Ram 3500 Maintenance Schedule
Professional Ram 3500 Service for HEMI and Cummins
Why Your 3500 Needs a Specific Schedule
A Ram 3500 is a heavy-duty tool. Its maintenance schedule isn’t one-size-fits-all. The intervals for the 6.4L HEMI V8 are different from the 6.7L Cummins Diesel. Even with the Cummins, the standard 68RFE transmission and the High-Output Aisin transmission have different service needs. Most importantly, a 1-ton truck is built to tow and haul. This activity, defined by Ram as ‘Severe Duty,’ generates extreme heat and stress. For any owner towing a fifth-wheel, running a work fleet, or navigating dusty ranch roads, the ‘Severe Duty’ schedule is the only schedule that will protect your investment and prevent catastrophic, five-figure repairs to your drivetrain.
From the 16 spark plugs in the HEMI to the critical 10W-30 oil in the 2019+ Cummins, our certified technicians understand the unique demands of your truck. Following this schedule is the key to reliability and long-term value.
Ram 3500 Maintenance Intervals
Below are the recommended maintenance schedules. Always follow your vehicle’s Oil Change Indicator, but do not exceed the mileage caps. We recommend the Severe Duty schedule for nearly all Ram 3500 owners.
Ram 3500 / 6.4L HEMI V8 Schedule
~8,000-Mile Service
- ✓ Oil and filter change (or as indicated)
- ✓ Tire rotation
- ✓ Comprehensive vehicle inspection (brakes, fluids, battery)
30,000-Mile Service
- ✓ Replace engine air filter
- ✓ Replace cabin air filter
- ✓ Inspect CV/Universal joints
- ✓ Severe Duty: Change front & rear axle (differential) fluid
- ✓ Severe Duty: Change transfer case fluid (4×4)
60,000-Mile Service
- ✓ Change automatic transmission fluid and filter
- ✓ Normal Duty: Change front & rear axle (differential) fluid
- ✓ Normal Duty: Change transfer case fluid (4×4)
100,000-Mile Service
- ✓ Replace all 16 spark plugs
- ✓ Inspect/Replace PCV valve
150,000-Mile Service
- ✓ Flush and replace engine coolant
Ram 3500 / 6.7L CUMMINS DIESEL Schedule
~8,000-Mile Service (or per indicator / 350 hrs)
- ✓ Oil and filter change (CRITICAL: 10W-30 Oil for 2019+)
- ✓ Tire rotation
- ✓ Lubricate front driveshaft fitting (4×4)
- ✓ Check all fluid levels (DEF, Coolant, Brake)
15,000-Mile Service
- ✓ Replace BOTH fuel filters (chassis & engine mounted)
Technician Tip: Skipping this service is the #1 cause of high-pressure fuel pump failure. This is a non-negotiable service.
30,000-Mile Service
- ✓ Replace engine air filter
- ✓ Severe Duty: Change front & rear axle (differential) fluid
- ✓ Severe Duty: Change transfer case fluid (4×4)
- ✓ AISIN AS69RC Trans: Change transmission fluid
- ✓ 68RFE Trans (Severe Duty): Change trans fluid & filter
60,000-Mile Service
- ✓ Normal Duty: Change front & rear axle (differential) fluid
- ✓ Normal Duty: Change transfer case fluid (4×4)
- ✓ 68RFE Trans (Normal Duty): Change trans fluid & filter
- ✓ AISIN AS69RC Trans: Replace transmission filter
75,000-Mile Service (2019+)
- ✓ Replace Crankcase Ventilation (CCV) Filter
This service resets the “Perform Service” message on your dash.
150,000-Mile Service
- ✓ Flush and replace engine coolant
Simplified Ram 3500 Maintenance Charts
6.4L HEMI V8 (Gasoline) Chart
| Mileage | Normal Duty Service | Severe Duty Service (Recommended) |
|---|---|---|
| ~8,000 | Oil & filter change, Tire rotation | Oil & filter change, Tire rotation |
| 30,000 | Replace Air Filters, Inspect Axles/Transfer Case | Replace Air Filters, **Change Axle & Transfer Case Fluid** |
| 60,000 | **Change Transmission Fluid**, **Change Axle & Transfer Case Fluid** | **Change Transmission Fluid** (Axles/Case done at 30k) |
| 100,000 | **Replace all 16 Spark Plugs**, Replace PCV Valve | **Replace all 16 Spark Plugs**, Replace PCV Valve |
| 150,000 | Flush & Replace Engine Coolant | Flush & Replace Engine Coolant |
6.7L Cummins (Diesel) Chart
| Mileage | Key Service Item |
|---|---|
| ~8,000 | Oil & filter change (Use **10W-30** on 2019+), Tire rotation, Lube driveshaft |
| 15,000 | **Replace BOTH Fuel Filters** (Chassis & Engine) |
| 30,000 | Replace Air Filter, **Aisin Trans Fluid Change**, **Severe Duty: Axle & Transfer Case Fluid** |
| 60,000 | **68RFE Trans Fluid & Filter**, **Aisin Trans Filter**, **Normal Duty: Axle & Transfer Case Fluid** |
| 75,000 | **Replace CCV Filter** (2019+ models) |
| 150,000 | Flush & Replace Engine Coolant |
Ram 3500: Frequently Asked Questions
What is ‘Severe Duty’ and does it apply to my Ram 3500?
Severe Duty is any driving that includes frequent towing, hauling heavy loads, operating in dusty or off-road conditions, or excessive idling. For a Ram 3500, this is its intended purpose. We strongly recommend all Ram 3500 owners follow the ‘Severe Duty’ schedule.
What’s the most important service for my 6.7L Cummins?
For 2019+ Cummins, using the correct 10W-30 oil (not 15W-40) is critical to prevent engine failure. Also, you must replace both fuel filters every 15,000 miles to protect the high-pressure fuel pump.
How do I know if I have the 68RFE or Aisin transmission?
The heavy-duty Aisin transmission is typically paired with High-Output (H.O.) Cummins engines. They have different service intervals (Aisin fluid change at 30k, 68RFE at 60k). We can confirm which one you have.
How often do I change spark plugs on the 6.4L HEMI?
The interval is 100,000 miles. This is a major service because the 6.4L HEMI has two spark plugs per cylinder, for a total of 16 plugs that need to be replaced.
Where can I get Ram 3500 service near me?
Visit Belle Fourche CDJR, serving Spearfish, Sturgis, Deadwood, and the greater Black Hills area. Our certified technicians handle all Ram 3500-specific services.
Ready to Schedule Your Ram 3500 Service?
Don’t wait for a warning light. Keep your heavy-duty truck running its best by scheduling service today. Our experts know the difference between a 68RFE and an Aisin. Use our online service scheduler or call (605) 892-2643 to book your next appointment.
For more maintenance resources, explore our Service Center or check current Service Specials.
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