Details

• Brand:

  

  

• SKU:

  ML3Z-9T515-B

• Positions: Left
• Other Names:

  Oil Line, Tube Assembly

• Description:

  This is the genuine Ford ML3Z-9T515-B coolant tube assembly routing engine coolant for the 21-25 F-150 equipped with the 3.5L EcoBoost twin-turbo V6 (including the high-output Raptor variant). The tube serves the driver side of the cooling circuit and works in tandem with sibling ML3Z-9T515-A and the passenger side ML3Z-9T516-A and ML3Z-9T516-B coolant tubes. Per the Ford parts catalog parts diagram, these tubes share the same family with related components including ML3Z-6K682-A turbocharger assembly, ML3Z-9G488-EA wastegate mounting assembly, ML3Z-6N652-A and ML3Z-6N652-G turbo manifold gaskets, and various retaining bolts (W716088-S900, W715565-S450, W716088-S450). The tube carries coolant between the engine block water jacket and the turbocharger center housing water jacket, which dissipates the high heat soak of the variable-geometry turbocharger center section after engine shutdown. Inadequate coolant flow through this circuit will lead to bearing damage, oil coking, and accelerated turbocharger failure. The tube routes through tight under-hood real estate behind the engine and is typically replaced any time the turbocharger or exhaust manifold is removed, since the routing path requires significant teardown to access. The genuine Ford tube features the correct bend geometry, end fittings, and material spec to handle the operating temperatures and pressures of the 3.5L EcoBoost cooling system. Coolant fittings should be inspected for corrosion or scaling, and new O-rings or seals should be used at every disturbance per the workshop manual.

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