2021 Ram 3500 Engine cooling Problems
- Complaints
- 3about this part
- Share
- 5%of 62 total for the year
- Median mileage
- 190,000miles
- Trend
- Not enough dataFewer than 15 complaints, too few for a reliable trend.
NHTSA recorded 3 complaints about the engine cooling of the 2021 Ram 3500, 5% of the 62 complaints for this model year. Where a mileage was given, the median is 190,000 miles.
Fewer than 15 complaints name this part, so treat the figures as a rough indication only.
Example complaints
Selected from NHTSA records; personal details are removed. They are consumer reports, not findings.
“The contact owns a 2021 Ram 3500. The contact stated while driving at an undisclosed speed, the engine temperature gauge became extremely elevated. The contact pulled over to the side of the road and an independent mechanic briefly inspected the vehicle and informed the contact to refill the coolant reservoir. The contact refilled the reservoir and after driving for approximately thirteen minutes, the failure reoccurred. The vehicle was towed to an independent mechanic where it was diagnosed that the EGR cooler and EGR valve needed to be replaced. The vehicle was not repaired. …”
NHTSA complaint #11595764, filed 2024-06, 190,000 miles“The contact owns a 2021 Ram 3500. The contact received notification of NHTSA Campaign Number: 25V552000 (Back Over Prevention) and 25V720000 (Engine and Engine Cooling); however, the part to do the recall repair was not yet available. The local dealer was contacted. The contact stated that the manufacturer had exceeded a reasonable amount of time for the recall repair. The manufacturer was made aware of the issue. The contact had not experienced a failure.”
NHTSA complaint #11727064, filed 2026-03“The contact owns a 2021 Ram 3500 . The contact received notification of NHTSA Campaign Numbers: 25V720000 (Engine and Engine Cooling) and 25V552000 (Back Over Prevention) however, the part to do the recall repair was not yet available. The dealer was contacted. The vehicle was not diagnosed or repaired. The dealer confirmed that the remedy parts were not yet available and were on backordered. The manufacturer was made aware of the issue. The contact stated that the manufacturer had exceeded a reasonable amount of time for the recall repair. The contact had not experienced a failure.”
NHTSA complaint #11741292, filed 2026-06Related service bulletins
- 10248594Sep 12, 2023Emissions Recall 06A - Vehicle Emission Control Information Label
- 10244433Sep 12, 2023Emissions Recall 06A - Vehicle Emission Control Information Label
- 10243261Aug 18, 2023Diesel Particulate Filter (DPF) - X97 Warranty Extension Installation of Particulate Matter (PM) sensor.
- 10243212Aug 1, 2023Emission Recall Y43 - Particulate Matter Sensor (Date on document incorrectly states "July 2023")
Engine cooling: other model years
| Year | Complaints | Share of year |
|---|---|---|
| 2023 | 1 | 6% |
| 2022 | 2 | 1% |
| 2021 | 3 | 5% |
| 2020 | 4 | 3% |
| 2019 | 5 | 4% |
| 2018 | 3 | 0% |
| 2017 | 4 | 1% |
| 2016 | 4 | 3% |
| 2015 | 3 | 2% |
| 2014 | 5 | 2% |
| 2013 | 2 | 2% |
Other parts of the 2021 Ram 3500
17 complaintsTransmission and drivetrain
11 complaintsEngine
10 complaintsOther or unknown
9 complaintsWheels
7 complaintsBrakes
6 complaintsFuel system
5 complaintsBody and structure
5 complaintsBack-over prevention (rear camera)
3 complaintsExterior lighting
3 complaintsTires
3 complaintsSuspension
2 complaints
← All problems reported for the 2021 Ram 3500
About this data. Data from NHTSA (ODI) complaints, recalls, TSBs and investigations, updated Oct 27, 2026. Complaints are unverified consumer reports and may be duplicated or inaccurate.
To check a specific vehicle for open recalls, use its VIN at nhtsa.gov/recalls. Methodology