Ford bulletin 23B62 S1
What it saysCertain 2023 Model Year F-150, Expedition, and Navigator with 3.5L Engine - Engine Long Block Replacement Owner letters submitted 01/02/24 NHTSA’s full summary ↓
Ford filed this with NHTSA as a service bulletin dated Jan 24, 2024, received Feb 1, 2024, about the engine. It names 3 model years across Ford and Lincoln (2023). A service bulletin is not a safety recall: it is the manufacturer telling its dealers how to diagnose or repair a condition, and whether the work is paid for depends on the warranty in force. Quoting the number at a service desk can save a diagnosis.
One page for every brand it was filed under. Each brand’s bulletins: Ford · Lincoln.
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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.
Certain 2023 Model Year F-150, Expedition, and Navigator with 3.5L Engine - Engine Long Block Replacement Owner letters submitted 01/02/24
Document filed under this number
| Document | Kind | Dated | NHTSA id | At NHTSA |
|---|---|---|---|---|
| 23B62 S1 | Service bulletin | Jan 24, 2024 | 10249491 | PDF, 396 KB |
What the document itself lists
Parts the bulletin names — the first 40 it lists
| Part number | Description | Qty | Find it |
|---|---|---|---|
| NL3Z-6006-A | Long block assembly | 1 | eBay Motors → |
| DL3Z-19B596-B | A/C compressor inlet O-ring seal and gasket | 1 | eBay Motors → |
| DS7Z-19B596-A | A/C compressor outlet/inlet line coupling O-ring seal and gasket | 1 | eBay Motors → |
| W520514-S440 | Catalytic converter flange nuts | 4 | eBay Motors → |
| HL3Z-6N652-A | Coolant Tube Two Piece Gasket | 2 | eBay Motors → |
| ML3Z-9229-A | DI Injector O-ring Kit | 1 | eBay Motors → |
| ML3Z-8527-A | EGR outlet tube O-ring | 1 | eBay Motors → |
| ML3Z-9F485-A | EGR to exhaust manifold connector | 1 | eBay Motors → |
| W713244-S439 | Engine mount bolts LH | 3 | eBay Motors → |
| W716530-S440 | Engine mount nuts RH | 2 | eBay Motors → |
| W701706-S900 | Exhaust manifold nuts | 16 | eBay Motors → |
| HL3Z-9J323-B | Fuel rail-to-fuel rail high-pressure fuel tube | 1 | eBay Motors → |
| HL3Z-9H486-A | intake manifold gaskets | 6 | eBay Motors → |
| ML3Z-9448-B | Manifold Gasket LH | 1 | eBay Motors → |
| ML3Z-9448-A | Manifold Gasket RH | 1 | eBay Motors → |
| ML3Z-6758-E | PCV tube | 1 | eBay Motors → |
| FOPZ-9229-A | PFI injector Seal Kit (10 per kit) | 1 | eBay Motors → |
| W720722-S900 | TC bolts (both sides) | 6 | eBay Motors → |
| FT4Z-6N652-H | TC coolant supply and return tube O-ring seal | 4 | eBay Motors → |
| ML3Z-6L625-A | — | 1 | |
| ML3Z-9450-A | TC gasket | 2 | eBay Motors → |
| ML3Z-9T515-B | TC oil return tube LH | 1 | eBay Motors → |
| ML3Z-9T515-A | TC oil return tube RH | 1 | eBay Motors → |
| ML3Z-9T516-A | TC oil supply tube LH | 1 | eBay Motors → |
| ML3Z-9G440-A | TC oil supply tube RH | 1 | eBay Motors → |
| HL3Z-8507-D | Thermostat housing Gasket | 1 | eBay Motors → |
| HL3Z-8527-B | Thermostat housing O-ring seal | 1 | eBay Motors → |
| ML3Z-8507-C | Water pump gasket | 1 | eBay Motors → |
| BR3Z-8527-A | Water pump O-ring seal | 1 | eBay Motors → |
| HL3Z-8590-A | Water pump outlet connector O-ring seal | 1 | eBay Motors → |
| XO-5W30-Q1SP | Engine oil | 6 | eBay Motors → |
| W714735-S439 | Engine mount bracket bolts LH and RH | 10 | eBay Motors → |
| W715211-S439 | Engine mount through bolt LH and RH | 2 | eBay Motors → |
| W702600-S439 | Steering column shaft bolt | 1 | eBay Motors → |
| W720232-S900 | Body mount bolts (Super Cab/Crew only) | 2 | eBay Motors → |
| ML3Z-8620-C | Water pump belt (PowerBoost engine only) | 1 | eBay Motors → |
| ML3Z-8620-A | A/C compressor belt (EcoBoost engine only) | 1 | eBay Motors → |
| W715618-S437 | Torque converter nuts (EcoBoost engine only) | 1 | eBay Motors → |
| W714735-S900 | Engine mount bracket bolts LH and RH | 10 | eBay Motors → |
| W715106-S439 | Engine mount through bolt LH and RH | 2 | eBay Motors → |
Read by machine from the document NHTSA serves (13 pages), read Sep 30, 2026. A part number is shown only where it matches Ford’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. Listings and prices on eBay Motors are the seller’s.
