Wacker Neuson 5100009685 WM 80 Engine
Wacker Neuson

Wacker Neuson 5100009685 WM 80 Engine

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SKU:
5100009685-Wacker Neuson

The Wacker Neuson 5100009685 WM 80 Engine is a genuine OEM replacement engine designed for the BS50-2, BS60-2, BS65-V, and BS70-2 series vibratory rammers. As the factory-sourced powerplant, part 5100009685 delivers the correct displacement, output, and mounting configuration to restore your rammer to full operating condition. This engine is confirmed to fit across a wide range of BS-series rammer configurations, including standard, 6-inch, 11-inch, and US-market variants. When you need a dependable engine replacement that drops in without guesswork, the Wacker Neuson 5100009685 is the right choice.

Key Features

  • Genuine OEM Power Output: — Factory-matched displacement and power rating ensure the rammer delivers the correct impact force and stroke cycle for effective trench and cohesive soil compaction.
  • Direct-Fit Installation: — Engineered to the exact mounting dimensions and connection points of the BS-series rammer frame, so the engine seats and aligns correctly without adapter work.
  • Broad BS-Series Compatibility: — Fits BS50-2, BS60-2, BS65-V, and BS70-2 rammers across multiple machine configurations, including 6-inch, 11-inch, and US-market variants.
  • Restores Full Compaction Performance: — A worn or seized engine causes loss of stroke energy and uneven compaction; replacing with the correct OEM unit brings the rammer back to rated output.
  • Fuel System Integrity: — As a complete engine assembly, the WM 80 includes the combustion and fuel system components sized specifically for the BS-series operating demands, supporting consistent cold-start and run performance.

The WM 80 is a compact two-stroke engine purpose-built to power Wacker Neuson BS-series vibratory rammers. It drives the internal spring-and-piston ramming mechanism that delivers the rapid, high-impact blows needed to compact cohesive soils, clay, and trench backfill where plate compactors cannot operate effectively. When the engine loses compression, fails to start, or runs erratically, compaction output drops immediately — leaving fill material under-compacted and unstable. Replacing the engine with the correct OEM unit restores the stroke energy and cycle rate the machine was engineered to produce.

Part Details

Part Number5100009685
BrandWacker Neuson
Part TypeGenuine OEM
DescriptionWM 80 Engine

Compatibility & Fitment

Name Model Machine Number
BS50-2 10in BS50-2 10in 5100058346
BS50-2 11in US BS50-2 11in US 5100030590
BS50-2 11in BS50-2 11in 5100030591
BS50-2 11in o. bsz BS50-2 11in o. bsz 5100068309
BS50-2 BS50-2 5100014171, 5100016644, 5100016645, 5100016646, 5100016647, 5200000652, 5200000653, 5200000654, 5200000655, 5200000656, 5200000677
BS50-2 6in BS50-2 6in 5100030592
BS60-2 11in BS60-2 11in 5100030600, 5100037561, 5100051580
BS60-2 BS60-2 5100014847, 5200000663, 5200000666, 5200000681, 5200019205
BS65-V BS65-V 5100016651, 5200000669
BS70-2 11in BS70-2 11in 5100030607
BS70-2 BS70-2 5100014905, 5100016652, 5200000670, 5200000671, 5200000684
BS 70-2 BS 70-2 5200000676

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.