The defect
Chrysler (FCA US LLC) is recalling certain 2019-2020 Ram 3500, 4500 and 5500 cab chassis built with a Cummins 6.7L High Output engine. Inadequate warmup protection can cause a lack of oil film on the engine connecting rod bearings while the engine is reaching operating temperature. This can result in engine damage and connecting rod failure, which could potentially puncture the engine block.
The risk
A damaged engine block may leak oil, which can contact hot engine or exhaust components, increasing the risk of a fire.
The remedy
Chrysler will notify owners, and dealers will flash the engine calibration software to enhance the engine warm up protection, free of charge. The recall began September 10, 2020. Owners may contact Chrysler customer service at 1-800-853-1403. Chrysler's number for this recall is W57.
NHTSA's own wording · initiated by MFR
Vehicles covered
| Model | Model years |
|---|---|
| Ram 3500 | 2019, 2020 |
| Ram 4500 | 2019, 2020 |
| Ram 5500 | 2019, 2020 |
Components: ELECTRICAL SYSTEM:SOFTWARE | ENGINE AND ENGINE COOLING:ENGINE:OIL/LUBRICATION
Model years in this recall
NHTSA complaints and the number of recall campaigns for each model year this recall covers.
| Model | Year | Complaints | Recalls |
|---|---|---|---|
| Ram 3500 | 2019 | 137 | 14 |
| Ram 3500 | 2020 | 116 | 11 |
| Ram 4500 | 2019 | 6 | 9 |
| Ram 4500 | 2020 | 4 | 9 |
| Ram 5500 | 2019 | 12 | 9 |
| Ram 5500 | 2020 | 8 | 9 |
Other engine and engine cooling recalls in 2020
16 of the 782 recall campaigns reported to NHTSA in 2020 concerned the engine and engine cooling; Chrysler (FCA US LLC) filed 227 campaigns in all.
| 20V810000 23 Dec 2020 | Navistar, Inc. |
| 20V774000 11 Dec 2020 | Kawasaki Motors Corp., U.S.A. |
| 20V705000 13 Nov 2020 | Hyundai Motor America |
| 20V699000 12 Nov 2020 | Chrysler (FCA US LLC) |
| 20V646000 19 Oct 2020 | Mitsubishi Fuso Truck of America, Inc. |
| 20V591000 25 Sept 2020 | Forest River, Inc. |
| 20V526000 31 Aug 2020 | Motor Coach Industries |
| 20V502000 25 Aug 2020 | Altec Industries Inc. |
NHTSA recalls (public domain) · all recalls of 2020