RT20 Walk-Behind Trencher

Its Best Feature: Superior Financial Traction.

Like all Ditch Witch walk-behind trenchers, the 20.8-hp (15.5-kW) Honda®-powered RT20 comes standard with outboard bearing supports to protect the hardest-working components of the machine.

Heavy-duty frames and components to stand up to the toughest jobsite conditions. Chains, teeth and sprockets are specially designed and manufactured to work together to provide exceptional productivity and last longer than any other digging system. Superior-quality Honda engines run hard all day job after job, year after year.

Every component, every detail of the Ditch Witch RT walk-behind trencher family has been contemplated, evaluated, and executed to create machines that will give you the absolute best bang for your buck—period.

Ditch Witch RT20 Walk-Behind Trencher
Ditch Witch RT20 Walk-Behind Trencher
Ditch Witch RT20 Walk-Behind Trencher
Ditch Witch RT20 Walk-Behind Trencher

Exceptionally reliable and durable Honda engines power the RT12, RT20 and RT24, while the RT16 offers an economical and reliable Briggs & Stratton® Vanguard engine; all models equipped with electric starters.

Rugged Design

Heavy-duty components include a drive linkage that is built to last and designed to simplify operation and maintenance.

Standard outboard bearing support stabilizes and supports the headshaft and auger, for reliable productivity trench after trench.

Ease of use

Easy hand controls: one hand for mobiling, two hands for trenching; all controls—including engine throttle, chain-engagement and boom lift—are grouped conveniently at the operator's station.

No belts to maintain—or break—because Ditch Witch walk-behind trenchers are equipped with direct-driven hydraulic pumps, independent ground-drive hydrostats and a hydraulic gear pump for auxiliary functions.

Your choice of high-flotation tires or heavy-duty tracks, both of which provide the stability and traction to drive across trenches, curbs, and rough terrain; oscillating tracks “walk” or oscillate 12 degrees, for extra stability.

Solid-rubber trail wheel increases stability when traveling over uneven and rough terrain, reduces breakover when loading and unloading and improves leverage when trenching.

Optional, affordable backfill blade is easy to install and reduces cleanup time and manual labor.


Hydraulic, skid-steer-style steering makes RT-series trenchers more maneuverable and more productive.

In tough ground conditions, torque to the trencher chain can be increased by replacing the digging system’s standard 12-tooth sprocket with a 10-tooth sprocket.

Superior Support

Your Ditch Witch equipment is backed by a worldwide network of dealers you can count on for unmatched commitment to your success. From genuine Ditch Witch parts to factory-trained service to expert advice, your Ditch Witch dealer has it all for you.


We’ve made a wide variety of valuable safety information available in one convenient location. Ditch Witch Safe is dedicated to providing the resources you need to operate your equipment safely.

Contact your local dealer for up-to-date information, business hours and what we’re doing to keep our employees—and our customers—safe. We're In This Together.
Find a Dealer