Unsure what bucket teeth you’ve got on your digger? Use this handy guide to find out.

There are several ways to determine your bucket tooth fitment style and size. At The Wearparts Depot we only stock bucket teeth for ۳-ton diggers and larger. Before we start, there is one obvious place to look for a part number.

The part number of a bucket tooth is typically cast into the interior wall or rear edge of the tooth pocket. If you can’t locate it or make it out, then follow our guide below.

۱٫ Side pin or top pin

SIDE PIN

There are many side pin bucket tooth fitment styles. By far the most popular is the Cat J-Series. We also stock Komatsu bucket teeth.

Here’s how to tell which is which.

CAT J-SERIES

Cat J-Series pins run horizontally through the tooth and adapter.

J-series has a pin and separate retainer. The pins have a recessed groove at one end to seat the retainer that is inserted into the adapter.

J-Series adapters have a recessed area on one side of the nose that retainer is inserted into.

View our Cat J-Series bucket tooth selection here

KOMATSU

Komatsu bucket teeth have an integrated centre-ring pin and retainer that looks like this.

Komatsu adapters can be distinguished from Cat J-Series because they have no recessed area for a retainer on the nose.

View our Komatsu bucket tooth selection here

TOP PIN

ESCO CONICAL 

ESCO Conical bucket teeth have a vertical pin system. The hole is on the top and is rectangular shape with a square top and rounded bottom.

The pins and rubber retainers look like this:

The top end of the tooth tends to have a rounded shape that fits into a concave counterspace on the adapter.

View our ESCO Conical bucket tooth selection here.

۲٫ Machine size

Once you have identified the fitment style the next step is to confirm the fitment size. The quickest way to narrow down where to look is to use the machine size. The correct size adapters should be fitted to a bucket that is designed for a specific machine size. Correct advice isn’t always followed but it is a good start to help identify your fitment size.