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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 themFord 2 model years
Lincoln 1 model year
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 3 model years this bulletin names have filed 585 complaints with NHTSA since 2015. 8 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 purchased the truck 2 weeks ago brand new and it has a total of 570 miles on it. After not being used for one day, the truck would not start at all. I receive a warning indicating that I should stop safely now, that full power accessory mode is on and a check engine light. I connected a OBD scanner but no codes were generated.
2023 Ford F-150 · Engine · filed with NHTSA Oct 26, 2023 · ODI 11551947
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 group66 other manufacturer communications filed against these Ford models under the same component group (engine), newest first. The eight newest are listed; the rest are on the Ford list.
| Number | Kind | Dated | NHTSA’s summary |
|---|---|---|---|
| SSM 55228 | Service bulletin | Oct 8, 2026 | Some 2020-2026 Aviator/Explorer/F-150/Bronco/Ranger vehicles equipped with a 2.7L or 3.0L (non-diesel) engine may need the front engine cove… |
| 25L05 | Other | Sep 2, 2026 | Certain 2024-2025 Model Year F-150 Vehicles Equipped with 2.7L Engine Vehicle Emission Control Information (VECI) Label Update |
| 25M01 | Other | Jul 28, 2026 | Customer Satisfaction Program 25M01 Certain 2021 Model Year F-150 3.0L Diesel Engine and 2020-2022 Model Year Super Duty with 6.7L Diesel En… |
| SSM 54969 | Service bulletin | Jun 26, 2026 | Some 2025-2026 Navigator vehicles may have diagnostic trouble code (DTC) B14E4:55 stored in the body control module (BCM). The rear turn sig… |
| TSB 26-2233 | Service bulletin | May 14, 2026 | This article supersedes TSB 26-2116 to clarify the prior approval statement. Some of the vehicles listed in the model statement above may ex… |
| SSM 54795 | Service bulletin | May 4, 2026 | Some 2021-2023 F-150 vehicles equipped with a 3.5L PowerBoost engine and 2020-2026 Explorer vehicles equipped with a 3.3L hybrid engine may… |
| TSB 26-2171 | Service bulletin | Apr 17, 2026 | This article updates TSB 25-2154. Reasons for update: *Parts List *Service Procedure to replace the output planetary carrier assembly *Added… |
| TSB 26-2116 | Service bulletin | Apr 9, 2026 | This article supersedes TSB 25-2323 to update the Service procedure, Parts list, and add a clarification note about Cost Cap and Prior appro… |
Quote the number at the service desk. It is what the dealer’s system is keyed on.
Every manufacturer communication NHTSA holds for Ford and Lincoln, by the number printed on the letter.
Common questions
Source: NHTSA, 49 CFR 579.5Is Ford 23B62 S1 a recall?
No. A service bulletin 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 23B62 S1 repair free?
Not automatically. A service bulletin describes how to diagnose or repair a condition; who pays depends on the warranty in force, any extension, and the dealer. Quoting the number can save a diagnosis either way.
Which vehicles does 23B62 S1 cover?
The manufacturer filed it against 3 model years across 2 brands (Ford and Lincoln): 2023 Ford Expedition, 2023 Ford F-150, 2023 Lincoln Navigator. Whether one particular vehicle is affected is a matter of its VIN and its build, not its model year alone.