CAT 314E Engine Oil Change & Other Routine Maintenance Tasks - Part 7

Written by Luis Montes Updated On  January 15, 2026

In the previous post, we showed you the location of the grease fittings on the Cat 314E excavator and the proper way to service them.

Next, a straightforward task: replacing the cab air filter on the CAT 314E excavator.

We also have a video version on the Tekamo HD YouTube channel. Check it out.

If you don’t have the time to perform the service yourself or want to enroll in a preventative maintenance program for your heavy equipment, contact Tekamo HD to schedule a heavy-duty mechanic.

Remove, Compare, Install

The location of the cab air filter varies among brands. Some have it inside the cab, behind the seat, or underneath it, such as on the John Deere 85G excavator. Our article “500 Hour Service Interval Guide for a John Deere 85G Excavator – Part 5” covers how to change the cab air filter for that particular piece of equipment.

The cabin air filter on the Cat 314E is located in a lockable compartment on the left-hand side, next to the cabin door.

To remove the filter, first pull and then lift it.

We always like to double-check we’ve got the right filter by comparing it with the old one, especially when getting an aftermarket filter. Check their lengths, outside, inside, and ends.

Next Post

Visit the Fortis HD blog for more service interval posts.

Be sure to check out the other posts we have in this series to cover every routine task for your Cat 314E excavator:

• How to change the engine oil and filter.
• How to replace the hydraulic filters.
• How to adjust the track tension properly.
• How to change the engine air filters.
• How to change the final drive oil.
• Location of the grease fittings and how to service them.

Fortis HD has the tools to efficiently service any type of heavy equipment. Our mechanics rigorously test every product in the field.

Visit our tools section to purchase the highest quality heavy-duty tools in the industry.