gas leakage around the flange joint — all indicators that the seal needs immediate replacement.

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.