Multiquip 12220ZJ1840 Cylinder Head #2 GX610 HC-6223861

The Multiquip 12220ZJ1840 is a genuine OEM Cylinder Head #2 GX610 HC- designed for AR13HA/HAR, AR13H, and AR13HC asphalt ride-on rollers. As a direct OEM component, this cylinder head is manufactured to the exact specifications required by Multiquip for use in GX610-powered equipment. Verify your model code against the AR13H series before ordering to ensure a correct application match. DHS Equipment stocks genuine Multiquip parts so you can get back to compaction work without delay.

Key Features

• Genuine OEM Casting Integrity — Manufactured to OEM specification with correct port geometry, combustion chamber volume, and deck surface tolerances for the GX610 engine.
• Direct-Fit Head Replacement — Engineered to bolt directly onto the GX610 engine block with matching head bolt pattern and gasket surface finish, requiring no machining or adaptation.
• Compatible with AR13H Series Rollers — Confirmed fitment for AR13HA/HAR, AR13H, and AR13HC Multiquip asphalt ride-on rollers powered by the GX610 engine.
• Compression Restoration — A fresh cylinder head restores proper compression ratio, enabling full engine output and consistent roller drum performance on asphalt passes.
• Fuel and Combustion Safety — A correctly sealed cylinder head prevents combustion gas leakage and protects surrounding engine components from heat and pressure damage.

The cylinder head forms the upper seal of the engine's combustion chamber, housing the intake and exhaust valves and providing the surface against which the head gasket seats. On a GX610-powered roller like the AR13H series, a sound cylinder head is essential for maintaining proper compression and combustion efficiency — both of which directly affect engine power output and fuel consumption. When a cylinder head warps, cracks, or develops a compromised gasket seat, compression drops, coolant or oil may enter the combustion chamber, and the engine will run poorly or fail to sustain load under roller operation.

For help confirming fitment or checking parts availability, contact the DHS Equipment team directly.

Part Details

Compatibility & Fitment

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.