The Wacker Neuson 5100012807 is a genuine OEM Engine Oil Pressure Switch designed for the RD-series tandem roller lineup. Sourced directly from Wacker Neuson, this switch carries the exact specifications required by the engine management system in your machine. It is confirmed compatible with a wide range of RD tandem roller configurations, including the RD18, RD24, RD27, RD28, RD40, and RD45 model families across standard, combination, and open-drum variants. Installing a correctly rated pressure switch keeps the machine's oil monitoring system accurate and protects the engine from undetected low-pressure conditions during operation.
Key Features
- OEM-Rated Switching Threshold — Meets the exact activation pressure spec required by the engine in your RD-series tandem roller, ensuring the warning system triggers at the correct oil pressure level.
- Direct Plug-In Fitment — Matches the original connector and thread specification, allowing a straightforward swap with no adaptation to the engine block or wiring harness.
- Broad RD-Series Coverage — Compatible with RD18, RD24, RD27, RD28, RD40, and RD45 tandem rollers across multiple configuration variants, including C, O, and combination drum models.
- Engine Protection You Can Count On — A functioning oil pressure switch is the first line of defense against catastrophic engine damage; a failed switch can allow the engine to run unprotected without triggering a shutdown or warning alert.
- Genuine Wacker Neuson Part — Supplied as an authentic OEM component, this switch is manufactured to the same standard as the part it replaces, with no compromise in electrical or mechanical integrity.
The engine oil pressure switch monitors the lubrication system and signals the machine's control circuit when oil pressure drops below a safe operating threshold. When pressure falls too low, the switch triggers a warning light or shuts the engine down, preventing internal damage from oil starvation. A worn or failed switch can either fail to warn the operator of a genuine low-pressure event — risking serious engine damage — or generate false shutdowns that interrupt productivity. Replacing a suspect switch with a verified OEM part like the 5100012807 restores accurate, dependable monitoring to the lubrication system.
Part Details
| Part Number | 5100012807 |
|---|---|
| Brand | Wacker Neuson |
| Part Type | Genuine OEM |
| Description | Engine Oil Pressure Switch |
Compatibility & Fitment
| Name | Model | Machine Number |
|---|---|---|
| RD24-100 Tandem Roller | RD24-100 | 5100011385, 5100047374 |
| Vibration Roller | RD18-100 SE | 5100044989 |
| Vibration Roller | RD18-100c 3 | 5100047363 |
| RD24-100 O Tandem Roller | RD24-100O US | 5100021759 |
| RD40-130 Tandem Roller | RD40-130 | 5100011391 |
| RD45-140 Tandem Roller | RD45-140 | 5100011392 |
| RD27-120 | RD 27-120.3 | 5100032198 |
| RD18-100 C Tandem Roller | RD18-100 C | 5100011384 |
| RD18-80.3 | RD18-80.3 | 5100055946 |
| RD28-120 C Tandem Roller | RD28-120C US | 5100021758 |
| RD18-100 C Tandem Roller | RD18-100 C US | 5100027574 |
| RD27-120o | RD27-120o.3 | 5100047373 |
| RD18-80 | RD18-80 | 5100055774, 5100047360, 5100011382 |
| RD40-130o.3 | RD40-130o.3 | 5100047399 |
| RD18-100 Tandem Roller | RD18-100 US | 5100027573 |
| RD24-100c | RD24-100c | 5100047376 |
| RD18 | RD18-100.3 | 5100055947 |
| RD45-140.3 | RD45-140.3 | 5100047396 |
| RD18-80 Tandem Roller | RD18-80 US | 5100027572 |
| RD24-100 O Tandem Roller | RD24-100 O | 5100011389 |
| RD27-120 C Tandem Roller | RD27-120 C | 5100011388 |
| RD45-140o.3 | RD45-140o.3 | 5100047400 |
| RD18-100c | RD18-100c | 5100055776, 5100047362 |
| RD18-100c.3 | RD18-100c.3 | 5100055948 |
| Vibration Roller | RD18-80 SE | 5100044988 |
| RD27-120 O Tandem Roller | RD27-120 O | 5100011390 |
| RD28-120c | RD28-120c | 5100047377 |
| RD28-120 | RD28-120 | 5100047375 |
| RD27-120 Tandem Roller | RD27-120 | 5100011386 |
| RD24-100 C Tandem Roller | RD24-100C US | 5100021757 |
| RD 24-100.3 | RD 24-100.3 | 5100032197 |
| RD24-100o.3 | RD24-100o.3 | 5100047372 |
| RD18-100 | RD18-100 | 5100047361, 5100055775, 5100011383 |
| RD24-100 C Tandem Rollers | RD24-100 C | 5100011387 |
| RD28-120 O Tandem Roller | RD28-120O US | 5100021800 |
| RD45-140 O Tandem Roller | RD45-140 O | 5100011396 |
| RD45-140c.3 | RD45-140c.3 | 5100047398 |
| RD45-140 C Tandem Roller | RD45-140 C | 5100011394 |
| RD24-100 Tandem Roller | RD24-100 US | 5100021755 |
| RD24-100o | RD24-100o | 5100047378 |
| RD40-130c.3 | RD40-130c.3 | 5100047397 |
| RD27-120c | RD27-120c.3 | 5100047371 |
| RD28-120 Tandem Roller | RD28-120 US | 5100021756 |
| RD24-100c.3 | RD24-100c.3 | 5100047370 |
| RD28-120o | RD28-120o | 5100047379 |
| RD40-130 O | RD40-130 O | 5100011395 |
| RD40-130 C Tandem Roller | RD40-130 C | 5100011393 |
| RD40-130.3 | RD40-130.3 | 5100047395 |
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.
