Multiquip 31222ZE3791 Gear Reduction GX340K1

The Multiquip 31222ZE3791 is a genuine OEM Gear Reduction GX340K1 designed for GA6HZ, GA6HEB, GAW180HEA, GAW180HE1, GAW180HE, V305EH, and MRH800GS equipment. As a direct OEM component, the 31222ZE3791 is manufactured to the exact specifications required by these machines, ensuring proper fit and correct mechanical interface with the engine drive system. This part is confirmed compatible across Multiquip gasoline-powered generators, arc welders, and walk-behind rollers in the models listed, making it a dependable solution when the original unit needs replacement. Source part number 31222ZE3791 from DHS Equipment to keep your equipment running as intended.

Key Features

• Genuine OEM Gear Reduction: — Manufactured to the original design specification for the GX340K1 engine interface, ensuring the correct gear ratio and torque transmission without substitution guesswork.
• Direct-Fit Replacement: — Designed to mount and connect exactly as the original unit, with matching bolt patterns and shaft dimensions for the GX340K1-powered models in this line.
• Broad Model Compatibility: — Confirmed fitment across GA6HZ, GA6HEB, GAW180HEA, GAW180HE1, GAW180HE, V305EH, and MRH800GS — covering generators, welders, and walk-behind rollers in the Multiquip portfolio.
• Preserves Drive System Integrity: — A correctly functioning gear reduction unit maintains proper output shaft speed and load handling; a worn or failed unit causes slippage, erratic output, or full drive loss.
• Verified OEM Part Number: — Part number 31222ZE3791 maps directly to the Multiquip parts catalog, eliminating the risk of ordering a mismatched reduction unit for your specific engine configuration.

A gear reduction unit steps down the high rotational speed of the engine to a lower, more usable output speed while multiplying torque — allowing the driven component, whether an alternator, welder head, or roller drive system, to operate within its designed load range. Without a properly functioning gear reduction, the driven assembly receives the wrong speed and torque ratio, leading to overloading, premature wear, or a complete inability to perform work. When the gear reduction fails or wears beyond tolerance, performance drops noticeably and continued operation can cause secondary damage to connected drivetrain components.

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.