PM schedule · Excavator
Cat 336 maintenance schedule
Service intervals, fluids and filters for the Cat 336. Full specs, part numbers and heavy-duty intervals are in goAardvark.
- Series S/N prefix DKS (per Cat service center page)
- Size class 35–40 t
Source: Cat 336 / 336 GC Maintenance & Service page (cat.com service center) · 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.
3,000 hr service
Includes 1,000 hr
at 3,000In 160 hr2,000 hr service
Includes 1,000 hr
at 4,000In 1,160 hr5,000 hr service
Includes 1,000 hr
at 5,000In 2,160 hr6,000 hr service
Includes 3,000 hr, 2,000 hr, 1,000 hr
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 3 doneFluids and capacities 3 of 5 shown
| System | Spec | Capacity |
|---|---|---|
| Engine oil | Cat DEO-ULS | 32 L8.5 gal |
| Hydraulic oil | Cat HYDO Advanced | 161 L42.5 gal |
| Swing drive | Cat TDTO | 18 L4.8 gal |
| Final drive | Available in goAardvark | Available in goAardvark |
| Hydraulic pump coupling | Available in goAardvark | Available in goAardvark |
2 more systems with specs and capacities are in goAardvark.
Unlock full specsFilters 2 of 14 shown
| Filter | Part number | Change at |
|---|---|---|
| Engine oil filter | Available in goAardvark | 1,000 hr |
| Hydraulic return filter | Available in goAardvark | 3,000 hr |
| Fuel/water separator element | Available in goAardvark | Available in goAardvark |
| Secondary fuel filter | Available in goAardvark | Available in goAardvark |
| Fuel tank cap | Available in goAardvark | Available in goAardvark |
| DEF pump filter | Available in goAardvark | Available in goAardvark |
| DEF tank filter | Available in goAardvark | Available in goAardvark |
| DEF manifold filter | Available in goAardvark | Available in goAardvark |
| Engine air filter, primary | Available in goAardvark | Available in goAardvark |
| Engine air filter, secondary | Available in goAardvark | Available in goAardvark |
| Cab fresh air filter | Available in goAardvark | Available in goAardvark |
| Cab recirculating air filter | Available in goAardvark | Available in goAardvark |
| Hydraulic tank breather | Available in goAardvark | Available in goAardvark |
| Engine crankcase breather | Available in goAardvark | Available in goAardvark |
All 14 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 | |
|---|---|---|---|---|---|
3,000 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 336 / 336 GC maintenance and service
Cat service page with interval-based parts and fluids for the 336 and 336 GC by serial prefix.
Your 336 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.