Multiquip 1-30005179 Ignition Switch With Preheating

The Multiquip 1-30005179 1- Ignition Switch With Preheating is a genuine OEM component designed for the RX1575 walk-behind roller. Sourced directly from Multiquip, this switch matches the original unit exactly — same connector configuration, same preheating function, and the same fit as the part it replaces. If you're working on an RX1575 and dealing with a no-start condition or a switch that no longer cycles through preheat, this is the correct replacement to restore proper operation.

Key Features

• OEM Ignition Integrity — Genuine Multiquip construction ensures the switch delivers the correct electrical switching sequence and preheat circuit engagement, not just a close approximation.
• Preheating Circuit Included — Incorporates the preheat position critical for cold-start diesel ignition cycles, so the engine fires correctly without bypassing glow plug warm-up.
• Direct Fitment for RX1575 — Engineered specifically for the RX1575 walk-behind roller; installs into the existing switch housing with the original wiring harness connector.
• Electrical Contact Reliability — Designed to handle repeated start cycles without contact degradation, maintaining clean, consistent signal delivery to the ignition and preheat circuits over the machine's service life.
• Ignition System Safety — A faulty ignition switch can prevent clean shutoff or cause unintended electrical faults; replacing with the correct OEM unit restores proper start, run, and stop control of the machine.

The ignition switch is the operator's primary interface with the machine's electrical system — it controls power delivery to the ignition circuit, the glow plug preheat sequence, and the engine shutoff function. On diesel-powered equipment like the RX1575, the preheat position is not optional; it allows glow plugs to reach operating temperature before cranking, which directly affects cold-start reliability and long-term engine health. When the switch wears out or fails internally, symptoms typically include an inability to start, loss of preheat function, or a machine that won't shut down cleanly — all of which put the operator and the job schedule at risk.

DHS Equipment is an authorized Multiquip parts distributor. For fitment questions or help confirming compatibility with your machine's serial number, contact our parts team directly.

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.