Wacker Neuson 5000039235 O-Ring

The Wacker Neuson O-Ring is a genuine OEM O-Ring designed for BPU and DPU series reversible vibratory plate compactors. This small but critical sealing component is specified across a wide range of BPU and DPU models, including the BPU 3545A, BPU 5045A, BPU 5545A, DPU 4045, DPU 4545, DPU 5045, DPU 5545, DPU 6055, and DPU 6555 series — covering both gasoline-powered BPU and diesel-powered DPU configurations. As a genuine Wacker Neuson part, the is manufactured to the exact material grade and dimensional tolerances specified for these machines, ensuring a proper seal every time. When an O-Ring of this type fails, fluid or air leaks can compromise hydraulic pressure and machine performance, making timely replacement essential.

Key Features

• Correct Material Grade for Sealing Duty — Manufactured to OEM-specified elastomer composition and durometer hardness, ensuring proper compression and sealing under operating pressures found in BPU and DPU hydraulic systems.
• Drop-In Sealing Fit — Dimensionally identical to the original, this O-Ring seats into the correct groove without trimming, stretching, or shimming — restoring the factory seal interface.
• Broad BPU and DPU Compatibility — Fits gasoline-powered BPU 3545A, BPU 4045A, and BPU 5545A models as well as diesel-powered DPU 4045, DPU 4545, DPU 5045, DPU 5545, DPU 6055, and DPU 6555 series reversible vibratory plates.
• Prevents Hydraulic Pressure Loss — A properly seated O-Ring maintains system pressure in the reversible drive circuit, allowing the plate to deliver full compaction force and consistent directional control in both forward and reverse.
• Genuine Wacker Neuson OEM Part — Sourced directly from Wacker Neuson, part number 5000039235 meets the same standards as the component originally installed at the factory — no guesswork on material compatibility or sizing.

An O-Ring in a reversible vibratory plate compactor serves as a pressure seal within the hydraulic circuit that controls the machine's exciter or reversible travel system. It prevents hydraulic fluid from bypassing or leaking at joints, ports, and valve interfaces — keeping pressure where it needs to be for the plate to compact efficiently and change direction on command. When this seal degrades, cracks, or extrudes out of its groove, the result is internal leakage, reduced hydraulic pressure, sluggish or erratic reversing behavior, and potential fluid loss that can lead to broader system damage if left unaddressed.

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.

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