Multiquip 71455022542 Ring Set Oversize 0.25 L40A

The Multiquip 71455022542 Ring Set Oversize 0.25 L40A is a genuine OEM piston ring set designed for L40A series equipment. As a factory-authorized component, this oversize ring set is engineered to the exact dimensional tolerances required for a proper engine rebuild, ensuring correct bore sealing and compression restoration. This part is confirmed to fit L40A models and is sourced directly from Multiquip to guarantee authenticity and dimensional accuracy.

Key Features

• OEM-Matched Oversize Tolerancing — Manufactured to exact 0.25 oversize specifications, ensuring the ring set seats correctly against a freshly honed or bored L40A cylinder wall without gaps or misfits.
• Direct Engine Rebuild Fit — Drops into the L40A piston ring grooves as a direct replacement, maintaining the same land clearances and tension profiles as the original equipment rings.
• Confirmed L40A Fitment — Verified OEM part for L40A series equipment; reference part number 71455022542 when ordering to ensure you receive the correct oversize set for your engine specification.
• Compression and Seal Integrity — A correctly fitted piston ring set maintains combustion chamber pressure, controls oil consumption, and restores lost power output in a worn engine cylinder.
• Genuine Multiquip OEM Quality — Supplied as an authentic Multiquip part, meeting the same material grade and dimensional standards as the rings installed at the factory — critical for a durable, long-lasting engine overhaul.

Piston rings form the dynamic seal between the piston and the cylinder wall, controlling combustion pressure and regulating oil from entering the combustion chamber. Over time, rings wear and lose tension, leading to reduced compression, increased oil consumption, excessive smoke, and diminished engine performance. An oversize ring set like the part is used during an engine rebuild when the cylinder bore has been machined to a larger diameter, restoring that critical seal to like-new performance and extending engine service 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.

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.