The Wacker Neuson 5100040187 is a genuine OEM Wiring Harness designed for the CT36 and CT48 series walk-behind concrete power trowels. This is a direct OEM replacement sourced through the Wacker Neuson parts network, ensuring the harness meets the original electrical routing, connector type, and circuit protection specifications for these machines. It is compatible across a wide range of CT36 and CT48 variants, including the CT36-5A, CT36-6, CT36-8A, CT36-9, CT36-9-V, CT36-8A-V, CT36-X, CT48-8A, CT48-9, CT48-11A, and CT48-13A-V. Replacing a damaged or degraded wiring harness with a verified OEM part keeps electrical systems operating as the machine was engineered to perform.
Key Features
- OEM Connector and Circuit Integrity — Manufactured to Wacker Neuson's original wiring layout, with matching connector housings, wire gauges, and insulation ratings for the CT36 and CT48 trowel platforms.
- Drop-In Harness Routing — Follows the factory harness path exactly, with pre-terminated connectors that plug directly into existing control and engine harness points without modification.
- Broad CT-Series Compatibility — Fits a wide range of CT36 and CT48 variants including standard, variable-pitch, EU, and walk-behind configurations across multiple production series.
- Protects Electrical System Performance — A sound wiring harness delivers clean, uninterrupted power to ignition, throttle control, and safety circuits; a cracked, corroded, or shorted harness can cause intermittent shutdowns, control failures, or no-start conditions.
- Electrical Safety Compliance — As a fuel system and ignition-adjacent component, using a genuine OEM harness with correct insulation and shielding helps maintain the electrical safety profile of the trowel as originally certified.
The wiring harness is the central electrical backbone of the CT-series trowel, bundling and routing power and signal circuits between the engine, throttle controls, operator presence switch, and any auxiliary electrical components. It protects individual wires from abrasion, heat, and moisture while ensuring each circuit delivers the correct voltage and signal to its destination. When a harness degrades — through cracking insulation, corroded terminals, or broken conductors — the result is often erratic operation, failed safety shutoffs, or a machine that will not start at all, making timely harness replacement critical to keeping the trowel safe and operational.
Part Details
| Part Number | 5100040187 |
|---|---|
| Brand | Wacker Neuson |
| Part Type | Genuine OEM |
| Description | Wiring Harness |
Compatibility & Fitment
| Name | Model | Machine Number |
|---|---|---|
| CT36-8A-V | CT36-8A-V | 5000620832, 5000009442 |
| CT48-11A Trowel | CT48-11A | 5000009450, 5000620835 |
| CT36-8A | CT36-8A | 5000620831, 5000009439 |
| CT48-8A Trowel | CT48-8A | 5000009449 |
| CT48-8A | CT48-8A EU | 5000620837 |
| CT48-13A-V Trowel | CT48-13A-V | 5000009452, 5000620836 |
| CT36-5A Trowel | CT36-5A | 5000009438, 5200016256 |
| CT36-5A | CT36-5A EU | 5000620829 |
| CT36-5A-C Trowel | CT36-5A-C | 5000620040 |
| CT36-9-V | CT36-9-V | 5000620834, 5000009447 |
| CT36-9 | CT36-9 | 5000620833, 5000009444 |
| CT36-6 | CT36-6 | 5000620830, 5000009443 |
| CT48-9 Trowel | CT48-9 | 5000009453, 5000620838 |
| 915mm/36in, Walk-Behind Trowel | CT36-X | 5000620036 |
| 915mm/36in, Walk-behind Trowel | CT36-X-C | 5000620039, 5200015336 |
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.
