Wacker Neuson 5100005345 Piston 0,25

The Wacker Neuson Piston 0,25 is a genuine OEM component designed for the BFS735 and BFS 735A gasoline powered floor saw series. Sourced directly from Wacker Neuson, this piston is manufactured to the exact dimensional and material tolerances required for proper engine function in these machines. Confirmed fitment spans multiple BFS735 configurations, making the correct piston selection across the BFS735 and BFS 735A floor saw range.

Key Features

• OEM Piston Tolerancing — Machined to the exact bore diameter and compression height specified for the BFS735 engine, ensuring correct ring seal and combustion chamber geometry.
• Drop-In Engine Replacement — Matches the original piston profile, wrist pin bore, and ring groove dimensions for straightforward installation without machine modification.
• BFS735 and BFS 735A Fitment — Verified across multiple BFS735 model configurations and the BFS 735A gasoline powered floor saw.
• Restores Full Power Output — A worn or damaged piston causes loss of compression, reduced cutting power, and hard starting; replacing with a correctly sized OEM piston brings engine output back to specification.
• Fuel System Integrity — Proper piston fit maintains the correct compression ratio, preventing rich running conditions, excessive fuel consumption, and oil contamination that result from a worn bore fit.

The piston is the reciprocating component at the heart of the engine's combustion cycle — it transmits the force of igniting fuel to the crankshaft and must maintain a precise seal against the cylinder bore to sustain compression. In a floor saw like the BFS735, where the engine works under sustained load during concrete and asphalt cutting, a correctly fitted piston is critical to consistent power delivery and clean combustion. When a piston wears, cracks, or loses ring land integrity, compression drops, the engine runs rough or fails to start, and internal components are exposed to accelerated wear.

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.