The Wacker Neuson Retrofit Kit Cap Us is a genuine OEM component designed for the IRFU series internal concrete vibrators, including the IRFU30, IRFU38, IRFU45, IRFU57, IRFU60HR, and IRFU65 115V/120V models. As a direct OEM replacement, is manufactured to the same standards as the original part, ensuring proper fit and function across the full range of compatible IRFU vibrators. This kit covers a wide spread of cord lengths — from 5-meter through 10-meter configurations — making it a versatile stocking item for contractors running multiple IRFU units on the same site. Verify your model number against the fitment list before ordering to confirm compatibility.
Key Features
- Genuine OEM Cap Construction — Sourced directly from Wacker Neuson, this retrofit cap kit meets the original dimensional and material tolerances required to seal and protect the vibrator head connection on IRFU units.
- Broad IRFU Series Compatibility — Fits IRFU30, IRFU38, IRFU45, IRFU57, IRFU60HR, and IRFU65 internal vibrators across 115V and 120V configurations, covering 5-meter, 8-meter, and 10-meter cord lengths.
- Retrofit-Ready Design — Engineered as a retrofit kit, this cap assembly installs on existing IRFU vibrator heads without the need to replace the full unit, extending service life at lower cost.
- Protects Electrical Connections — A correctly seated cap maintains the integrity of the vibrator's head connection, guarding against moisture ingress and mechanical wear that can cause electrical faults or erratic vibration output.
- GFCI-Compatible Models Supported — Fitment includes IRFU60HR GFCI-equipped models (120V), confirming compatibility with safety-rated configurations commonly required on US commercial construction sites.
The cap on an internal concrete vibrator head serves as the protective closure at the point where the flexible drive shaft or cord connects to the vibrator poker head assembly. It shields the internal electrical and mechanical connections from concrete slurry, water, and jobsite debris — all of which can accelerate corrosion and cause premature failure of the vibrator unit. When the cap becomes cracked, worn, or loses its sealing fit, moisture and contaminants can enter the head assembly, leading to inconsistent vibration frequency, electrical faults, or complete loss of vibration — compromising concrete consolidation quality. Replacing a worn cap with the correct OEM retrofit kit restores the protective barrier and keeps the vibrator performing at its rated output.
Part Details
| Part Number | 5100003805 |
|---|---|
| Brand | Wacker Neuson |
| Part Type | Genuine OEM |
| Description | Retrofit Kit Cap Us |
Compatibility & Fitment
| Name | Model | Machine Number |
|---|---|---|
| IRFU45 Internal Vibrator, 115V, 1.8", 5 Meter | IRFU45/120/5 US | 5000610098 |
| IRFU38 Internal Vibrator, 115V, 1.5", 5 Meter | IRFU38/120/5 US | 5000610100 |
| IRFU57 Internal Vibrator, 115V, 2.3", 5 Meter | IRFU57/120/5 US | 5000610009 |
| IRFU30 Internal Vibrator, 115V, 1.2", 5 Meter | IRFU30/120/5 US | 5000610102 |
| IRFU65/120/5 US | IRFU65/120/5 US | 5000610106 |
| IRFU57 Internal Vibrator, 115V, 2.3", 8 Meter | IRFU57/120/8 US | 5000610269 |
| IRFU57 Internal Vibrator, 115V, 2.3", 10 Meter | IRFU57/120/10 US | 5000610270 |
| IRFU65/120/8 US | IRFU65/120/8 US | 5000610288 |
| IRFU60HR Internal Vibrator, 120V, 5 Meter GFCI | IRFU60/120/5hr US | 5100001343 |
| IRFU60HR Internal Vibrator, 120V, 10 Meter GFCI | IRFU60/120/10hr US | 5100001526 |
| IRFU60HR Internal Vibrator, 120V, 8 Meter GFCI | IRFU60/120/8hr US | 5100002838 |
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.
