Wacker Neuson 5100000364 Set of Piston Rings 0.75

The Wacker Neuson is a genuine OEM Set of Piston Rings 0.75 designed for the GV7000A and GV7003A portable generators, BFS 1318A, BFS 1345, and BFS 1350 series petrol floor saws, and the BPU 5545A reversible vibratory plate compactor. As a direct Wacker Neuson OEM component, part is manufactured to the same specification as the original rings fitted at the factory, ensuring correct ring gap, tension, and groove fit for the engine used across this equipment family. This oversize 0.75 mm ring set is intended for engines that have been bored or honed to accept the next service size, making it an essential part of a proper engine rebuild. Stock this set alongside your other engine rebuild consumables to have the right parts on hand when the job calls for it.

Key Features

• OEM-Spec Ring Profile: — Each ring is ground to the correct radial thickness, axial height, and end-gap tolerance for this engine family, ensuring proper cylinder sealing from the first start after rebuild.
• 0.75 mm Oversize Sizing: — Purpose-built for bored or honed cylinders at the 0.75 mm oversize service dimension — not a standard-bore ring, so confirm your cylinder measurement before ordering.
• Drop-In Engine Rebuild Fit: — Rings install directly onto the piston grooves with no machining or modification to the piston required when the cylinder has been correctly sized to the 0.75 mm oversize specification.
• Broad Cross-Family Compatibility: — A single part number covers the GV7000A and GV7003A generators, BFS 1318A / 1345 / 1350 floor saws, and BPU 5545A vibratory plate compactors, consolidating your parts inventory across multiple machine types.
• Compression and Oil Control Restored: — Worn or broken piston rings cause blow-by, oil consumption, loss of compression, and hard starting. A fresh set restores cylinder pressure and engine efficiency to bring the machine back to full working output.

Piston rings seal the combustion chamber between the piston and the cylinder wall, controlling compression pressure and preventing combustion gases from escaping into the crankcase. They also regulate oil consumption by scraping excess oil from the cylinder wall back into the sump. When rings wear, lose tension, or break, the engine loses compression, burns oil, produces excessive smoke, and eventually becomes difficult or impossible to start. An oversize ring set like the 5100000364 is used during an engine rebuild when the cylinder bore has been machined to remove wear-related taper or scoring — the larger diameter rings fill the increased bore diameter and restore the tight seal needed for efficient combustion and long engine life.

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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