The Wacker Neuson Thermostat is a genuine OEM thermostat designed for the RD24-100, RD28-120, RD40-130, and RD45-140 series tandem rollers. Sourced directly from Wacker Neuson, this part meets the exact specification of the original component it replaces, ensuring a correct installation with no guesswork. Fitment covers the full range of RD-series variants including standard, C, and O configurations across both the US and non-US model lines.
Key Features
- Genuine OEM Temperature Calibration — Opens and closes at the manufacturer-specified coolant temperature, protecting the engine from overheating and over-cooling during compaction work.
- Direct Drop-In Replacement — Matches the original housing seat, inlet diameter, and bypass configuration, so it installs straight into the cooling circuit without modification.
- Broad RD-Series Fitment — Compatible with RD24-100, RD28-120, RD40-130, and RD45-140 tandem rollers in standard, C, and O variants, covering a wide spread of the RD product family.
- Engine Temperature Protection — A properly functioning thermostat keeps the engine operating in its optimal thermal range, sustaining consistent drum performance and fuel efficiency across long compaction runs.
- Verified Part Authenticity — As a genuine Wacker Neuson part, the 5100024306 carries the same quality assurance as the component originally fitted at the factory, giving you confidence in part identity and longevity.
A thermostat regulates coolant flow between the engine and the radiator by opening and closing in response to coolant temperature. When the engine is cold, the thermostat stays closed, allowing the coolant to circulate only within the engine block so it reaches operating temperature quickly. Once the correct temperature is reached, it opens to route hot coolant through the radiator for cooling. A failed or stuck thermostat — whether stuck open or closed — disrupts this balance, leading to either chronic overheating or an engine that never fully warms up, both of which accelerate wear and reduce performance on the job.
Part Details
| Part Number | 5100024306 |
|---|---|
| Brand | Wacker Neuson |
| Part Type | Genuine OEM |
| Description | Thermostat |
Compatibility & Fitment
| Name | Model | Machine Number |
|---|---|---|
| RD24-100 Tandem Roller | RD24-100 US | 5100021755 |
| RD28-120 Tandem Roller | RD28-120 US | 5100021756 |
| RD24-100 C Tandem Roller | RD24-100C US | 5100021757 |
| RD28-120 C Tandem Roller | RD28-120C US | 5100021758 |
| RD24-100 O Tandem Roller | RD24-100O US | 5100021759 |
| RD28-120 O Tandem Roller | RD28-120O US | 5100021800 |
| RD40-130 Tandem Roller | RD40-130 US | 5100021801 |
| RD45-140 Tandem Roller | RD45-140 US | 5100021802 |
| RD40-130 C Tandem Roller | RD40-130C US | 5100021803 |
| RD45-140 C Tandem Roller | RD45-140C US | 5100021804 |
| RD40-130 O Tandem Roller | RD40-130O US | 5100021805 |
| RD45-140 O Tandem Roller | RD45-140O US | 5100021806 |
| RD24-100 | RD24-100 | 5100047374 |
| RD28-120 | RD28-120 | 5100047375 |
| RD24-100c | RD24-100c | 5100047376 |
| RD28-120c | RD28-120c | 5100047377 |
| RD24-100o | RD24-100o | 5100047378 |
| RD28-120o | RD28-120o | 5100047379 |
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.
