

PowrTwin part 459-005 is a mount plate used to secure critical components such as the engine, pump, or gearbox to the frame of compatible PowrTwin 12000 series machines. This precision‑formed plate ensures proper alignment, reduces vibration, and maintains structural integrity under load.
| Part Number | 459-005 |
|---|---|
| Part Description | Mount Plate |
| Brand | PowrTwin |
| Fits | 12000GHD, 12000XLT, 12000GH, 12000GHD |
| Condition | New |
The PowrTwin 459-005 Mount Plate is a structural component designed to securely attach the engine, hydraulic pump, or gearbox to the frame of compatible 12000 series models. It ensures precise alignment of driven components and helps distribute mechanical loads evenly to reduce stress on the frame and fasteners.
Over time, mount plates can crack due to vibration fatigue, become bent from impact, or have elongated mounting holes from loose hardware. Replacing a damaged plate restores proper component alignment, reduces vibration, and prevents premature wear of belts, couplings, and driven components.
| Component support | Provides a rigid mounting surface for engine, pump, or gearbox |
|---|---|
| Alignment maintenance | Holds driven components in correct alignment to reduce wear on belts/couplings |
| Vibration damping | Works with isolators to absorb operational vibration and shock |
| Visible cracks | Stress fractures, especially around bolt holes or bends |
|---|---|
| Bent or warped plate | Deformation from impact or over‑torquing |
| Elongated mounting holes | Holes worn oversize, allowing components to shift |
| Rust/corrosion perforation | Severe rust that compromises structural strength |
PowrTwin part 459-005 is compatible with the following PowrTwin 12000 series machines. Always confirm fitment using the correct parts diagram for your exact model and serial number range.
| PowrTwin Model | Component |
|---|---|
| PowrTwin 12000GHD | Mount plate |
| PowrTwin 12000XLT | Mount plate |
| PowrTwin 12000GH | Mount plate |
| PowrTwin 12000GHD | Mount plate |
When replacing a mount plate, it's a good practice to inspect and often replace the hardware and isolators that work with it. These related parts are frequently ordered at the same time.
Bolts can stretch or corrode; using new Grade‑8 hardware ensures proper clamp force.
Worn isolators increase stress on the plate; replace them to restore damping.
Damaged feet can cause misalignment and should be replaced with the plate.