3.3L Non-Hybrid Engine Complete Assembly for 2020-2024 Ford Explorer, Police Interceptor Utility

A quick look at your own vehicle makes sure the right engine shows up:

• Verify the 8th digit of the VIN is 'B'.
• Confirm drivetrain configuration (RWD vs AWD) to prepare for oil pan transfer if necessary.
• Confirm if the vehicle is a standard gasoline model or a Hybrid (VIN W).
• Inspect the front of the engine bay to confirm it has an external, belt-driven water pump.

What the install really takes — plan and budget with confidence:

Special tools this job needs:

• High-pressure fuel line disconnect tools
• Torque angle gauge
• Ford-compatible diagnostic scan tool (FDRS, IDS, or FORScan with extended license)

Budget for these consumables at install:

• 6.0 quarts of SAE 5W-20 synthetic blend or full synthetic oil
• New premium oil filter (e.g., Motorcraft FL-500S)
• Motorcraft Yellow Prediluted Antifreeze/Coolant (meeting Ford specification WSS-M97B57-A1 or WSS-M97B44-D2)
• Six new OE-spec spark plugs (pre-gapped to 0.049-0.053 inches)
• Upper and lower intake manifold gaskets
• Exhaust manifold gaskets
• Water pump gasket and O-rings (if transferring external pump)
• Torque-to-Yield (TTY) crankshaft pulley bolt and flexplate-to-crankshaft bolts
• New high-pressure fuel lines and direct injector Teflon seals

What your vehicle’s computers will need after the swap:

What’s involved: Crankshaft Position (CKP) Sensor Relearn, PCM VIN programming, and PATS security re-marriage

If reusing the original ECU, a Crankshaft Position (CKP) Sensor Relearn is required. If replacing the ECU, full VIN write, PATS key re-marriage, and module configuration are required. Transmission adaptive learning strategy must also be reset.

Pro tips for a smooth first start-up — hand them to whoever does the install:

• Internal Water Pump Delete Idler Gear: The engine uses an external water pump but retains an internal idler sprocket with seals blocking old coolant passages. If these seals fail, coolant leaks into the engine oil. Inspect these seals if the timing cover is removed.
• High-Pressure Fuel System Safety: The PFDI system operates up to 2,900+ psi. Reusing the torque-to-yield high-pressure fuel lines or direct injector seals is a major fire hazard; they must be replaced.
• AWD Front Differential Clearance: On AWD models, the front axle shafts and differential mount directly adjacent to the oil pan, requiring careful alignment during engine drop-in.
• Tight Manifold Bolt: One lower intake manifold bolt is too long to be fully removed while the engine is in the vehicle; the manifold must be lifted out with the bolt captured in its bore.

Easy to get right once you know them:

• Drivetrain Mismatch: Buying a RWD engine and failing to swap the oil pan, pickup tube, and front differential brackets for an AWD vehicle.
• Hybrid Mismatch: Attempting to swap a standard gasoline 3.3L (VIN B) into a Hybrid (VIN W) model, or vice versa, which have completely different block castings and electrical integrations.
• Reusing Torque-to-Yield (TTY) Bolts: Reusing the crankshaft balancer bolt, flexplate bolts, or high-pressure fuel lines, which can lead to catastrophic failure or fuel leaks.
• Ignoring PCM Programming: Expecting the engine to run without performing the required PCM/PATS security programming and CKP sensor relearn.

Not issues with the units on this page — the manufacturer documented these for every engine of this family, wherever you buy one. Handy for your installer: