NHTSA ID Number: 10183567
Manufacturer Communication Number: SSM 49318
Summary
For 2011-2020 F-150/Mustang
vehicles equipped with a 5.0L engine when installing a replacement secondary timing chain tensioner (6K254) or secondary timing chain guide (6K297), it is necessary to replace both components as a pair, using the latest level parts. Make sure to use secondary timing chain tensioner part number ML3Z-6K254-A and secondary timing chain guide part number ML3Z-6K297-A.
20 Affected Products
Vehicles
APPLICABLE VEHICLES
2011 – 2014 TRUCK: F6 F150/LINCOLN MARK LT
2018 – 2020 TRUCK: FC P552N F-150
2015 – 2017 TRUCK: FC P552N F-150
2012 – 2013 CAR: ZF S197N MUSTANG
2011 – 2014 CAR: ZF S197N MUSTANG
2019 – 2020 CAR: ZG S550N MUSTANG
2015 – 2020 CAR: ZG S550N MUSTANG
1 Associated Document
Manufacturer Communications
SSM 49318 – 2011-2020 F-150/Mustang – 5.0L – Updated Secondary Chain Tensioner Service Part Compatibility
- Formulated for engines with 75,000 miles or more, Valvoline MaxLife High Mileage synthetic blend is formulated with seal conditioners to help prevent oil leaks and reduce oil consumption
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- 6X better wear protection on critical engine parts than industry standards**
- 1.3X better sludge protection than industry standards*
- 3X Stronger against viscosity breakdown than leading full synthetic^
- Protection for 10,000 miles between oil changes
- As measured in Sequence VH sludge test vs. API SP limits
- Designed for vehicles with 75,000 miles or more, Valvoline MaxLife Full Synthetic High Mileage Motor Oil helps maximize engine life and performance for the many miles still ahead
- Formulated with seal conditioners to help prevent oil leaks, reduce oil consumption, and improve fuel economy
- Delivers 50% stronger wear protection than industry standards for superior defense against friction and wear
- Provides 20% stronger sludge defense than industry standards to protect against harmful buildup and deposits
- Offers 2.5X better heat protection than industry standards to safeguard engines in extreme conditions
- Advanced protection against the four main causes of engine breakdown: wear friction heat and deposits
- Delivers 40% stronger wear protection than industry standards to reduce friction and improve fuel economy
- Provides 15% better deposit defense vs. industry standards, keeping engines cleaner for smoother performance and longer-lasting protection
- Up to 2.5X better heat protection vs. industry standards to fight harmful sludge formation and thermal breakdown
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Last update on 2026-05-31 / Affiliate links / Images from Amazon Product Advertising API
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