The Wacker Neuson 5100012258 Inspection Glass is a genuine OEM component designed for the RD24-100, RD27-120, and RD28-120 series ride-on articulated tandem rollers. As a direct OEM replacement, this inspection glass is sourced and produced to the same standards as the original part fitted at the factory, ensuring a correct, trouble-free installation. Fitment spans a wide range of RD24-100 and RD28-120 variants — including DPF, open-ROPS, cab, and electric-hybrid configurations — making part number 5100012258 the confirmed replacement across the full RD24/RD27/RD28 tandem roller lineup.
Key Features
- OEM-Grade Optical Clarity — Manufactured to the same transparency and material spec as the original, so fluid levels read accurately without distortion or discoloration.
- Drop-In Installation — Matches the original mounting dimensions and thread or press-fit interface exactly, allowing straightforward replacement without machining or adapting the housing.
- Broad RD-Series Coverage — Confirmed fitment across RD24-100, RD27-120, and RD28-120 variants, including DPF, cab, open-ROPS, and electric-hybrid models.
- Leak-Free Seal Integrity — Correct fitment ensures the inspection glass seats properly against its housing, preventing seepage that could contaminate surrounding components or obscure the fluid-level view.
- Protects Drivetrain and Hydraulic Systems — A functioning inspection glass allows operators to monitor fluid levels before and during operation, catching low-level conditions before they cause component damage.
An inspection glass is a transparent sight window installed on a fluid reservoir — typically a hydraulic tank, gearbox, or exciter housing — that allows an operator or technician to visually confirm the fluid level without removing a cap or using a dipstick. On ride-on tandem rollers like the RD24 and RD28 series, maintaining correct fluid levels in the drum-drive and vibration systems is critical to sustained compaction performance. When an inspection glass cracks, hazes, or leaks at its seat, accurate fluid monitoring becomes impossible, increasing the risk of running a system low and causing premature wear or failure of internal components.
Part Details
| Part Number | 5100012258 |
|---|---|
| Brand | Wacker Neuson |
| Part Type | Genuine OEM |
| Description | Inspection Glass |
Compatibility & Fitment
| Name | Model | Machine Number |
|---|---|---|
| RD24-100 DPF | RD24-100 DPF | 5100047380 |
| RD24-100c.3 | RD24-100c.3 | 5100047370 |
| RD24-100 | RD24-100 | 5100047374, 5100011385 |
| RD24-100o.3 | RD24-100o.3 | 5100047372 |
| RD28-120c DPF | RD28-120c DPF | 5100047392 |
| RD24e-100 | RD24-100e | 5100066731 |
| RD28e-120c | RD28-120ce | 5100066734 |
| RD28-120 O Tandem Roller | RD28-120O US | 5100021800 |
| RD27-120 O Tandem Roller | RD27-120 O | 5100011390 |
| RD28-120 DPF | RD28-120 DPF | 5100047390 |
| RD24-100 Tandem Roller | RD24-100 US | 5100021755 |
| RD24-100 O Tandem Roller | RD24-100 O | 5100011389 |
| RD24-100c | RD24-100c | 5100047376 |
| RD27-120 C Tandem Roller | RD27-120 C | 5100011388 |
| RD28-120o | RD28-120o | 5100047379 |
| RD24-100o | RD24-100o | 5100047378 |
| RD28e-120 | RD28-120e | 5100066732 |
| RD27-120o | RD27-120o.3 | 5100047373 |
| RD27-120c | RD27-120c.3 | 5100047371 |
| RD28e-120o | RD28-120oe | 5100066736 |
| RD28-120 | RD28-120 | 5100047375 |
| RD27-120 | RD 27-120.3 | 5100032198 |
| RD24e-100o | RD24-100oe | 5100066735 |
| RD27-120 Tandem Roller | RD27-120 | 5100011386 |
| RD24-100 O Tandem Roller | RD24-100O US | 5100021759 |
| RD24e-100c | RD24-100ce | 5100066733 |
| RD24-100o DPF | RD24-100o DPF | 5100047393 |
| RD24-100 C Tandem Rollers | RD24-100 C | 5100011387 |
| RD28-120o DPF | RD28-120o DPF | 5100047394 |
| RD28-120 Tandem Roller | RD28-120 US | 5100021756 |
| RD24-100 C Tandem Roller | RD24-100C US | 5100021757 |
| RD28-120c | RD28-120c | 5100047377 |
| RD 24-100.3 | RD 24-100.3 | 5100032197 |
| RD28-120 C Tandem Roller | RD28-120C US | 5100021758 |
| RD24-100c DPF | RD24-100c DPF | 5100047391 |
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.
