2017–2018 Dynamax Isata Recall: These water pumps may leak coolant
NHTSA campaign 17V707000 · Engine and Engine Cooling · filed Nov 10, 2017 · verified Jul 30, 2026
The defect
Forest River, Inc. (Forest River) is recalling certain 2017-2018 Dynamax Isata vehicles, models ISC36DSD, ISC35DBD, ISC36DSD4X4, built on RAM chassis equipped with Cummins 6.7L Turbo Diesel engines that have Concentric-brand water pumps without a vent hole. These water pumps may leak coolant.
The risk
The leaking water pump can increase the risk of an engine compartment fire.
Check whether your specific vehicle is affected
Recall campaigns often cover only certain VIN ranges. Enter your VIN on the official NHTSA site to confirm whether your vehicle is included and whether the repair is still open.
Check VIN on NHTSA →The fix — what to do
Forest River will notify owners and Chrysler/RAM dealers will replace the water pumps, free of charge. The recall began on December 4, 2017. Owners may contact Forest River customer service at 1-574-262-3474 extension 212, or Chrysler customer service at 1-800-853-1403. Forest River's number for this recall is 55-0564.
Owners may also contact the National Highway Traffic Safety Administration Vehicle Safety Hotline at 1-888-327-4236 (TTY 1-800-424-9153), or go to www.safercar.gov.
Affected vehicles
Related recalls
More Dynamax Isata recalls
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Other campaigns involving Dynamax vehicles
Source: NHTSA recall database, campaign 17V707000 (manufacturer number 55-0564). Data last verified Jul 30, 2026.