The Wacker Neuson is a genuine OEM Washer M5-A2 304 Flat SS designed for the GP3800A, GP5600A, GP6600A, GPS5600A, GPS6600A, GP4000, and G-series portable and skid-mounted mobile generators. As a direct OEM replacement sourced through the Wacker Neuson parts program, the meets the exact material and dimensional standards set at the factory. This washer is used across a wide range of GP and G-series generator configurations, including standard, wheel kit, cold weather, and electric-start variants. Confirming your model number before ordering ensures a correct, hassle-free installation.
Key Features
- 304 Stainless Steel Construction — Grade 304 stainless material provides corrosion resistance in outdoor and wet-weather generator deployments where a standard steel washer would oxidize and seize.
- M5-A2 Specification — Sized and graded to M5-A2 standard, this washer delivers the correct load-bearing surface area and hardness for its fastener application without over-compressing mating surfaces.
- Genuine Wacker Neuson OEM Part — Supplied as a factory-authorized component, 5000155260 matches the original specification exactly, with no dimensional guesswork or material substitution.
- Broad Generator Family Coverage — Fits GP3800A, GP4000, GP5600A, GP6600A, GPS5600A, GPS6600A portable generators and G25, G50, G70, G85, G110, G120, G125, and G160 skid-mounted mobile generators across multiple configuration variants.
- Drop-In Hardware Replacement — Flat washer profile installs directly in place of the original without rework to surrounding hardware or fastener positions.
A flat washer distributes the clamping load of a bolt or screw across a wider surface area, preventing the fastener head or nut from pulling through or damaging the material it is securing. In generator assemblies, where components are subject to continuous vibration during operation, correctly specified washers maintain consistent fastener tension and prevent loosening over time. Using a washer of the wrong grade or diameter can lead to uneven load distribution, accelerated wear on mating surfaces, and fastener failure — so replacing a worn or missing washer with the correct OEM part keeps the assembly secure and operating as intended.
Part Details
| Part Number | 5000155260 |
|---|---|
| Old Part Number | 0155260 |
| Brand | Wacker Neuson |
| Part Type | Genuine OEM |
| Description | Washer M5-A2 304 Flat SS |
Compatibility & Fitment
| Name | Model | Machine Number |
|---|---|---|
| Premium Portable Generator | GP5600A | 5000620094, 5000620095, 5000620381, 5000620382, 5000620326, 5000620327, 5000620984, 5000620979, 5000620980, 5000620042, 5000620043, 5000620091, 5000620092, 5000620011, 5000620012 |
| GPS5600A,CAN GFI | GPS5600A | 5000620096, 5000620383, 5000620328, 5000620981, 5000620982, 5000620044, 5000620093, 5000620013 |
| GP6600A GENERATOR,CAN GFI | GP6600A | 5000620100, 5000620101, 5000620384, 5000620329, 5000620330, 5000620045, 5000620046, 5000620097, 5000620098, 5000620014, 5000620015 |
| GPS6600A GENERATOR,CAN GFI | GPS6600A | 5000620102, 5000620386, 5000620331, 5000620047, 5000620099, 5000620016 |
| Portable Generator | GP3800A | 5000620104, 5000620379, 5000620485, 5000620342, 5000620484, 5000620041, 5000620103, 5000620010 |
| Premium Portable Generator | GP6600 | 5000620385, 5000620989, 5000620990, 5000620985, 5000620986 |
| Premium Portable Generator | GP4000 | 5000620090, 5000620380, 5000620977, 5000620978, 5000620089 |
| Mobile Generator (Cold Weather ) | G120 | 5000620291, 5000620290, 5000620292 |
| Skid-mounted Mobile Generator | G160 | 5000009306, 5000620069, 5000620070 |
| Skid-mounted Mobile Generator | G25 | 5000009258, 5000009462, 5000009476 |
| Skid-mounted Mobile Generator | G50 | 5000009259, 5000008229, 5000009463, 5000009477 |
| Skid-mounted Mobile Generator | G70 | 5000009260, 5000008230, 5000009464, 5000009478 |
| Mobile Generator (custom) | G125 | 5000620067, 5000620068, 5000009261, 5000008233 |
| GPS6600A Generator, EPA | GPS6600 | 5000620987, 5000620988 |
| Skid-mounted Mobile Generator | G85 | 5000009310, 5000008231, 5000009305, 5000009465 |
| GP3800A Generator, EPA w/Wheel Kit | GP3800 | 5000620976, 5000620974, 5000620975, 5100031174 |
| GP5600A Generator, EPA w/Wheel Kit | GP5600 | 5000620983 |
| Mobile Generator Skid Mounted | G110 | 5000008232 |
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.
