The Wacker Neuson Crankshaft Complete is a genuine OEM component designed for G40 and G50 series portable generators, including standard, mobile, and LATAM Premium configurations. As a direct factory replacement, this crankshaft assembly ensures proper fitment across the G40 and G50 generator families without the guesswork of sourcing a compatible aftermarket alternative. Sourced directly from Wacker Neuson, the meets all original design tolerances and material specifications to deliver dependable engine operation. If your generator is showing signs of excessive vibration, loss of power, or internal engine wear, this genuine OEM Crankshaft Complete is the correct service part to restore it to full working condition.
Key Features
- Genuine OEM Crankshaft Integrity — Manufactured to original Wacker Neuson metallurgical and dimensional standards, ensuring the correct journal diameter, counterweight balance, and hardness for sustained engine operation under generator load cycles.
- Drop-In Engine Compatibility — Engineered to align directly with the existing main bearings, connecting rod, and flywheel assembly in G40 and G50 generator engines — no re-machining or custom fitting required.
- Broad G40 and G50 Generator Fitment — Covers multiple G40 variants including standard, mobile, and LATAM Premium configurations, as well as the G50 generator series, making it the right part across a wide production range.
- Restores Full Power Output — A worn or damaged crankshaft causes misfires, erratic RPM, and reduced generator output; replacing it with the correct OEM assembly brings power delivery back to rated specification.
- Verified Part Number for Confident Ordering — Part number 5200021076 cross-references directly to Wacker Neuson's official parts catalog, so you can order with confidence that this is the correct crankshaft for your machine.
The crankshaft is the central rotating component of the engine — it converts the up-and-down motion of the pistons into the rotational force that drives the generator's alternator. In a portable generator like the G40 or G50, the crankshaft must maintain precise rotational balance to deliver stable, consistent electrical output. When a crankshaft wears at the main or rod journals, or sustains damage from a lubrication failure, the result is increased vibration, knocking sounds, and ultimately a loss of engine power — all of which compromise the generator's ability to hold a steady load.
Part Details
| Part Number | 5200021076 |
|---|---|
| Brand | Wacker Neuson |
| Part Type | Genuine OEM |
| Description | Crankshaft Complete |
Compatibility & Fitment
| Name | Model | Machine Number |
|---|---|---|
| Generator | G40 | 5200015906, 5200015907, 5200016640, 5100029184 |
| Generator | G50 | 5200015909 |
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.
