The Multiquip 13012Z4K004 is a genuine OEM Piston Ring Set (0.50) designed for a range of Multiquip equipment powered by compatible small engines, including GAC2.2HZ generators, SP1G saws, and MVC82VH, MVC82VHW, and MVH158GH plate compactors. As a direct OEM replacement, 13012Z4K004 delivers the exact dimensional tolerances and ring end-gap specifications your engine requires for a proper rebuild. Sourced directly through Multiquip's authorized parts network, this set is the correct choice when restoring an engine to original operating condition. DHS Equipment stocks genuine Multiquip parts to help you get the right component the first time.
Key Features
- Oversize 0.50mm Bore Specification — Engineered to the 0.50mm oversize dimension, this ring set is intended for engines that have been bored out during a rebuild, ensuring proper compression seal against the cylinder wall.
- Genuine OEM Ring Material and Tension — Manufactured to Multiquip's original ring tension and surface finish specifications, supporting correct oil control and compression retention across the ring pack.
- Drop-In Engine Rebuild Fit — Designed to install directly onto the OEM piston for compatible engines, with ring profiles matched to the original piston grooves for correct seating without hand-fitting or modification.
- Broad Equipment Compatibility — Fits GAC2.2HZ generators, SP1G saws, and MVC82VH, MVC82VHW, and MVH158GH plate compactors, making it a practical stocking part for mixed-fleet service operations.
- Restores Full Compression and Power Output — Worn or broken piston rings cause compression loss, oil burning, and hard starting. Replacing with a correctly sized OEM ring set restores engine compression and fuel efficiency to original levels.
Piston rings form the critical seal between the piston and the cylinder wall inside a small engine. They serve three functions simultaneously: holding compression pressure in the combustion chamber, transferring heat away from the piston into the cylinder wall, and controlling the thin film of oil that lubricates the cylinder bore. When piston rings wear out or break, compression drops, oil migrates into the combustion chamber, and the engine begins burning oil, losing power, and producing excessive smoke. Replacing the ring set with a properly sized oversize set — like this 0.50mm version — during an engine rebore restores the original sealing performance and brings the engine back to full working condition.
Part Details
| Part Number | 13012Z4K004 |
|---|---|
| Brand | Multiquip |
| Part Type | Genuine OEM |
| Description | Piston Ring Set (0.50) |
Compatibility & Fitment
| Name | Model |
|---|---|
| Gasoline Powered Generators | GAC2.2HZ |
| Saws | SP1G |
| Plate Compactors | MVH158GH |
| Plate Compactors | MVC82VH |
| Plate Compactors | MVC82VHW |
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.
