Wacker Neuson 5000110591 Main Jet #70

The Wacker Neuson Main Jet #70 is a genuine OEM carburetor main jet designed for a wide range of Wacker Neuson walk-behind concrete trowels and vibratory plate compactors. As a direct OEM replacement, part is manufactured to the same specifications as the original component that left the factory, ensuring correct fuel metering without guesswork. Verified fitment spans the CT30 and CT36 walk-behind trowel families as well as WP1540, WP1550, VPA, and VPG series vibratory plates. This jet also crosses into select PT2A trash pump and HP/SP vibratory truss screed power section applications, making it a versatile stocking part for mixed Wacker Neuson fleets.

Key Features

• Calibrated Fuel Flow at #70 Orifice — the precisely sized #70 bore delivers the correct air-to-fuel ratio for these small-displacement engines, maintaining clean combustion and consistent power output.
• Genuine OEM Part — sourced directly from Wacker Neuson, the 5000110591 meets the original design tolerances for jet diameter and thread pitch, so it seats and seals in the carburetor body the same way the factory part did.
• Broad Cross-Family Fitment — a single part number covers CT30 and CT36 concrete trowels, WP1540 and WP1550 vibratory plates, VPA and VPG plate series, PT2A trash pumps, and HP/SP screed power sections.
• Restores Throttle Response and Fuel Economy — a worn or clogged main jet causes rich or lean running, rough idle, and loss of power under load; replacing it returns the engine to smooth, responsive operation.
• Fuel System Safety — a correctly fitted, undamaged jet maintains the fuel circuit's integrity inside the carburetor, reducing the risk of fuel leaks at the jet seat that can occur with damaged or incorrect replacements.

The main jet is the metering orifice inside the carburetor that controls how much fuel mixes with incoming air under mid-to-full throttle conditions. Its calibrated hole size — in this case #70 — is matched to the engine's displacement and carburetor venturi to produce the correct fuel-to-air mixture for efficient combustion. When the jet becomes clogged with varnish or debris, or when the orifice erodes over time, the engine runs lean or rich, resulting in hard starting, surging, power loss, or overheating. Replacing a worn or fouled main jet with the correct OEM specification part restores proper fuel delivery and brings engine performance back to its original operating condition.

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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