Multiquip 21395 Pump Control Hex Rod 12.38L

The Multiquip 21395 Pump Control Hex Rod 12.38L is a genuine OEM component designed for HTX44 and STX55 series hydrostatic ride-on power trowels. As a direct OEM replacement sourced from Multiquip, part 21395 is manufactured to the same specifications as the original, ensuring a correct, trouble-free installation with no guesswork on fitment. This rod is confirmed compatible with HTX44K4, HTX44K5, HTX44Y4, HTX44Y5, STX55J6, and STX55Y6 models. Keeping this control rod in good working condition is essential to maintaining precise hydraulic pump response and consistent blade pitch adjustment on your trowel.

Key Features

• Genuine OEM Construction — Manufactured to original Multiquip specifications, ensuring correct hex dimensions and rod length for proper hydraulic pump control engagement.
• Direct Drop-In Replacement — Engineered to connect exactly as the original rod, with matching hex profile and 12.38L length for straightforward installation in the pump control linkage.
• Broad HTX44 and STX55 Compatibility — Verified fitment across HTX44K4, HTX44K5, HTX44Y4, HTX44Y5, STX55J6, and STX55Y6 hydrostatic ride-on trowel models.
• Precise Hydraulic Response — A correctly dimensioned control rod allows the operator to make accurate pump adjustments, directly affecting blade pitch consistency and finishing quality across the trowel pass.
• Wear Replacement Confidence — A worn or damaged pump control rod introduces slop into the hydraulic control linkage, causing erratic blade response; replacing with a genuine OEM part restores tight, predictable control.

The pump control hex rod is a mechanical linkage component in the hydraulic drive system of a hydrostatic ride-on trowel. It transmits operator input through the control linkage to adjust the hydraulic pump, which in turn governs blade pitch and machine drive. When this rod wears, bends, or becomes damaged, the connection between the operator's input and the pump becomes imprecise, leading to inconsistent blade pitch, uneven concrete finishing, or reduced drive response. Replacing it promptly restores the direct, accurate control the machine was designed to deliver.

For fitment questions or help confirming this part is right for your machine, 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.