PM schedule · Excavator
Cat 320 maintenance schedule
Service intervals, fluids and filters for the Cat 320. Full specs, part numbers and heavy-duty intervals are in goAardvark.
- Series Next Gen (Tier 4 Final / Stage V)
- Engine Cat C4.4
- Emissions U.S. EPA Tier 4 Final, EU Stage V, Japan 2014
- Size class 20–25 t
Source: Cat 320 product page and specifications (cat.com) · Last verified October 29, 2026 · Always confirm with the operator's manual for your serial number
What's due next?
Enter the hour meter (SMU) reading to see what's coming up.
1,000 hr service
at 3,000In 160 hr1,000 hr service
at 4,000In 1,160 hr1,000 hr service
at 5,000In 2,160 hr1,000 hr service
at 6,000In 3,160 hr
Shows the next four service stops. Red means due within 50 hours; amber, within 250. goAardvark tracks this automatically from telematics hours, across every make in your fleet.
The short answer
Service intervals
Pick an interval. Each service includes everything from the shorter intervals that fall on the same hour.
Every 1,000 hours
0 of 1 doneFluids and capacities 3 of 8 shown
| System | Spec | Capacity |
|---|---|---|
| Engine oil | — | 15 L4 gal |
| Hydraulic tank | — | 115 L30.4 gal |
| Fuel tank | — | 345 L91.1 gal |
| Hydraulic system (including tank) | Available in goAardvark | Available in goAardvark |
| Cooling system | Available in goAardvark | Available in goAardvark |
| Swing drive | Available in goAardvark | Available in goAardvark |
| Final drive (each) | Available in goAardvark | Available in goAardvark |
| DEF tank | Available in goAardvark | Available in goAardvark |
5 more systems with specs and capacities are in goAardvark.
Unlock full specsFilters 1 of 1 shown
| Filter | Part number | Change at |
|---|---|---|
| Fuel filters | Available in goAardvark | 1,000 hr |
All 1 filters with part numbers are in goAardvark.
Unlock full specsFleet PM snapshot
Add up to 5 machines to see when each one hits its next service. This is free and needs no sign-up.
| Machine | Hours now | Hours per week | Next service | Around | |
|---|---|---|---|---|---|
1,000 hr at 3,000 160 hr | Dec 8 |
Official Cat maintenance resources
Cat SIS2GO app
Mobile app with free Operation and Maintenance Manuals and parts information; service manuals need a subscription.
Cat parts and service manuals
Explains how to get Cat Operation and Maintenance Manuals digitally, in print, or through a dealer.
Cat S·O·S fluid analysis
Oil, coolant and fuel sampling program run through Cat dealers to catch problems before failure.
Cat Inspect
Mobile app for completing and sharing machine inspections, linked with VisionLink.
Cat Planned Maintenance Self-Service Option
Explains Cat PM kits for 250, 500, 1,000 and 2,000 hour services and what they include.
Parts.cat.com PM kits and self-service options
Order planned maintenance kits and parts by machine model and serial number.
Cat Parts Reference Guides
Model-family guides listing maintenance part numbers by service interval.
Cat VisionLink
Telematics platform for tracking machine health, hours and maintenance across a fleet.
Cat Customer Value Agreements
Dealer-set maintenance and repair plans tailored to how you run your machines.
Cat Equipment Protection Plans
Extended parts and labor coverage beyond the standard warranty, sold through Cat Financial.
Cat 320 / 320 GC / 323 maintenance and service
Cat service page with interval-based parts and fluids for the 320 family, mostly for the 320 GC.
Your 320 isn't the only machine due for service
Most fleets run several makes side by side. Each has its own manual, intervals and telematics portal. goAardvark pulls hours from all of them and builds one PM schedule for the whole fleet.
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Frequently asked questions
Sources
Cat and other product names are trademarks of their owners. goAardvark is not affiliated with any equipment manufacturer. This page summarizes public information for planning; your operator's manual is the authority for your serial number.