Specs + OE Cross-Refs 12V DC 20A 4-terminal micro relay for automotive power distribution; square micro ISO footprint. Direct replacement for OE service numbers 5L3Z-14N089-AA and 8T2Z-14N089-C superseded by HU5Z-14N089-B; engineering marking commonly seen as 8T2T-0101K-CA on the relay case. Verify your socket footprint and terminal layout before ordering. Package includes 1 × relay.
Location, Function, Symptoms Typically located in the engine compartment fuse/relay box (some applications use a passenger compartment fuse panel). Used as Accessory Power and Hazard/Turn Signal Flasher relay on many vehicles. Replacing a weak relay helps restore functions like accessory power feed and hazard/turn indicators; common failure clues include intermittent accessories, fast-flash/ no-flash turn signals, or heat-soaked no-ops at the fuse box.
F-150 Fitment (year-by-year) Compatible with 2004 Ford F-150 Engine Compartment Fuse Box Relay; 2005 Ford F-150 Engine Compartment Fuse Box Relay; 2006 Ford F-150 Engine Compartment Fuse Box Relay; 2007 Ford F-150 Engine Compartment Fuse Box Relay; 2008 Ford F-150 Engine Compartment Fuse Box Relay; 2009 Ford F-150 Engine Compartment Fuse Box Relay; 2010 Ford F-150 Engine Compartment Fuse Box Relay; 2011 Ford F-150 Engine Compartment Fuse Box Relay; 2012 Ford F-150 Engine Compartment Fuse Box Relay; 2013 Ford F-150 Engine Compartment Fuse Box Relay; 2014 Ford F-150 Engine Compartment Fuse Box Relay; 2020 Ford F-150 Engine Compartment Fuse Box Relay.
Edge + Escape Fitment Compatible with 2007 Ford Edge Engine Compartment Fuse Box Relay; 2008 …; 2009 …; 2010 Ford Edge Engine Compartment Fuse Box Relay; plus later 2020 Ford Edge; 2021 Ford Edge; 2022 Ford Edge; 2023 Ford Edge; 2024 Ford Edge Engine Compartment Fuse Box Relay. Compatible with 2007 Ford Escape Engine Compartment Fuse Box Relay; 2008 …; 2009 …; 2010 …; 2011 …; 2012 Ford Escape Engine Compartment Fuse Box Relay.
Super Duty + Ranger Fitment Compatible with 2005 Ford F-250 Super Duty Engine Compartment Fuse Box Relay; 2006 …; 2007 …; 2008 …; 2009 …; 2010 Ford F-250 Super Duty Engine Compartment Fuse Box Relay; plus 2020 Ford F-250 Super Duty; 2021 …; 2022 Ford F-250 Super Duty Engine Compartment Fuse Box Relay. Compatible with 2005 Ford F-350 Super Duty Engine Compartment Fuse Box Relay; 2006 …; 2007 …; 2008 …; 2009 …; 2010 Ford F-350 Super Duty Engine Compartment Fuse Box Relay; plus 2020 Ford F-350 Super Duty; 2021 …; 2022 Ford F-350 Super Duty Engine Compartment Fuse Box Relay. Compatible with 2021 Ford Ranger Engine Compartment Fuse Box Relay (selected trims).
Lincoln Fitment (examples) Compatible with 2010 Lincoln Navigator Engine Compartment Fuse Box Relay; 2014 Lincoln Navigator Engine Compartment Fuse Box Relay; 2015 Lincoln Navigator Engine Compartment Fuse Box Relay; 2016 Lincoln Navigator Engine Compartment Fuse Box Relay. Compatible with 2015 Lincoln MKZ Engine Compartment Fuse Box Relay. Compatible with 2006 Lincoln Zephyr Engine Compartment Fuse Box Relay. (Model-year coverage depends on trim/equipment; match by OE number and relay position.)
Complementary Parts for Related Repairs For fuse-box service or diagnosis, many technicians also replace or check complementary components: Fuse Extractor F57Z-14417-AA, Diode F5TZ-14A604-A, and Circuit Breaker 7T4Z-14526-A (not included). These support proper fuse/relay panel operation when addressing intermittent accessory power or flasher issues; pair as needed during troubleshooting.
Description
This micro relay restores stable accessory power and flasher functions in vehicles that use the 4-terminal, 20A relay in the engine compartment fuse/relay box. It matches the OE footprint and terminals for a quick, plug-in replacement.
OE Cross-Refs: Replaces service numbers 5L3Z-14N089-AA and 8T2Z-14N089-C (superseded by HU5Z-14N089-B); engineering marking often appears as 8T2T-0101K-CA.
Electrical: 12V DC coil; 20A contact rating; 4 terminals; micro ISO relay footprint.
Location: Engine compartment fuse/relay box on most applications; some platforms use an interior fuse panel position.
Typical Functions: Accessory power relay; hazard/turn-signal flasher relay (application-specific—verify by your fuse-box legend).
Benefits: Fixes intermittent accessories, fast/no flash indicators, and heat-related dropouts at the fuse box.
What's Included: 1 × micro relay (no fuses or additional hardware).
Service Note: If issues persist, inspect related fuses/diodes/circuit breakers in the panel and confirm ground integrity.
Compatibility: Compatible with multiple Ford, Lincoln and Mercury applications. Always match by OE number and the relay cavity in your fuse diagram before purchase.
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