Multiquip 300021C Green Spring HHN-31, HTN-27/28

The Multiquip 300021C Green Spring HHN-31, HTN-27/28 is a genuine OEM component designed for HTN27K and HTN28K Whiteman ride-on power trowels. Sourced directly from Multiquip, this spring is manufactured to the same specification as the original part installed at the factory, ensuring a direct, trouble-free replacement. It is confirmed compatible with HTN27K and HTN28K models, making part selection straightforward for operators and service technicians alike.

Key Features

• Genuine OEM Construction — Manufactured to the exact material grade and tension specification of the original spring, ensuring consistent mechanical response within the trowel assembly.
• Direct Drop-In Replacement — Engineered to the same dimensional profile as the original, allowing installation without modification to mounting points or adjacent hardware.
• Confirmed Fitment — Designed specifically for HTN27K and HTN28K Whiteman ride-on power trowels; verify your model before ordering.
• Consistent Blade Pitch Control — A correctly tensioned spring maintains proper mechanical feedback in the pitch adjustment system, keeping blade angle response predictable during finishing passes.
• Long-Term Tension Retention — OEM-grade spring steel resists fatigue and set over repeated compression cycles, maintaining functional tension longer than substandard replacements.

The green spring in a ride-on power trowel serves as a mechanical return or tensioning element within the blade pitch or control linkage system. It provides the resistance and return force needed to keep control inputs responsive and consistent as the operator adjusts blade angle during concrete finishing. When a spring loses tension, stretches, or breaks, blade pitch response becomes erratic or unresponsive, compromising finish quality and placing additional stress on surrounding linkage components. Replacing a worn spring promptly restores the precise mechanical feel that experienced trowel operators depend on.

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.