The Multiquip 13111ZJ1840 is a genuine OEM Piston Pin GX610 HC- designed for AR13HA/HAR, AR13H, AR13HC, and GA9.7HE equipment. As a direct Multiquip OEM component, part 13111ZJ1840 is manufactured to the exact tolerances required by the GX610 engine platform, ensuring a correct fit in the connecting rod and piston bore every time. This pin is the right choice when rebuilding or servicing the engine on your ride-on roller or gasoline-powered generator, eliminating any guesswork around dimensional compatibility. Source it through DHS Equipment for confidence that you are receiving an authorized Multiquip part.
Key Features
- Precision-Ground OEM Tolerancing — Manufactured to the exact diameter and surface finish specifications required by the GX610 engine, ensuring correct pin-to-bore clearance for proper piston movement.
- Direct Engine Fit — Engineered to drop into the GX610 piston and connecting rod assembly without secondary machining or fitting work on AR13HA/HAR, AR13H, AR13HC, and GA9.7HE platforms.
- Broad Multiquip Fitment — Confirmed for the AR13 series ride-on asphalt rollers and the GA9.7HE gasoline-powered generator, covering multiple equipment types in one part number.
- Engine Integrity Restored — A worn or undersized piston pin causes slop in the connecting rod small-end bearing, leading to piston knock and accelerated bore wear; replacing it restores smooth, low-vibration engine operation.
- Genuine Multiquip OEM Part — Supplied under the original Multiquip part number 13111ZJ1840, fully traceable and backed by Multiquip's OEM parts program.
A piston pin — also called a wrist pin — connects the piston to the small end of the connecting rod, allowing the rod to pivot as the piston travels up and down the cylinder bore. It must maintain an extremely tight dimensional tolerance because any excess clearance causes piston rock and knocking, which accelerates wear on the cylinder wall and rod bearing. When a piston pin wears beyond its service limit or develops surface scoring, engine efficiency drops, oil consumption rises, and left unaddressed, internal damage can spread to the connecting rod and crankshaft. Replacing it with the correct OEM-spec pin is a fundamental step in any GX610 engine rebuild or top-end service.
Part Details
| Part Number | 13111ZJ1840 |
|---|---|
| Brand | Multiquip |
| Part Type | Genuine OEM |
| Description | Piston Pin GX610 HC-6223994 |
Compatibility & Fitment
| Name | Model |
|---|---|
| Rollers | AR13HA/HAR |
| Rollers | AR13H |
| Rollers | AR13HC |
| Gasoline Powered Generators | GA9.7HE |
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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