23B25 – Engine Valve Covers Replacement – 2022 Ford Mustang GT 500 & 2023 F-150 Raptor R

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NHTSA ID Number: 10243416

Manufacturer Communication Number: 23B25


Certain 2022 Model Year Mustang GT 500 and 2023 F-150 Raptor R Vehicles – Engine Valve Covers Replacement


September 20, 2023

Customer Satisfaction Program 23B25
Certain 2022 Model Year Mustang GT 500 and 2023 F-150 Raptor R Vehicles
Engine Valve Covers Replacement 



This program will be in effect through September 30, 2024. There is no mileage limit for this program.



Vehicle Model Year Assembly Plant Build Dates
Mustang GT 500 2022 Flat Rock Assembly October 21, 2021, through November 9, 2022
F-150 Raptor R 2023 Dearborn April 29, 2022, through March 9, 2023

US population of affected vehicles: 4,240. Affected vehicles are identified in OASIS and FSA VIN Lists.

Note: Some vehicles may be in the process of being repaired at the plant. Monitor OASIS before opening an RO and/or beginning a repair. Parts purchased for an FSA can be returned for credit if required. See the EXCESS STOCK RETURN details in Labor Allowances and Parts Ordering Information for more information.

NOTE: The following Special Service Message (SSM) includes the same component replacements as contained in this FSA:

  • SSM 51811

Therefore, 23B25 will be closed automatically when repairs for the SSM are performed.



Some of the affected vehicles may exhibit an engine valve cover oil leak around the spark plug wells caused by excessive movement of the spark plug seals.



Dealers are to replace the engine valve covers. This repair must be performed on all affected vehicles at no charge to the vehicle owner.



Owner letters are expected to be mailed the week of October 2, 2023. Dealers should repair any affected vehicles that arrive at their dealerships, whether or not the customer has received a letter.



– Not a Mobile Service Repair



  • Owners of affected vehicles will be directed to dealers for repairs.
  • Immediately contact any of your affected customers whose vehicles are not on your VIN list but are identified in OASIS. Give the customer a copy of the Owner Notification Letter (when available) and schedule a service date.
  • Correct other affected vehicles identified in OASIS that are brought to your dealership.
  • Dealers are to prioritize repairs of customer vehicles over repairs of new and used vehicle inventory.



  • Correct all affected units in your new vehicle inventory before delivery.
  • Use OASIS to identify any affected vehicles in your used vehicle inventory.



Affected branded/salvaged title vehicles are eligible for this service action.



Refunds are not approved for this program.



Rental vehicles should not be required for this program.  If you have a unique owner circumstance or multiple programs, a rental vehicle may be approved.  Please contact the SSSC via the SSSC Web Contact Site.


PICK-UP AND DELIVERY- Participating Dealers

Dealers participating in the Remote Experience Program:

  • Refer to EFC12071, 2023 Remote Experience Program, Pickup & Delivery (PDL) Offset section for additional details.


PICK-UP AND DELIVERY- Non-participating Dealers

Dealers not participating in the 2023 Remote Experience Program for Pick-up & Delivery are authorized to claim unique services for completing this program.

  • Dealers are authorized to claim one-half labor hour per repair for vehicle pick-up & delivery services. Refer to Labor Allowances for details.
  • Dealers must retain a Vehicle Pick-up & Delivery Record with the repair order documentation.



Part Number  Description Order Quantity
KR3Z-6582-G Valve Cover – RH 1
KR3Z-6582-E Valve Cover – LH 1
NR7Z-6758-A PCV HoseF-150 Raptor R only 1




NOTICE: During engine repair procedures, cleanliness is extremely important. Any foreign material, including any material created while cleaning gasket surfaces, that enters the oil passages, coolant passages or the oil pan, can cause engine failure.

1. Remove and replace the Valve Cover Left Hand (LH) and the Valve Cover Right Hand (RH). Follow Workshop Manual (WSM) Procedure’s in Section 303-01F (Raptor R) or 303-01C (Mustang GT 500).

IMPORTANT NOTE: Federal law prohibits selling motor vehicle parts or components that are under safety, compliance, or emissions recall. Unless a part is requested to be returned to Ford, all parts replaced under this FSA must be scrapped in accordance with all applicable local, state and federal environmental protection and hazardous material regulations. Refer to the Parts Retention, Return, & Scrapping section of the FSA dealer bulletin for further information.


2 Affected Products


FORD F-150 2023


1 Associated Document

Manufacturer Communications

September 20, 2023
Customer Satisfaction Program 23B25


MC-10243416-0001.pdf 423.033KB

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Last update on 2024-07-09 / Affiliate links / Images from Amazon Product Advertising API

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