Bomag 05851086 Seal Kit

The Bomag 05851086 Seal Kit is a genuine OEM replacement built for a wide range of Bomag compaction and stabilization equipment, including BW-series tandem rollers, single drum rollers, walk-behind rollers, BMP 8500 trench compactors, MPH-series recyclers/stabilizers, RS-series recyclers/stabilizers, and the BP 50/55 HE vibratory plate. Sourced directly from Bomag, this seal kit carries the same part number 05851086 used in the original factory build, so you can order with confidence that you're getting the correct fit. Compatible models span multiple generations — from earlier BW 90 AD and BW 120 AD tandem rollers through current-generation BW 174 AP-5 and BW 161 AD-5 machines, as well as the MPH 122, MPH 125, MPH 600, RS 460, RS 500, and RS 650. This is the correct service part to have on hand before any scheduled seal replacement or unplanned leak repair.

Key Features

• Genuine OEM Sealing Material — manufactured to Bomag's exact material and dimensional specifications, ensuring proper compression, sealing integrity, and resistance to hydraulic fluid and operating temperatures found in compaction equipment
• Direct Drop-In Replacement — each seal in the kit corresponds to the original component geometry, allowing straightforward installation without machining or modification to mating surfaces
• Broad Multi-Machine Coverage — fits a wide range of Bomag equipment including BW-series tandem rollers (BW 80 AD-2 through BW 174 AP-5), single drum rollers (BW 124 D, BW 124 DH-3, BW 124 PDH-3), walk-behind rollers (BW 65 D, BW 75 AD, BW 75 ADL), BMP 8500 trench compactors, MPH and RS recyclers/stabilizers, and the BP 50/55 HE vibratory plate
• Leak Prevention and System Pressure Retention — a failed or worn seal allows hydraulic fluid to bypass or escape, leading to pressure loss, erratic drum or drive behavior, and accelerated wear on surrounding components; replacing with this kit restores full system containment
• Correct Part for the Service Interval — using the OEM-specified seal kit means all replaced seals are matched in durometer, profile, and chemical compatibility — mixing seal grades can cause premature failure even when dimensions appear correct

A seal kit contains the gaskets, O-rings, and sealing elements required to restore hydraulic or mechanical assemblies to a leak-free condition during a rebuild or overhaul. Seals degrade over time through heat cycling, fluid exposure, and mechanical compression, eventually losing their ability to maintain pressure boundaries within the system. When seals fail, hydraulic pressure drops, fluid leaks externally or internally, and the affected circuit — whether it controls drum vibration, propulsion, or steering — loses responsiveness or stops functioning altogether. Replacing all seals in the affected assembly at once with a complete kit prevents repeat teardowns and ensures every sealing surface is addressed in a single service event.

Part Details

Compatibility & Fitment

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.