2.7L V6 EcoBoost Engine Complete Assembly (Less Turbos) for 2021-2023 Ford

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

• Confirm that the 8th digit of the vehicle's VIN is 'P'.
• Confirm the vehicle is a 4x4 Bronco and that front axle/transfer case mounting points match.
• Locate the barcode label on the original engine (timing cover or valve cover) and verify the part number prefix (e.g., MB3E or PB2E).
• Check the full VIN on the NHTSA website or with a dealer for open recall 24V-635 / 24S55.

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

Special tools this job needs:

• Fuel Injector Puller (OTC 6999 or Ford 310-206)
• Camshaft Alignment/Timing Tool Kit (OTC 6680 / 303-1248)
• Quick-Disconnect Tools
• Front crank seal installer
• Harmonic balancer installer
• Engine hoist and stand
• External Torx (E-Torx) sockets

Budget for these consumables at install:

• Engine Oil (6.0 quarts of SAE 5W-30 Synthetic Blend meeting Ford specification WSS-M2C961-A1 or WSS-M2C946-B1)
• Oil Filter (Motorcraft FL-2062-A or cartridge equivalent)
• Engine Coolant (Approximately 12.4 quarts of Motorcraft Yellow Prediluted Antifreeze/Coolant meeting Ford specification WSS-M97B57-A2)
• Spark Plugs (Motorcraft SP-594 or equivalent, pre-gapped to 0.028-0.032 inches)
• Intake manifold gaskets (upper and lower)
• Turbocharger mounting gaskets, oil feed/drain gaskets, and coolant line O-rings
• High-pressure fuel pump O-ring and high-pressure fuel crossover tubes (one-time-use)
• Front and rear crankshaft seals
• Crankshaft pulley bolt / harmonic balancer bolt (FT4Z-6A340-A, torque-to-yield)
• Yellow plastic quarter-turn oil drain plug

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

What’s involved: Crankshaft Position (CKP) Sensor Relearn, Fuel Injector Flow Coding (IQA), and PCM/BCM Security Synchronization

Requires a dealer-level scan tool (such as Ford's FDRS or FORScan with compatible OBD2 adapter) to perform Crankshaft Position Sensor Relearn (Neutral Profile Correction) to prevent P0315 codes, Fuel Injector Flow Coding if using replacement injectors, and a PCM replacement procedure to marry the PCM to the BCM/PATS immobilizer system to prevent a no-start condition.

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

• The 'Wet' Oil Pump Belt: Runs directly inside the engine oil and is highly susceptible to degradation if incorrect oil spec is used or oil changes are neglected.
• One-Time-Use High-Pressure Fuel Lines: Metal lines are torque-to-yield and must be replaced once loosened to prevent severe fire hazards.
• Plastic Oil Pan Fragility: Easily cracked or warped. Must use a brand-new pan if removed and follow Ford's exact multi-stage torque sequence.
• Turbo Oil Feed Line Filters: Must clean or replace small inline filters/screens in the turbo oil feed lines to prevent starving and destroying the turbochargers.
• Turbocharger Transfer: Since turbos are not included, you must transfer your old ones and replace all associated lines, gaskets, and O-rings, and prime the oil system before first start.
• Mandatory ECU/PCM Programming: The vehicle will not start due to the PATS immobilizer until programmed using Ford's FDRS tool.
• Accessory Mounting: Ensure all brackets and accessories from the original Bronco engine are used, as alternator mounting differs from other models like the F-150.

Easy to get right once you know them:

• Reusing Torque-to-Yield (TTY) Fasteners: Reusing the crankshaft pulley bolt, flywheel/flexplate bolts, or high-pressure fuel lines leads to failures or leaks.
• Using the Wrong Oil Specification: Using oil that does not meet Ford's exact specification can cause the wet oil pump belt to break down, leading to total engine destruction.
• Failing to Perform the Crank Relearn: Leads to rough idle or persistent check engine lights (P0315/P0300).
• Not Replacing the Turbo Oil Feed Lines: Reusing old, carbon-clogged lines leads to immediate turbocharger failure.
• Not Investigating the Valve Recall: Buyers should check if their vehicle is covered under NHTSA recall 24V-635 before buying, as Ford may replace the engine for free.
• Not Realizing Turbos are Missing: Purchasing without understanding that 'LESS TURBOS' means they must provide and transfer their own turbochargers.
• Failing to Program the ECU: Assuming the engine is plug-and-play and failing to plan for programming, resulting in a no-start condition.

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: