Wacker Neuson 5000209792 Set Piston Ring 0.25mm

The Wacker Neuson Set Piston Ring 0.25mm is a genuine OEM component designed for VP1135A, VP1135AW, WP1235A, WP1235Aw, AP1135A, and CT24-4A series machines. Sourced directly from Wacker Neuson, this piston ring set carries the same specification as the part originally installed at the factory, ensuring a direct, like-for-like replacement. It is the 0.25mm oversize variant, making it the correct choice for engines that have been bored to the corresponding oversize tolerance. Verify your engine's bore size before ordering to confirm this is the right ring set for your application.

Key Features

• OEM Ring Geometry and Tension: — Manufactured to Wacker Neuson's exact radial thickness and ring tension specs, ensuring correct cylinder wall seal and consistent compression across the ring pack.
• 0.25mm Oversize Fitment: — Matched specifically to engines bored to the 0.25mm oversize dimension — installs directly into the oversize bore without additional machining or shimming.
• Broad Model Compatibility: — Fits VP1135A, VP1135AW, WP1235A, WP1235Aw, AP1135A single direction vibratory plates and CT24-4A walk-behind trowels, covering a wide range of Wacker Neuson compaction and finishing equipment.
• Restored Compression and Oil Control: — Worn or broken piston rings cause blow-by, loss of power, excessive oil consumption, and hard starting; a fresh ring set restores proper cylinder pressure and oil film control.
• Genuine OEM Part: — Part number 5000209792 is an authentic Wacker Neuson replacement, eliminating fitment guesswork and ensuring the component meets the same durability standard as the original.

Piston rings seal the combustion chamber between the piston and the cylinder wall, maintaining the compression pressure needed for reliable engine ignition and full power output. They also regulate oil consumption by preventing lubricant from entering the combustion chamber. When piston rings wear, crack, or lose tension, compression drops, the engine smokes, burns oil, and struggles to develop the power required to drive the compactor plate or trowel effectively. Replacing the ring set during an engine rebuild restores these sealing functions and extends the usable service life of the engine.

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.