Ram bulletin 41C
What it says6.4L Crankshaft Linear Compensation ECM Misfire Monitoring - Dealer Notification NHTSA’s full summary ↓
Ram filed this with NHTSA as an emissions communication dated Jun 24, 2025, received Jul 2, 2025, about the engine — 1 document under this number: 41C Combo. It names 4 model years (2024). An emissions communication is not a safety recall — there is no NHTSA campaign number and no federal requirement — but it is usually work the manufacturer pays for on the vehicles it names; the dealer checks the VIN against the manufacturer’s list.
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What the bulletin says
Source: NHTSA's summary of the manufacturer's communicationWhat it applies to, as NHTSA’s summary states it — build dates and equipment as the manufacturer filed them. The dealer checks the VIN and the build date on the door jamb; a vehicle outside the window is not covered by this bulletin.
Emissions Recall 41C - 6.4L Crankshaft Linear Compensation ECM Misfire Monitoring - Dealer Notification
Document filed under this number
| Document | Kind | Dated | NHTSA id | At NHTSA |
|---|---|---|---|---|
| 41C Combo | Emissions | Jun 24, 2025 | 11020101 |
What the document itself lists
Part the bulletin names
| Part number | Description | Qty |
|---|---|---|
| 04275086AE | Authorized Modification Label | — |
Read by machine from the document NHTSA serves (6 pages), read Sep 30, 2026. A part number is shown only where it matches Ram’s own catalogue shape, an operation only with its code and time, and a description only where the reader got it whole; anything it could not settle is left out, and the PDF is the record. Times are the manufacturer’s warranty allowances, not a quote.
The summary is NHTSA’s abstract of the document, as filed under 49 CFR 579.5. One communication is usually filed as several documents — the bulletin, a dealer notice, an owner letter — and the number on any of them finds this page. A PDF link is shown only once NHTSA’s own server has been seen to serve that document; the rest are checked over the following nights. Quote the number at a service desk; it is what the dealer’s system is keyed on.
Model years it names
Source: as the manufacturer filed themAlso filed against model years this site has no page for: 2024 Ram 4500; 2024 Ram 5500.
A vehicle page’s bulletin list shows the newest few communications filed against that model year; the count there is every one.
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What owners reported
Source: NHTSA complaint databaseOwners of the 2 model years this bulletin names have filed 104 complaints with NHTSA since 2015. 15 of them name Engine — the same broad component group this bulletin is filed under. NHTSA groups complaints coarsely, so that means the same area of the vehicle, not necessarily the same fault.
I got this 2024 vehicle brand new with 15 miles on it in August of 2025 . It is now January of 2026 by check engine light had came on 7 times since November of 2025. I had to shut down work because of this . It came on the 8th time today and I was told by the delearship that they didn’t know what to do .
2024 Ram 3500 · Engine · filed with NHTSA Jan 27, 2026 · ODI 11713787
The truck is currently exhibiting a loud metal tapping/ slapping/ ticking noise when driving from the engine. It is loud enough it can be heard over road/ wind noise, it can also be heard in high idle situations.
2024 Ram 2500 · Engine · filed with NHTSA Sep 21, 2025 · ODI 11688757
A complaint is one owner’s account, not a defect finding, and a bulletin is not a recall. Nothing here says this bulletin was issued because of these complaints, or that the repair it describes fixed them. Complaint files on this site begin in 2015.
More bulletins about the engine
Source: same model, same component group57 other manufacturer communications filed against these Ram models under the same component group (engine), newest first. The eight newest are listed; the rest are on the Ram list.
| Number | Kind | Dated | NHTSA’s summary |
|---|---|---|---|
| 09-025-26 | Service bulletin | Oct 13, 2026 | Starter Terminal Nut Under Torqued Customers may comment on one or more of the following: SYMPTOM: ● Starter clicking but not starting. ● No… |
| 07-006-26 | Service bulletin | Sep 1, 2026 | Engine Overheat Customers may comment on the following: SYMPTOM: ● Vehicle overheating. ● Temperature gauge is reading hot. ● Overheat symbo… |
| 114255 | Service bulletin | Aug 26, 2026 | RADIATOR - ENGINE COOLING |
| 114254 | Service bulletin | Aug 26, 2026 | RADIATOR - ENGINE COOLING |
| 9100882 | Service bulletin | Aug 17, 2026 | PULLEY Fan If replacing 68209745AA, also replace 68723388AA, 05086958AB, and 68000833AD. Retain bolts, mark each with its original location… |
| 18-038-26 REV. A | Service bulletin | Jul 29, 2026 | Flash: Powertrain Control Module (PCM) Updates Customers must experience a Malfunction Indicator Lamp (MIL) illumination and the vehicle exh… |
| 113754 | Service bulletin | Jul 29, 2026 | SENSOR - EXHAUST TEMPERATURE |
| 113293 | Service bulletin | Jul 8, 2026 | INJECTOR - FUEL |
Quote the number at the service desk. It is what the dealer’s system is keyed on.
Every manufacturer communication NHTSA holds for Ram, by the number printed on the letter.
Common questions
Source: NHTSA, 49 CFR 579.5Is Ram 41C a recall?
No. A emissions communication is a manufacturer communication filed with NHTSA under 49 CFR 579.5; a safety recall carries an NHTSA campaign number (two digits, a letter, six digits) and a federal duty to repair for free. Check the vehicle’s recalls by VIN at nhtsa.gov/recalls, or on its page here.
Is the 41C repair free?
A emissions communication is usually paid by the manufacturer on the vehicles it names, within the terms and time limit the document sets; the dealer checks the VIN against the manufacturer’s list.
Which vehicles does 41C cover?
The manufacturer filed it against 4 model years: 2024 Ram 2500, 2024 Ram 3500, 2024 Ram 4500, 2024 Ram 5500. Whether one particular vehicle is affected is a matter of its VIN and its build, not its model year alone.