3.3L Hybrid Engine Complete Assembly for 2020-2023 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 'W'.
• Confirm the vehicle is a 6th-generation (2020-2023) longitudinal hybrid model.
• Confirm if the vehicle is AWD or RWD, as oil pans and related components may differ.

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

Special tools this job needs:

• High-voltage insulated safety gloves (Class 0, rated for 1,000V AC / 1,500V DC)
• CAT III (1000V) or CAT IV (600V) digital multimeter
• Vacuum coolant refilling tool (e.g., UView Airlift)
• Ford-compatible scan tool with FDRS/IDS subscription
• Engine hoist
• Torque-angle gauge

Budget for these consumables at install:

• Engine Oil: SAE 0W-20 or 5W-30 Synthetic Blend/Full Synthetic (meeting Ford spec WSS-M2C961-A1 or equivalent)
• Oil Filter (e.g., Motorcraft FL-910S)
• Coolant: Motorcraft Yellow Prediluted Antifreeze/Coolant (Ford spec WSS-M97B57-A2)
• Spark Plugs: Six new Motorcraft SP-582 double-iridium spark plugs
• Gaskets: Upper and lower intake manifold gaskets, exhaust manifold gaskets, water outlet gaskets
• Seals: Rear main seal (highly recommended)
• Accessory Drive Belt
• New Torque-to-Yield (TTY) cylinder head and critical fasteners (if disturbed)
• New metal high-pressure fuel lines (single-use)

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

What’s involved: PCM Software Update, Crankshaft Position (CKP) Sensor Relearn, Transmission Adaptive Strategy Reset, and PATS Security/VIN Programming

Requires a Ford-specific diagnostic tool (IDS or FDRS) to perform PATS security re-marriage, VIN programming, CKP relearn, and transmission adaptive strategy reset. The vehicle will not start if security re-marriage is skipped.

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

• High-Voltage Safety: Must remove the High-Voltage Service Disconnect plug under the second-row passenger seats and wait at least 10 minutes before touching orange cables. Verify 0V with a rated multimeter.
• Dual Cooling Loops: Both the engine cooling loop and the low-temperature inverter cooling loop must be vacuum-filled to prevent air pockets and subsequent hybrid system overheating.
• External Water Pump Dummy Gear: The 3.3L uses an external belt-driven water pump, but contains a free-spinning dummy gear inside the timing cover where the internal pump sat on older transverse models. Do not mistake this for a functional timing component.
• PFDI Fuel System: High-pressure fuel lines connecting the HPFP to the direct-injection rail are torque-to-yield and must be replaced to prevent high-pressure fuel leaks.
• Transmission Support: The transmission must be properly supported with a jack during engine removal to prevent damage to the bell housing, mounts, or torque converter.

Easy to get right once you know them:

• Ordering for a non-hybrid Explorer or a Ford F-150 due to sharing the 3.3L Cyclone family name.
• Reusing the single-use metal high-pressure fuel lines, leading to fuel leaks.
• Skipping the vacuum coolant bleed on the hybrid inverter loop, causing immediate fault codes.
• Not verifying the 8th VIN digit is 'W' before purchasing.
• Assuming the engine is plug-and-play and ignoring the mandatory PCM/PATS security reprogramming.
• Reusing torque-to-yield (TTY) bolts if swapping cylinder heads or other critical components.
• Using incorrect fluids, such as non-specified coolant or transmission fluid.

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: