The Wacker Neuson Water Pump Seal is a genuine OEM component designed for the HIF 690 Flameless Air Heater series, including Kubota engine-equipped models. Sourced directly from Wacker Neuson, this seal matches the original part specification for a proper, leak-free fit within the water pump assembly. It is confirmed compatible with HIF 690 units across multiple build configurations, so verifying your machine's model number before ordering is always recommended.
Key Features
- OEM-Grade Sealing Material — Manufactured to the same material and compression tolerances as the original, ensuring the water pump circuit stays properly sealed under operating temperatures and pressures.
- Drop-In Replacement — Engineered to the same dimensions as the factory-installed seal, so it seats correctly into the water pump housing without rework or adaptation.
- HIF 690 Series Fitment — Compatible with HIF 690 Flameless Air Heater models, including Kubota engine variants, covering a broad range of build configurations within the HIF 690 family.
- Prevents Coolant Loss — A failed or worn pump seal allows coolant to escape the closed loop, disrupting the heat exchanger's ability to produce consistent warm air output — this replacement restores that integrity.
- Fluid System Safety — A properly sealed water pump circuit prevents coolant from contacting electrical components or combustion-adjacent surfaces, maintaining safe heater operation in enclosed or confined work environments.
The water pump seal forms a pressure-tight barrier within the heater's coolant circulation system, preventing fluid from leaking past the pump shaft or housing interface. In a flameless air heater like the HIF 690, the water pump continuously circulates heated coolant through the heat exchanger to produce warm air output — a compromised seal disrupts that flow and can lead to coolant loss, overheating, or reduced heating performance. Replacing a worn or damaged seal promptly keeps the coolant circuit operating at the correct pressure and protects the pump from further wear.
Part Details
| Part Number | 1000118336 |
|---|---|
| Brand | Wacker Neuson |
| Part Type | Genuine OEM |
| Description | Water Pump Seal |
Compatibility & Fitment
| Name | Model | Machine Number |
|---|---|---|
| HIF 690 Flameless Air Heater | HIF690 | 5100017599, 5200021915 |
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.
