Bobcat Trencher & Digger Attachments for Utility Installation & Excavation

Dig Smarter, Trench Faster, Get the Job Done Right

Make quick work of digging and trenching projects with powerful Bobcat trencher and digger attachments. Designed for precision and efficiency, these attachments help you cut clean trenches, move soil, and prepare the ground for underground utilities, irrigation systems, drainage lines, and more.

Trencher Attachments for Irrigation, Drainage & Utility Lines

A trench sounds simple: long, narrow and the same depth from end to end. Digging one with a shovel, or even a bucket, is anything but.

A trencher attachment cuts a clean, even trench in one pass and piles the dirt neatly beside it, ready to backfill. It turns a weekend of digging into an afternoon of work.

Bobcat Trencher Attachment

How a Trencher Works

A trencher works a lot like a chainsaw for dirt. A chain lined with digging teeth runs around a long boom. As the chain turns, the teeth cut into the ground and carry soil up out of the trench. A spiral auger at the top moves that soil off to the side so it doesn't fall back in.

Lowering the boom sets the depth. Many trenchers also have a crumber that cleans loose soil from the bottom of the trench, and side shift that slides the boom left or right so you can dig close to walls, fences and foundations.

Tips for Cleaner Trenches

Call 811 before you dig. It's free, and it marks buried utility lines along your route.

Walk the route first and clear rocks, roots and debris you can see.

Travel slowly and steadily, and let the chain set the pace.

Keep chain tension adjusted. A loose chain wears fast and can jump off.

Replace worn teeth before they slow you down.

What You Can Do With a Trencher

Anything that has to go underground in a straight line.

Install irrigation

Run irrigation lines for lawns, gardens and sports fields.

Dig drainage

Dig French drains, downspout runs and foundation drains.

Bury electrical

Bury electrical and low-voltage lines for lighting, gates and outbuildings.

Lay water lines

Lay water and service lines to barns, shops and new homes.

Run fiber & cable

Run fiber and cable for internet and communications.

Cut narrow footings

Cut narrow footings for landscape walls and edging.

Common Types of Trenchers & Diggers

Four tools, from long utility runs to spot digging and pavement cuts.

Long straight runs

Chain Trenchers

The standard choice for long, straight runs at a set depth. Sizes range from small units for mini track loaders to heavy models for full-size loaders.

Spot digging

Diggers

A shorter, simpler tool for spot digging, short trenches, removing rocks and stumps, pruning roots and transplanting shrubs.

Finished lawns

Vibratory Plows

These pull pipe or cable through the ground with a vibrating blade, leaving only a thin slit in finished lawns.

Asphalt & concrete

Wheel Saws

A spinning toothed wheel that cuts narrow trenches through asphalt and concrete for street and utility work.

How to Choose the Right Trencher

Four quick checks and you'll land on the right setup.

Depth and width

Start with what you're burying and how deep it needs to go. Trenchers are rated for a maximum dig depth.

Soil type

Standard teeth handle dirt and sand. Rock or combination teeth hold up better in clay and rocky ground.

Length of the job

Long, repeated runs call for a trencher. Short trenches and spot digging may only need a digger.

Your machine

Mini track loaders fit through gates and work in finished yards. Larger loaders dig deeper and faster. Check that your hydraulic flow matches the trencher.

Frequently Asked Questions

How deep can a trencher dig?
It depends on the model. Smaller trenchers dig about two to three feet deep, and larger ones reach four to five feet. Choose one rated for the depth your line requires.
What's the difference between a trencher and a digger?
A trencher cuts long, even trenches at a set depth. A digger is a smaller, more versatile tool for short trenches, spot digging and removing rocks, stumps and roots.
Can a mini track loader run a trencher?
Yes. Mini track loaders are a great fit for trenching in yards and tight spaces, because they fit through gates and are light on finished turf.
What teeth should I use in rocky ground?
Use rock teeth or a combination tooth pattern. They hold up much better than standard teeth in clay, gravel and rock.
Bobcat Trencher Attachment
Ready to dig

Find the Right Trencher

Browse every trencher and digger we carry. Not sure how deep you need to go? Give us a call and we'll match a trencher to your machine, your soil and your run.