The Wacker Neuson 5100012041 is a genuine OEM Adjustment Bar designed for the RD40-130 and RD45-140 series tandem rollers, including standard, open-drum, padfoot, combo, DPF-equipped, and US-spec variants. As a direct factory replacement, the 5100012041 is manufactured to the same specifications as the original component, ensuring correct fitment across the full range of RD40-130 and RD45-140 configurations. This part covers an extensive model lineup — from baseline units to third-generation and DPF-compliant machines — making it the reliable choice whether you are servicing a single roller or maintaining a fleet. Always confirm your machine number against the fitment list to ensure the 5100012041 is the correct Adjustment Bar for your unit.
Key Features
- Genuine OEM Construction: — Manufactured to Wacker Neuson's original dimensional and material tolerances, so the bar maintains the correct range of motion and load bearing capacity required in a tandem roller adjustment system.
- Drop-In Replacement: — Engineered to match original mounting points and hardware interfaces on the RD40-130 and RD45-140 series, so installation follows the same procedure as the factory-fitted component.
- Broad Series Coverage: — A single part number covering standard, open-drum, padfoot, combo, DPF, US-spec, and third-generation variants of both the RD40-130 and RD45-140 tandem roller families.
- Sustained Adjustment Accuracy: — A correctly functioning adjustment bar holds roller system calibration in place during operation; a worn or bent bar leads to imprecise drum positioning and inconsistent compaction results on asphalt passes.
- Verified OEM Part Number: — Sourced directly under Wacker Neuson part number 5100012041, eliminating guesswork when cross-referencing against your parts manual or service documentation.
The adjustment bar is a structural linkage component within the tandem roller's drum or steering adjustment system. It transmits mechanical input to position a drum, tension a belt, or maintain a calibrated gap — depending on where it is installed in the machine. When the adjustment bar is bent, worn, or broken, the operator loses the ability to make accurate positional corrections, which can result in uneven drum contact, off-spec compaction depth, or increased wear on adjacent components. Replacing a damaged bar promptly restores correct mechanical geometry and keeps the roller performing consistently across asphalt and soil compaction applications.
Part Details
| Part Number | 5100012041 |
|---|---|
| Brand | Wacker Neuson |
| Part Type | Genuine OEM |
| Description | Adjustment Bar |
Compatibility & Fitment
| Name | Model | Machine Number |
|---|---|---|
| RD45-140 C Tandem Roller | RD45-140C US | 5100021804 |
| RD40-130 O | RD40-130 O | 5100011395 |
| RD45-140c | RD45-140c | 5100047385 |
| RD40-130o.3 | RD40-130o.3 | 5100047399 |
| RD40-130o DPF | RD40-130o DPF | 5100055781 |
| RD40-130 C Tandem Roller | RD40-130C US | 5100021803 |
| RD45-140.3 | RD45-140.3 | 5100047396 |
| RD45-140 | RD45-140 | 5100047383, 5100011392 |
| RD45-140 Tandem Roller | RD45-140 US | 5100021802 |
| RD45-140 DPF | RD45-140 DPF | 5100055778 |
| RD40-130 Tandem Roller | RD40-130 | 5100011391, 5100047382 |
| RD40-130 Tandem Roller | RD40-130 US | 5100021801 |
| RD45-140 C Tandem Roller | RD45-140 C | 5100011394 |
| RD40-130c | RD40-130c | 5100047384 |
| RD40-130 O Tandem Roller | RD40-130O US | 5100021805 |
| RD40-130 DPF | RD40-130 DPF | 5100055777 |
| RD45-140c DPF | RD45-140c DPF | 5100055780 |
| RD40-130o | RD40-130o | 5100047386 |
| RD40-130 C Tandem Roller | RD40-130 C | 5100011393 |
| RD40-130.3 | RD40-130.3 | 5100047395 |
| RD45-140o.3 | RD45-140o.3 | 5100047400 |
| RD45-140 O Tandem Roller | RD45-140O US | 5100021806 |
| RD45-140o | RD45-140o | 5100047387 |
| RD45-140c.3 | RD45-140c.3 | 5100047398 |
| RD45-140o DPF | RD45-140o DPF | 5100055782 |
| RD40-130c.3 | RD40-130c.3 | 5100047397 |
| RD40-130c DPF | RD40-130c DPF | 5100055779 |
| RD45-140 O Tandem Roller | RD45-140 O | 5100011396 |
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.
