King Quad Sure 4 4WD Actuator Replaces 27421-31HA0 / 27421-31HA1

FEATURES

Presale! This kit will be in stock and shipping 4/1/2026

Never have 4WD issues again!  This kit eliminates all electric components associated with your OEM 4WD system.

This kit will get your 4WD working again no matter what! It eliminates all electronics required for your 4WD. The Sure 4 manual actuator replaces your faulty electronic actuator.  Our Sure 4 is controlled with the supplied handle bar mounted Tank Lever and pull cable.  Simply turn the shift knob to the desired position and you’re locked in 2WD,4WD or Diff Lock! Functional, reliable, and comes with a limited life-time guarantee!

Locked into 2WD

Locked into 4WD

Locked into Diff Lock

VEHICLE FITMENT

• Should fit all 2009-2014 King Quad 500 but make sure your actuator part number matches below.
• Replaces OEM part number 27421-31HA0 and 27421-31HA1

INCLUDES

• Sure 4 Manual Actuator with Seal
• Tank lever (mounts above thumb throttle) with 2WD/4WD/Diff Lock
• Pull Cable
• Rubber Gasket
• Parts Bag with Plugs and Hardware

INSTALLATION

All of our products are completely plug and play, no cutting, no drilling and no splicing wires!  Check out the installation video below.

For tips on shifting adjustments, watch our spring adjustment video here.

This video is of a Honda but it is the same installation process. We will update with a King Quad video soon! Full Installation Video: 

Honda Sure 4: Why It’s Hard to Get Into Diff Lock and How to Fix It