Jeep Wrangler 2018–2021 — technical service bulletin
Bulletin 0700122 REVA · NHTSA communication 10212420 · issued Mar 22, 2022
Technical service bulletin
communication type
Engine and Engine Cooling
component
2018–2021
model years
4
vehicle entries
Official summary
Water Pump Inlet Tube Fastener Torque This bulletin involves checking the torque on the water pump inlet tube fastenersto possibly eliminate coolant leak at this location. The customer may describe either a coolant leak or the coolant level is low.
What a TSB means. Technical service bulletins are repair guidance manufacturers send to dealers — they are not recalls, and repairs are not automatically free (warranty extensions are an exception worth checking). The full document is available via NHTSA’s vehicle lookup.