The Wacker Neuson is a genuine OEM Fuel Knob designed for a wide range of Wacker Neuson petrol breakers, including the BH 23, BH 24, BH 55, BH 55rw, BH 65, and BH 40 series. Sourced directly from Wacker Neuson, this part carries the exact specifications of the original component installed at the factory. Compatibility extends across multiple configurations within these series — including Low Vibration and RS variants — making the a go-to replacement for operators running several breaker models in their fleet.
Key Features
- Genuine OEM Fuel Control Accuracy — Manufactured to Wacker Neuson's original design tolerances, ensuring the knob operates with the same tactile resistance and fuel-flow range as the part it replaces.
- Direct Drop-In Installation — Engineered to match the original mounting interface, so it installs onto the fuel system assembly without modification or additional hardware.
- Broad Breaker Series Coverage — Fits BH 23, BH 24, BH 55, BH 55rw, BH 65, and BH 40 petrol breakers across standard, Low Vibration, RS, and regional variants.
- Consistent Fuel Adjustment — A correctly functioning fuel knob lets the operator dial in the right fuel delivery for the application; a worn or cracked knob can make fine adjustment unpredictable and compromise engine performance.
- Fuel System Integrity — Using the correct OEM-spec knob maintains a secure, sealed connection at the fuel control point, reducing the risk of fuel handling issues during operation.
The fuel knob gives the operator manual control over fuel delivery to the engine on a petrol breaker. By turning the knob, the operator can adjust the fuel flow to match running conditions — critical for reliable starting, smooth idle, and consistent power output under load. When the knob becomes cracked, stripped, or difficult to turn, precise fuel adjustment is lost, which can lead to hard starting, rough running, or excessive fuel consumption.
Part Details
| Part Number | 5000222421 |
|---|---|
| Old Part Number | 0222421 |
| Brand | Wacker Neuson |
| Part Type | Genuine OEM |
| Description | Fuel Knob |
Compatibility & Fitment
| Name | Model | Machine Number |
|---|---|---|
| Petrol Breaker | BH 55 27x80 CN | 5100004030 |
| Petrol Breaker BH 23 | BH 23 | 5000610377, 5000610378, 5000610379, 5000610380, 5000610381 |
| Petrol Breaker BH 24 | BH 24 | 5000610382, 5000610383, 5000610384, 5000610385, 5000610386 |
| BH65 Gasoline Breaker | BH 65 | 5000610387 |
| Petrol Breaker BH 24 Low Vib | BH 24 Low Vib | 5000610388, 5000610389, 5000610390, 5000610391, 5000610392 |
| Petr. Breaker BH 24 Low Vib RS | BH 24 Low Vib RS | 5000610393 |
| Petrol Breaker BH 23 SJT | BH 23 SJT | 5000610410 |
| BH 55, 27x80 | BH 55 27x80 | 5100004026 |
| BH 55, hex 25x108 | BH 55 25x108 | 5100004027 |
| BH 55, hex 28x152 | BH 55 28x152 | 5100004028 |
| BH55 28x160 | BH 55 28x160 | 5100004029 |
| Petrol Breaker | BH 55 27x80 JP | 5100004031 |
| BH 65, 27x80 | BH 65 27x80 | 5100004032 |
| BH 65, hex 25x108 | BH 65 25x108 | 5100004033 |
| BH 65, hex 28x152 | BH 65 28x152 | 5100004034 |
| BH65 28x160 | BH 65 28x160 | 5100004035 |
| BH65 32x160 | BH 65 32x160 | 5100004036 |
| BH65 Gasoline Breaker | BH 65 28x152 US | 5100004037 |
| BH55rw 27x80 | BH 55rw 27x80 | 5100004038 |
| BH55rw 25x108 | BH 55rw 25x108 | 5100004039 |
| BH 55rw 28x152 | BH 55rw 28x152 | 5100004040 |
| BH55rw 28x160 | BH 55rw 28x160 | 5100004041 |
| BH55rw 32x160 | BH 55rw 32x160 | 5100004042 |
| BH55RW RS 27x80 | BH 55rw rs 27x80 | 5100004043 |
| BH65 28x160 | BH65 28x160 | 5100047068, 5100051587 |
| BH65 32x160 | BH65 32x160 | 5100047069 |
| BH55rw 27x80 | BH55rw 27x80 | 5100047100 |
| BH55rw 28x160 | BH55rw 28x160 | 5100047101 |
| BH55rw 32x160 | BH55rw 32x160 | 5100047102 |
| BH55rw rs 27x80 | BH55rw rs 27x80 | 5100047103 |
| BH65 27X80 | BH65 27x80 | 5100047106 |
| BH65 25x108 | BH65 25x108 | 5100047107 |
| ND-40-I(BH23) | ND-40-I(BH23) | 5100060159 |
| BH55 27x80 | BH55 27x80 | 5100047063 |
| BH55 25x108 | BH55 25x108 | 5100047104 |
| BH55 28x160 | BH55 28x160 | 5100047105 |
| BH40 | BH40 27x80 | 5100047309 |
| BH40rs | BH40rs 27x80 o. bsz | 5100048665 |
| BH 23 27x80 CN | BH 23 27x80 CN | 5100010066 |
| Petrol Breaker | BH55 27x80 SEA | 5100026903 |
| Petrol Breaker | BH55rw 27x80 SEA | 5100026904 |
| Petrol Breaker | ND-40-II(BH19) | 5100048663 |
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.
