Wacker Neuson 5000176113 Isuzu Engine

The Wacker Neuson is a genuine OEM Isuzu Engine designed for G25 portable generators and LTW20Z1 and LTW20Z3 series light towers. Sourced directly from Wacker Neuson, this engine assembly carries the same part number, tolerances, and configuration as the unit installed at the factory, ensuring a true drop-in replacement. Fitment spans a wide range of G25 and G20 generator configurations — including standard, cold weather, custom, and extended run tank variants — as well as the full LTW20Z1 and LTW20Z3 light tower lineup, covering Tier 4i, custom, cold weather, skidded, and vertical-mast variants. When your power equipment goes down, installing the correct OEM engine assembly is the fastest path back to full output.

Key Features

• Genuine OEM Isuzu Engine Assembly — Factory-sourced unit matched to Wacker Neuson's original engine specification for the G25, G20, and LTW20Z series, ensuring correct displacement, mounting geometry, and emissions compliance.
• Broad Series Compatibility — Fits G25 and G20 portable generators across standard, cold weather, custom, extended run tank, and 600V switchable configurations, plus LTW20Z1 and LTW20Z3 light towers in Tier 4i, custom, cold weather, skidded, and vertical-mast builds.
• Direct Mounting Interface — Engineered to align with existing generator head and light tower frame mounting points on compatible machines, so the swap follows the original service procedure without fabrication or adaptation.
• Sustained Power Output — A correctly functioning engine keeps the generator or light tower running at rated load and voltage. A failing or worn engine causes voltage fluctuation, reduced runtime, hard starting, and eventual shutdown of the connected equipment.
• Emissions-Certified Configuration — Supplied in Tier 4i-compliant form where applicable, keeping affected machines in line with EPA and off-road emissions requirements for the relevant model year and configuration.

The Isuzu engine is the prime mover in Wacker Neuson's G25 and G20 generator sets and LTW20Z series light towers — it converts diesel fuel into the rotational power that drives the generator head to produce electrical output, or the hydraulic or electric systems that raise and power the light tower's lamp array. Without a healthy engine, neither the generator nor the light tower can deliver stable power or meet rated output. Engine wear, damage, or failure typically shows up as hard starting, excessive smoke, loss of power under load, or complete shutdown; at that point, a full engine replacement restores the machine to its original performance envelope rather than chasing individual worn components.

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.