The Multiquip 13103ZJ1000 is a genuine OEM Piston (0.50) designed for a wide range of Multiquip and Stow flat saws, pavement saws, portable generators, and welder equipment including the SP2, SP2S, CS8CE13H20, CS820H20, SGW-250SS, and GA-9.7 series. As a factory-authorized OEM component, this oversized piston is engineered to the exact dimensional and metallurgical standards set by Multiquip, ensuring a correct fit within the engine bore. Sourced directly through authorized distribution channels, the 13103ZJ1000 is the right choice when performing an engine rebuild or overhaul on compatible equipment. Confirm your model code against the fitment list before ordering to ensure this 0.50mm oversize specification matches your engine's bore condition.
Key Features
- Oversized Bore Specification: — The 0.50mm oversize designation means this piston is machined for a bored or honed cylinder, delivering proper wall clearance and ring seal after an engine rebuild.
- Genuine OEM Metallurgy: — Cast to Multiquip's exact alloy and tolerance specifications, this piston maintains the correct compression ratio and thermal expansion characteristics for the engine family it serves.
- Broad Cross-Equipment Fitment: — Compatible with SP2 and SP2S flat saw series, Stow pavement saw models including CS8CE13H20, CS8CE20H20, CS813H20, and CS820H20, as well as the SGW-250SS welder and GA-9.7 portable generator.
- Restoration of Engine Compression: — A worn or scored piston causes loss of compression, excessive oil consumption, and hard starting; replacing with the correct oversize piston restores full power output and engine efficiency.
- Direct OEM Replacement: — Part number 13103ZJ1000 matches the Multiquip parts catalog exactly, eliminating guesswork during engine assembly and ensuring the component drops into the bore without secondary machining beyond the specified oversize preparation.
A piston is the reciprocating component inside the engine cylinder that transfers combustion force to the crankshaft via the connecting rod, driving the machine's output. In saws, generators, and welders, a correctly fitted piston maintains the compression seal needed for reliable ignition and full power delivery. When a piston wears, becomes scored, or develops ring groove damage, the engine loses compression, burns oil, and may fail to start or run under load — making timely replacement with the correct oversize part essential to restoring the engine to full working condition.
Part Details
| Part Number | 13103ZJ1000 |
|---|---|
| Brand | Multiquip |
| Part Type | Genuine OEM |
| Description | Piston (0.50) |
Compatibility & Fitment
| Name | Model |
|---|---|
| Portable Generators | GA-9.7 |
| Welders | SGW-250SS |
| Stow Pavement Saws | CUTTER3 |
| Stow Pavement Saws | CS8CE13H20 |
| Stow Pavement Saws | CS8CE20H20 |
| Stow Pavement Saws | CC813H20 |
| Stow Pavement Saws | CS813H20 |
| Stow Pavement Saws | CS820H20 |
| Flat Saws | SP213H20A |
| Flat Saws | SP2S20H20A |
| Flat Saws | SP2CE13H20 |
| Flat Saws | SP2SCE20H20 |
| Flat Saws | SP2 |
| Flat Saws | SP2S13H20 |
| Flat Saws | SP2S20H20 |
| Flat Saws | N35244 |
| Stow Pavement Saws | CC8CE13H20 |
| Flat Saws | SP2SCE13H20 |
| Flat Saws | SP213H20 |
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.
