TSB 9100639 — Jeep and Ram Service bulletin
9100639 is a service bulletin on file with NHTSA for 2 Jeep and Ram models, 2014–2018 model years. A TSB is factory repair guidance, not a recall — the repair is not automatically free.
What the bulletin says. Verify Reman part number availability. Order the "R" part number for all orders: Warranty, Mopar, customer pay and service contract. Order "68" part number for New unsold units only.
NHTSA's own summary of the document, quoted from the public manufacturer-communications file.
Vehicles and model years 9100639 names
Every document filed under 9100639
| Document ID | Filed | Type |
|---|---|---|
| 9100639 | August 7, 2025 | Service bulletin |
What 9100639 covers
Engine — the component vocabulary NHTSA files this communication under.
Questions buyers ask
What is TSB 9100639?
9100639 is a service bulletin filed with NHTSA by Jeep and Ram, covering 2 Jeep and Ram models across the 2014–2018 model years. NHTSA's summary reads: Verify Reman part number availability. Order the "R" part number for all orders: Warranty, Mopar, customer pay and service contract. Order "68" part number for New unsold units only.
Which vehicles does 9100639 cover?
NHTSA's file names Jeep Grand Cherokee (2014–2017); Ram 1500 (2014–2018). A bulletin number can be re-issued against more vehicles later, so check the model-year list on this page against your own.
Is TSB 9100639 a recall, and is the repair free?
No. 9100639 is repair guidance the manufacturer sent its dealers, not a safety defect finding. You pay for the work unless the vehicle is still under warranty. Recall repairs, by contrast, are always free.
How do I get the full text of 9100639?
Take the document ID to a dealer's service desk, or search NHTSA's manufacturer-communications records. This page carries every document ID filed under 9100639, its date, and NHTSA's own summary from the public file.
Every number on this page is a count of records in the federal complaint, recall, and investigation files published by NHTSA's Office of Defects Investigation. This page lists only what NHTSA's manufacturer-communications file records under 9100639. Check any specific vehicle's open recalls by VIN at nhtsa.gov/recalls.