Genuine OEM FU5T-14B192-AA 12V 5-Pin Micro Relay, Replaces FU5Z-14N089-A, Compatible with 2015–2023 Ford Mustang, 2018–2022 Ford EcoSport, 25/30A 5-Blade Accessory Relay

FU5T-14B192-AA 12V 5-Pin Micro Relay — direct-fit 5-blade micro replacement for the OE reference printed on many vehicles’ fuse/relay boxes. Serviced under FU5Z-14N089-A; supports 25/30A accessory/control circuits when used in the specified cavity.Specification: 12V micro relay; 5 blades (5-pin); supports 25/30A circuits; matches the micro-ISO footprint used in the engine-bay power distribution box.OE References: FU5T-14B192-AA (engineering); FU5Z-14N089-A (service). Common case markings include “4RC 933 364-05” and “V6-1C-12V”.Function: Restores switching for the accessory/control circuit assigned to this cavity (refer to your owner’s manual or fuse-box legend for exact circuit in your vehicle).Install Tips: Disconnect battery, pull the old micro relay straight up, seat this unit fully in the same cavity/orientation, reconnect battery, verify operation.Compatibility (Verified): Compatible with Ford Mustang (2015, 2016, 2017, 2018, 2019, 2020, 2021, 2022, 2023) and Ford EcoSport (2018, 2019, 2020, 2021, 2022).Complementary Items (not included): Depending on the vehicle, companion relays such as GU5Z-14N089-B or GU5Z-14N089-D may occupy nearby cavities. Inspect/replace together if heat or corrosion is present.Fitment Guidance: Always match the blade count/footprint and the designated relay position; confirm by VIN or fuse-box legend for your exact trim/options.

• Specs & OE references: 12V micro relay, 5 blades (5-pin), supports 25/30A circuits; OE reference FU5T-14B192-AA (service part FU5Z-14N089-A). Common case markings you may see on the original part include “4RC 933 364-05” and “V6-1C-12V.” Verify blade layout matches your removed relay before install. Sources confirm 5-blade form factor and FU5T→FU5Z supersession.
• Install location & how it’s used: Typically plugs into the engine-bay fuse/relay box (power distribution box); used for accessory power/control circuits. To replace: disconnect battery, pull the old 5-blade micro relay straight up, seat this relay fully into the same cavity, reconnect battery, and confirm the circuit operates. Always match cavity and orientation to your owner’s manual/fuse-box legend for your exact vehicle trim.
• Compatibility — Mustang (year-by-year): Compatible with Ford Mustang (2015, 2016, 2017, 2018, 2019, 2020, 2021, 2022, 2023). Use as an accessory power/control relay in the designated fuse/relay cavity per the vehicle legend. Verified fitment for Mustang model years 2015-2023.
• Compatibility — EcoSport (year-by-year): Compatible with Ford EcoSport (2018, 2019, 2020, 2021, 2022) including 1.0L and 2.0L variants; used as a 5-blade accessory power/control relay in the specified fuse/relay cavity. Verified fitment for EcoSport model years 2018-2022.
• Supersession & interchange clarity: Engineering number FU5T-14B192-AA is serviced by FU5Z-14N089-A (same 5-blade micro footprint). Dealer catalogs list FU5Z-14N089-A with supersession from FU5T-14B192-AA and show 25/30A usage. If your removed relay shows FU5T-14B192-AA, this replacement is designed for that application—always confirm by VIN or fuse-box legend.
• Complementary parts for full fix (not included): Many compatible vehicles also use companion relays in the same box (e.g., GU5Z-14N089-B or GU5Z-14N089-D) for other circuits. If heat/corrosion damaged multiple positions, replacing those companions at the same service time can restore overall reliability. Check your fuse-box legend to identify which cavities use these references.
• When this relay solves the problem: If the original 5-blade micro relay has worn contacts/coil failure, symptoms can include an inoperative or intermittent accessory power circuit controlled by that cavity (no response/occasional clicking). Replacing like-for-like in the correct cavity restores switching to the affected circuit when the relay is the root cause. Always diagnose wiring/fuses first.