The Multiquip 71428022621 is a genuine OEM Vintage Piston With Ring.25MM L40A MV designed for L40A series equipment. As a direct OEM replacement sourced through Multiquip's parts program, this component delivers the exact specification needed to restore proper engine function on qualifying L40A machines. Confirm your model code against your equipment documentation before ordering to ensure compatibility. DHS Equipment supplies this genuine Multiquip part to keep your equipment performing as originally engineered.
Key Features
- Genuine OEM Specification — Manufactured to the original piston and ring tolerances for the L40A MV engine, ensuring correct bore clearance and ring seal integrity on reassembly.
- Oversized .25MM Grind — This .25MM oversize piston is intended for use after cylinder reboring, restoring proper compression and engine balance when the standard bore is worn beyond service limits.
- Direct L40A Fitment — Engineered specifically for L40A series equipment; verify your engine designation matches L40A MV before ordering.
- Ring Set Included — Supplied as a piston and ring assembly, simplifying the rebuild process and ensuring the ring-to-groove fit matches OEM design intent.
- Compression Restoration — A correctly sized piston and ring set re-establishes proper cylinder compression, which directly impacts engine power output, fuel efficiency, and oil consumption control.
The piston is the reciprocating component inside the engine cylinder that transfers combustion energy to the crankshaft. Over time, the piston and rings wear, allowing combustion gases to bypass into the crankcase — a condition known as blowby — which causes loss of power, increased oil consumption, and eventual engine failure. An oversized piston, like this .25MM variant, is fitted after the cylinder bore has been professionally machined to a larger diameter, restoring the correct running clearance and compression seal that the engine depends on for reliable operation.
Part Details
| Part Number | 71428022621 |
|---|---|
| Brand | Multiquip |
| Part Type | Genuine OEM |
| Description | Vintage Piston With Ring .25MM L40A MV |
Compatibility & Fitment
| Name | Model |
|---|---|
| L40A | L40A |
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.
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