Wacker Neuson 5000216208 Carburetor Slow Passage Plug

The Wacker Neuson Carburetor Slow Passage Plug is a genuine OEM component designed for the CRT48-34V 1220mm/48in Ride-on Trowel and CT48-13A-V Trowel series. Sourced directly from Wacker Neuson, this part meets the exact design tolerances of the original — ensuring correct fuel metering at low throttle positions right out of the box. It is a direct-fit replacement for all listed CRT48-34V and CT48-13A-V models, so installation drops straight into the existing carburetor assembly without modification. When your trowel is idling rough or losing low-speed response, the is the correct OEM answer.

Key Features

• Precision Fuel Circuit Sealing — Manufactured to OEM spec to maintain correct slow-circuit passage geometry, ensuring accurate fuel delivery at idle and low throttle.
• Direct Carburetor Drop-In — Engineered to seat flush in the original slow passage port, restoring a factory-tight seal with no reworking of the carburetor body.
• Confirmed Fitment for CRT48-34V and CT48-13A-V — Covers multiple build variants across the 1220mm/48in Ride-on Trowel and CT48-13A-V Trowel lines.
• Stable Idle Restoration — A failed or missing slow passage plug causes rough idling, erratic low-speed running, and rich fuel mixture; replacing it restores smooth, consistent engine behavior.
• Fuel System Integrity — Correct sealing of the slow passage prevents unmetered air or fuel leaks that can affect combustion efficiency and engine longevity.

The carburetor slow passage plug seals the dedicated low-speed fuel circuit inside the carburetor body. At idle and light throttle, the engine draws fuel exclusively through this passage, so a worn, cracked, or missing plug disrupts the fuel-to-air ratio and causes unstable idling or stalling. Replacing this small but critical component restores proper fuel metering at low engine speeds, keeping the trowel responsive and controllable during setup and finish work.

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.

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