Multiquip 22020G5111 Ignition Unit Transistor

The Multiquip 22020G5111 Ignition Unit Transistor is a genuine OEM component designed for C30HDNI, C30HDNI Precision, C30HDN, and C30HDNI Zenith concrete pump models. As a direct OEM replacement, it meets the original electrical specifications required for consistent ignition performance in these Mayco concrete pump units. Sourced directly through authorized Multiquip supply channels, the 22020G5111 ensures you are installing the exact part your machine was built to run. DHS Equipment carries this part to keep your concrete pump operating at full capacity with no guesswork on fitment.

Key Features

• OEM-Spec Electrical Output: — Manufactured to the original ignition circuit specifications, ensuring correct trigger voltage and timing signal for these engine configurations.
• Direct Drop-In Replacement: — Engineered to connect directly to the existing ignition harness on C30HDNI and C30HDN models without splicing or rewiring.
• Broad Model Coverage: — Fits C30HDNI, C30HDNI Precision, C30HDN, and C30HDNI Zenith Mayco concrete pump variants under the Multiquip portfolio.
• Consistent Engine Starting: — A functioning ignition transistor unit delivers a clean, correctly timed spark signal — a worn or failed unit leads to hard starting, misfires, or a complete no-start condition.
• Ignition System Integrity: — Replacing a faulty transistor ignition unit with a genuine OEM part maintains the integrity of the full ignition circuit, which is critical on fuel-system-sensitive concrete pump engine configurations.

The ignition unit transistor is the electronic switching component responsible for controlling the ignition coil's primary circuit. It receives a trigger signal from the engine's timing system and switches current to the coil at precisely the right moment, generating the high-voltage spark needed to fire the engine. When this component fails, the ignition coil receives no signal or an erratic one, resulting in hard starting, rough running, or a complete failure to start — bringing concrete pumping operations to a halt until the unit is replaced.

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.