This is the clearest avoid in the audit, and it is not close. The 6.2L L87 sits under recall 25V-274 for connecting rod and crankshaft manufacturing defects that can seize the engine with no warning. GM's own investigation logged 28,102 field complaints, of which more than 14,000 involved loss of propulsion.
The part that should end the conversation for a BIFL buyer: the fix may not be a fix. NHTSA opened Recall Query RQ26001 to investigate the remedy itself after 36 engines catastrophically failed after receiving the prescribed dealer service. For passing engines, the remedy is a higher-viscosity oil, a new filter, and an updated oil cap. A sticker is not a structural repair for a crankshaft defect.
The 5.3L L84 is the lesser trap. Better engine, but AFM/DFM cylinder deactivation carries lifter risk concentrated in the Sept 2020 to Mar 2021 build window, where failures now show up in four-digit mileage rather than the old 50 to 100k range. Refresh-model ECMs are also locked tight, killing the traditional DOD-delete escape hatch.
The cam phaser era. Ford issued the 21B10 Service Action reprogramming the PCM, then a separate 21N03 program replacing phasers on trucks that still rattled. Out of warranty, this is a real bill.
Layer on the rough early 2017 to 18 10-speed (improved from 2019 with software and hardware revisions) and the trim traps: 22-inch wheels that find every frost heave, plus the heaviest electronics load in the lineup.
The V35A 3.4L twin-turbo is under an expanding recall: machining debris that can cause knocking, rough running, no-start, or loss of motive power. The GX exposure is comparatively small.
The maintenance-trap tell is the camera-and-screen architecture: a separate 2022 to 26 Panoramic View Monitor recall fixes a rearview camera that can freeze in reverse. Software now, but every one of those modules is a future out-of-warranty line item.
The most BIFL-aligned powertrain in the group, on pure mechanical philosophy. Naturally aspirated means fewer failure vectors: no turbos, no intercooler condensation, no boost heat cycling. The 3.5 EcoBoost simply has more moving parts and more chances for a bad one. The Coyote's one known vice is oil consumption, a monitor-and-top-off item, not a catastrophic one.
Parts ecosystem: one of the highest-volume V8s in North America, shared with the Mustang. Aftermarket depth, salvage availability, and independent-shop familiarity no luxury platform can match. Factory volume, not proprietary backorders.
If it must be a Yukon, the diesel is the engineer's answer and it dodges the L87 catastrophe entirely. Recall docs are explicit: the 5.3L, 2.7L, and both 3.0L Duramax variants are unaffected.
Honest caveat: it is a newer, more complex diesel with a belt-in-oil design and emissions hardware. It trades the V8's catastrophic-failure risk for diesel maintenance discipline.
The body-on-frame exception to luxury equals fragile. A real ladder frame under the leather, sharing the Land Cruiser platform. Master-mechanic teardowns were complimentary on the GX specifically: design and materials.
Buy a post-April-2024 build to clear the bearing window. You are buying frame and drivetrain longevity, not home-garage serviceability.
Pairs a naturally aspirated, salvage-everywhere engine with the only owner-accessible diagnostic ecosystem in the group. The multi-decade pick if the form factor is open.
Land Cruiser bones, cleared bearing window. Accept the closed, dealer-tethered diagnostics as the cost of the longest frame-and-drivetrain duty cycle.
The only defensible BIFL configuration. The diesel sidesteps the recall entirely. Do not buy the 6.2.