The Wacker Neuson Drive Key is a genuine OEM component designed for the HSH hydronic surface heater series, HI indirect-fired air heater series, CUB indirect-fired heater series, HP252, and MC5200 mobile drying systems. As a direct factory-sourced part, the carries the full Wacker Neuson OEM specification, ensuring it seats and locks exactly as intended without any guesswork at installation. Verified fitment spans a wide range of heating and climate-control equipment including HSH350, HSH380S, HSH380B, HSH650, HSH700G, HI260, CUB400, CUB700, CUB700GM, CUB700M, HP252, and MC5200 models. When you need to restore a drive connection to spec, this is the correct part to install.
Key Features
- OEM Dimensional Accuracy — Manufactured to Wacker Neuson's exact tolerances so the key fills the keyway fully, eliminating slop that leads to shaft or hub wear.
- Drop-In Replacement — Matches the original profile and material grade, slipping directly into the keyway slot without filing, grinding, or shimming.
- Broad Heater Family Coverage — A single part number covers HSH, HI260, CUB400, CUB700, HP252, and MC5200 platforms, making it a practical stock item for fleets running multiple Wacker Neuson heating units.
- Drive Integrity Under Load — A correctly seated drive key keeps rotating components locked in phase; a worn or missing key allows slippage that can destroy both the shaft and the driven hub in short order.
- Fuel and Heat System Safety — In heating equipment, a failed drive connection can interrupt fuel pump or blower operation; using the correct OEM key restores the intended mechanical coupling and keeps the heating circuit operating as designed.
A drive key is a small but load-bearing component that sits in a machined slot between a rotating shaft and a hub — such as a pulley, gear, or impeller — to transfer torque between the two. It prevents the hub from spinning freely on the shaft, which is critical in heating equipment where precise, uninterrupted rotation of pumps, fans, or blower assemblies is required for safe and efficient operation. When a drive key shears, deforms, or goes missing, the driven component loses its connection to the shaft, causing the unit to underperform or shut down entirely, and allowing wear damage to propagate quickly to the surrounding bore and shaft surfaces.
Part Details
| Part Number | 5000169290 |
|---|---|
| Old Part Number | 0169290 |
| Brand | Wacker Neuson |
| Part Type | Genuine OEM |
| Description | Drive Key |
Compatibility & Fitment
| Name | Model | Machine Number |
|---|---|---|
| HSH700 | HSH700G | 5000620243 |
| Hydronic Surface Heater | HSH350 | 5000620254, 5200001677 |
| HP252 | HP252 | 5000620249 |
| HI260 HEATER,OIL WITH TANK | HI260 | 5200018503, 5200018504 |
| Skid Mounted-Indirect Fired Ai r Heat, Diesel | CUB700 | 5000620213, 5000620687, 5000620207 |
| Skid Mounted-Indirect Fired Ai r Heater, Diesel | CUB400 | 5000620211, 5000620212, 5000620615 |
| HSH650 | HSH650 | 5000620991 |
| Mobile Drying System | MC5200 | 5000620201, 5000620232 |
| HSH380s | HSH 380S | 5100054643 |
| HSH380S-Diesel, with Generator | HSH380S | 5200012371 |
| HSH380B-Diesel, without generator | HSH380B | 5200012359 |
| Mobile Indirect Fired Air Heat er, Diesel w/Genset | CUB700GM | 5000620759 |
| Mobile Indirect Fired Air Heat er, Diesel | CUB700M | 5000620758 |
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.
