Greenteeth 900 Series stump grinder tooth upgrade kit

October 23, 2026 Jacky Chan

Stump Grinder Teeth Guide: Match Teeth, Pockets and Bolts to Your Machine

Stump grinder teeth wear out, chip on rock and eventually need replacing, and the replacement has to match the cutting system on your machine. This guide explains how the tooth systems we carry are organized, so you can match the tooth, pocket and bolt to your grinder. For a new machine, see our 3-point stump grinder buying guide and the wood chippers and stump grinders collection.

How a tooth system fits together

Tooth: the carbide cutter that does the grinding.
Pocket: the holder bolted to the cutter wheel. The tooth sits in the pocket. Pockets come in straight, angled and reverse versions so the teeth cut a full path across the wheel.
Bolt: holds the pocket to the wheel. The bolt length must match the thickness of your cutter wheel.
Wheel: the disc the pockets bolt onto. Replacement wheel kits are machine-specific.

Teeth, pockets and bolts are designed to work as a set, so match all three to the same series. If you're switching systems, plan to convert the whole wheel.

Step 1: Identify your current system

Check the markings on your existing teeth and pockets, then confirm with your machine's manual or the parts list for your wheel. Note the tooth series, how many pockets are on the wheel, the wheel thickness and the bolt length. If you aren't sure, send us your machine make, model and a photo of the wheel and we will help match the parts: contact Urban Supply.

Greenteeth series by machine size

Greenteeth organizes its LoPro tooth systems by machine horsepower:

Series	Greenteeth's guidance	Teeth and pockets we carry
500 Series LoPro	Most machines under 20 hp	Greenteeth 500 Series Angled LoPro Pocket · Greenteeth 500 Series LoPro Straight Pocket · Greenteeth 500 Series Set, 8 Teeth, 8 Pockets, And 8 Bolts · Greenteeth 500 Series Tooth, Red Deep Dish · Greenteeth 500 Series Tooth, Standard Dish
700 Series LoPro	Most machines from 20 to 45 hp	Greenteeth 700 Series LoPro Angled Pocket · Greenteeth 700 Series LoPro Reverse Pocket · Greenteeth 700 Series LoPro Straight Pocket · Greenteeth 700 Series Set, 8 Teeth, 8 Pockets, And 8 Bolts · Greenteeth 700 Series Tooth, Red Deep Dish · Greenteeth 700 Series Wearsharp Tooth
900 Series LoPro	Most machines from 40 to 85 hp	Greenteeth 900 Series LoPro Angled Pocket · Greenteeth 900 Series LoPro Reverse Pocket · Greenteeth 900 Series LoPro Straight Pocket · Greenteeth 900 Series Wearsharp 2-Sided Tooth, Wheels 22-In.-Smaller · Greenteeth 900 Series Wearsharp 2-Sided Tooth, Wheels 23-In. And Larger · Greenteeth 900 Series Wearsharp Tooth, Wheels 22-In. And Smaller · Greenteeth 900 Series Wearsharp Tooth, Wheels 23-In. And Larger
1100 Series	Higher-horsepower machines	Greenteeth 1100 Series Counterbore Angled Pocket · Greenteeth 1100 Series Counterbore Reverse Pocket · Greenteeth 1100 Series Counterbore Straight Pocket · Greenteeth 1100 Series Threaded Angled Pocket · Greenteeth 1100 Series Threaded Reverse Pocket · Greenteeth 1100 Series Threaded Straight Pocket · Greenteeth 1100 Series Tooth, Red Deep Dish · Greenteeth 1100 Series Wearsharp Tooth

Greenteeth LoPro pockets have a threaded and counterbored hole, so the same pocket can be mounted on either side of the wheel. Red deep-dish teeth cut more aggressively. Standard (green) dish teeth are the more durable choice in rocky ground; the deep-dish profile is not recommended where the soil is about 25% rock or more.

Bolts: Greenteeth Green Bolt · Greenteeth Green Bolt · Greenteeth Green Bolt · Greenteeth Green Bolt · Greenteeth Green Bolt, 2-In. · Greenteeth Green Bolt, 3-In. · Greenteeth LoPro Bolt · Greenteeth LoPro Bolt · Greenteeth LoPro Bolt · Greenteeth LoPro Bolt · Greenteeth LoPro Bolt, 2-In. · Greenteeth LoPro Bolt, 3-In..