The Bomag 05818458 RPM Sending Unit is a genuine OEM component designed for BW 170 AD, BW 161 AC-4, and BW 151 AC-4 AM tandem rollers. Sourced directly from Bomag, this sending unit delivers the exact fit and electrical specification the machine requires — no guesswork on compatibility. It is confirmed to work across the BW 170 AD, BW 161 AC-4, and BW 151 AC-4 AM tandem roller lineup, making it a straightforward drop-in replacement for worn or failed units in the field.
Key Features
- OEM-Matched Signal Output — Manufactured to Bomag's original electrical specification, ensuring the sending unit produces the correct RPM signal your machine's control system expects.
- Direct-Fit Replacement — Engineered to connect to the existing sensor mounting and wiring harness on compatible tandem rollers, streamlining the swap-out process.
- Confirmed Tandem Roller Fitment — Verified for the BW 170 AD, BW 161 AC-4, and BW 151 AC-4 AM tandem rollers, so you can order with confidence using part number 05818458.
- Accurate Engine Monitoring Restored — A functioning RPM sending unit keeps engine speed data accurate across the instrument cluster and electronic controls, supporting proper operation and engine protection.
- Genuine Bomag Quality — As an authentic OEM part, the part meets the same design and material standards as the original component installed at the factory.
The RPM sending unit is a sensor that monitors engine or drum shaft rotational speed and transmits that data as an electrical signal to the machine's instrument panel and control system. On tandem rollers like the BW 170 AD and BW 161 AC-4, accurate RPM data is essential for engine management, operator awareness, and protecting drivetrain components from running outside their designed speed range. When the sending unit fails or degrades, the machine may display erratic readings, trigger warning lights, or lose engine speed feedback entirely — disrupting operation and potentially masking developing mechanical issues.
Part Details
| Part Number | 05818458 |
|---|---|
| Brand | Bomag |
| Part Type | Genuine OEM |
| Description | RPM Sending Unit |
Compatibility & Fitment
| Name | Model | Machine Number |
|---|---|---|
| Tandem Roller | BW 170 AD | 00817498 |
| Tandem Roller | BW 161 AC-4 | 00817947 |
| Tandem Roller | BW 151 AC-4 AM | 00817953 |
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.
