The Bomag 05802134 Quad Ring is a genuine OEM sealing component designed for Bomag BW 125 ACH and BW 135 AC tandem rollers. Sourced directly from Bomag, this quad ring delivers the exact material grade, cross-section geometry, and dimensional tolerances specified for these machines. This part fits the BW 125 ACH and BW 135 AC tandem roller models, ensuring a proper seal without guesswork or modification. When you order by part number 05802134, you can be confident you are receiving the correct OEM component for your machine.
Key Features
- OEM Sealing Integrity — manufactured to Bomag's exact compound and dimensional spec, delivering the compression and chemical resistance required for hydraulic or fluid sealing applications on tandem rollers
- Direct Drop-In Replacement — the four-lobed quad ring profile seats into the original groove just as the factory component does, requiring no machining or adaptation
- Confirmed Fitment — compatible with BW 125 ACH and BW 135 AC tandem rollers; ordering by part number 05802134 ensures you receive the right ring for your specific machine
- Leak Prevention — a correctly installed quad ring maintains a consistent fluid barrier across operating pressures and temperatures, preventing fluid loss that can lead to component wear or system failure
- Fluid System Safety — a degraded or incorrect seal can result in hydraulic fluid leaks that create slip hazards and compromise machine control; using the correct OEM quad ring keeps the system sealed and the operator safe
A quad ring, also known as an X-ring, is a four-lobed sealing element used in dynamic and static hydraulic or lubrication circuits. Unlike a standard O-ring, the four-lobe profile creates multiple sealing contact points simultaneously, which improves sealing efficiency and reduces the risk of spiral twist under dynamic motion. In tandem rollers like the BW 125 ACH and BW 135 AC, quad rings are commonly found in hydraulic systems where maintaining a leak-free seal under continuous vibration and load cycling is critical. When this seal wears, flattens, or hardens with age, fluid leaks develop, pressure drops, and connected hydraulic components can suffer accelerated wear — making timely replacement an important part of routine service.
Part Details
| Part Number | 05802134 |
|---|---|
| Brand | Bomag |
| Part Type | Genuine OEM |
| Description | Quad Ring |
Compatibility & Fitment
| Name | Model | Machine Number |
|---|---|---|
| Tandem Roller | BW 125 ACH | 00817466 |
| Tandem Roller | BW 135 AC | 00817470 |
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.
