The Wacker Neuson WM270 Muffler is a genuine OEM component designed for the GP4000 series portable generators. Sourced directly from Wacker Neuson, this muffler is built to the exact specifications of the original part, ensuring correct exhaust routing, backpressure, and noise attenuation for your generator. It is confirmed compatible across multiple GP4000 configurations, including Premium Portable Generator variants. When it comes time to restore proper exhaust function, part number is the correct, direct-replacement choice.
Key Features
- Genuine OEM Exhaust Specification — Manufactured to Wacker Neuson's original exhaust flow and backpressure ratings, preserving engine performance and longevity.
- Drop-In Replacement for GP4000 Series — Mounts to the existing exhaust port using the original hardware and connection points, with no fabrication or adaptation needed.
- Broad GP4000 Coverage — Compatible across multiple GP4000 generator configurations, including Premium and standard Portable Generator variants.
- Restores Proper Noise Attenuation — A worn or cracked muffler allows exhaust noise to increase significantly and can disrupt safe jobsite sound levels; this OEM replacement brings levels back to spec.
- Exhaust Integrity and Operator Safety — A failed muffler can direct hot exhaust gases toward the operator or surrounding equipment; replacing it promptly with a correctly rated OEM part is essential for safe operation.
The muffler is a critical component of the generator's exhaust system, responsible for channeling combustion gases away from the engine and reducing the acoustic output to an acceptable operating level. When a muffler cracks, corrodes, or develops leaks, exhaust gases can escape before being properly directed, increasing noise levels, reducing engine efficiency, and creating a potential burn or carbon monoxide hazard. Replacing a failing muffler with the correct OEM part — such as Wacker Neuson 5000164570 — restores safe, quiet, and efficient exhaust function to your GP4000 generator.
Part Details
| Part Number | 5000164570 |
|---|---|
| Old Part Number | 0164570 |
| Brand | Wacker Neuson |
| Part Type | Genuine OEM |
| Description | WM270 Muffler |
Compatibility & Fitment
| Name | Model | Machine Number |
|---|---|---|
| Premium Portable Generator | GP4000 | 5000620090, 5000620380, 5000620977, 5000620978, 5000620089 |
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.
Wacker Neuson