Part record

Cam Phaser, 3V (Ford 3R2Z-6A257-DA)

The variable-cam-timing phaser for the 5.4L 3V; the current Ford PN 3R2Z-6A257-DA supersedes 3R2Z-6A257-AA and the 3L3Z-6256-DA/EA/FA family. The failing part behind the famous 5.4 3V cold-start rattle (loose phaser internals rattle like a diesel until oil pressure builds). Replace in pairs, and budget the front-of-engine work: phaser replacement is done with the timing chain front end open (part-sd-timing-chain-kit-3v). The 6.8L 3V V10 is non-VCT per the powertrain tables; the catalog supersession chain pulls the 3L3Z-6256-* V10 sprockets into this PN but the provider's application rows list only 4.6L/5.4L vehicles - confirm the V10 phaser application by VIN before ordering. Pass-2: the catalog rows list the phaser for F-150 5.4 3V 2004-2008 and Expedition/Navigator - the F-150 3V is the original application of the updated phaser.