The Wacker Neuson Pressure Switch is a genuine OEM component designed for the TH627 indirect-fired air heater. Sourced directly from Wacker Neuson, this part carries the same specifications as the switch installed at the factory, ensuring correct operation within the heater's control circuit. If your TH627 is failing to ignite, shutting down unexpectedly, or not responding correctly to airflow conditions, a faulty pressure switch is a common cause — and this is the direct OEM replacement.
Key Features
- Genuine OEM Switching Accuracy — Manufactured to exact pressure-threshold specs, ensuring the switch opens and closes at the correct differential pressure for reliable ignition sequencing.
- Direct Drop-In Replacement — Matches the original mounting configuration and electrical connections on the TH627, allowing straightforward swap-out during service.
- Confirmed TH627 Fitment — Verified against Wacker Neuson spare parts list 418-02 for the TH627 indirect-fired air heater series.
- Protects Burner System Integrity — A correctly functioning pressure switch prevents the burner from firing under unsafe airflow conditions, keeping the heating cycle within designed operating parameters.
- Fuel System Safety Relevance — As part of the heater's safety interlock circuit, this switch must meet precise actuation specs; an out-of-spec or failed switch can cause lockout faults or unsafe burner operation.
The pressure switch in an indirect-fired air heater monitors airflow through the combustion chamber before allowing the burner to ignite. When the blower reaches sufficient speed and airflow, the switch signals the control board that conditions are safe to proceed with ignition. If the switch fails — either stuck open or stuck closed — the heater will either refuse to start or, in a closed-failure scenario, attempt to fire without confirming adequate airflow, triggering a safety lockout. Replacing a worn or failed pressure switch restores proper sequencing and keeps the TH627 operating safely and efficiently.
Part Details
| Part Number | 1000153692 |
|---|---|
| Brand | Wacker Neuson |
| Part Type | Genuine OEM |
| Description | Pressure Switch |
Compatibility & Fitment
| Name | Model | Machine Number |
|---|---|---|
| SPARE PARTS LIST 418-02 / TH627 | TH627 (418-02) | 1000362623 |
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.
