The Wacker Neuson 5200020637 Drive Gear is a genuine OEM component designed for the RD27-100 and RD27-120 series hydrostatic vibratory tandem rollers, including both standard and traction control configurations. As a direct factory-sourced part, the 5200020637 is manufactured to the same specifications as the original gear installed at the assembly line, ensuring a clean, trouble-free installation into the drivetrain. This part covers all RD27-100 and RD27-120 machine variants, making it the correct choice for operators and service technicians working across the full RD27 lineup.
Key Features
- Genuine OEM Gear Geometry — Tooth profile and hardness match the original factory part exactly, ensuring smooth power transfer through the hydrostatic drivetrain without slop or premature wear.
- Direct Drop-In Installation — Engineered to the same dimensional tolerances as the part it replaces, seating correctly into the drivetrain housing without rework or shimming.
- Broad RD27 Series Coverage — Fits RD27-100 and RD27-120 tandem rollers in both standard hydrostatic and traction control configurations, consolidating parts inventory for mixed fleets.
- Sustained Compaction Output — A healthy drive gear transfers torque consistently to the drum drive system; a worn or damaged gear causes slippage, erratic drum speed, and uneven asphalt compaction passes.
- Drivetrain Integrity — On hydrostatic roller drivetrains, a failed drive gear can allow uncontrolled drum movement on grade — using the correct OEM replacement maintains predictable machine response and operator control.
The drive gear is a core power-transmission component within the RD27's drivetrain, responsible for translating rotational force from the hydrostatic drive system to the drum or propulsion assembly. When the gear teeth wear down or the gear fails, the machine loses the ability to deliver consistent drive force, resulting in drum hesitation, loss of traction, or complete drivetrain disengagement. Replacing a worn drive gear promptly with the correct OEM part restores full drivetrain performance and prevents secondary damage to surrounding transmission components.
Part Details
| Part Number | 5200020637 |
|---|---|
| Brand | Wacker Neuson |
| Part Type | Genuine OEM |
| Description | Drive Gear |
Compatibility & Fitment
| Name | Model | Machine Number |
|---|---|---|
| Hydrostatic Vibratory Roller w / Traction Control | RD27-100 | 5000620512, 5000620393, 5000620508, 5000620510 |
| Hydrostatic Vibratory Roller | RD27-120 | 5000620511, 5000620513, 5000620394, 5000620509 |
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.
