The Multiquip 2672340203 Piston 0.25 O.S. is a genuine OEM oversized piston designed for GA-6RE and GA-6REA portable generators. As a factory-spec component sourced directly through Multiquip's OEM supply chain, this piston is engineered to the exact dimensions required for a 0.25 oversize bore rebuild, ensuring a proper combustion seal and correct ring groove alignment. It is the right choice when a standard-bore piston is no longer suitable due to cylinder wear, and a machined overbore has been performed. Confirmed fitment covers the GA-6RE and GA-6REA generator models.
Key Features
- OEM Oversized Specification: — Cast and finished to the exact 0.25 oversize dimensions Multiquip specifies, ensuring correct piston-to-wall clearance after a professional overbore.
- Direct Engine Rebuild Fit: — Drops into a properly bored GA-6RE or GA-6REA cylinder without secondary machining, provided the bore has been taken to the 0.25 oversize dimension.
- Confirmed Generator Fitment: — Verified for GA-6RE and GA-6REA portable generator models; always cross-reference your bore measurement before ordering an oversized piston.
- Restores Compression and Power Output: — A correctly sized piston seals combustion pressure as designed, restoring the generator's rated output and preventing the misfires and oil consumption that a worn or improperly fitted piston causes.
- Fuel System Integrity: — Proper piston fit controls blow-by and prevents raw fuel from entering the crankcase oil, protecting downstream engine components during sustained generator operation.
The piston is the reciprocating component at the heart of the engine's combustion cycle — it compresses the air-fuel mixture, transfers the force of combustion to the crankshaft via the connecting rod, and helps seal the cylinder bore. In a generator engine, consistent piston-to-wall clearance is critical to maintaining stable voltage output and fuel efficiency. When a cylinder wears beyond the standard tolerance, an oversized piston — paired with a correctly bored and honed cylinder — restores that seal. Running an engine with a worn or undersized piston leads to low compression, excessive oil consumption, and eventual engine failure.
Part Details
| Part Number | 2672340203 |
|---|---|
| Brand | Multiquip |
| Part Type | Genuine OEM |
| Description | Piston 0.25 O.S. |
Compatibility & Fitment
| Name | Model |
|---|---|
| Portable Generators | GA-6RE |
| Portable Generators | GA-6REA |
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.
