4PCS 515176774 301-1C-C-R1 U01 12V 5-Pin Micro-ISO Relay SPDT 35A/20A — Interchange Compatible with GM 12077866 19116058 13500126 & Compatible with Navistar 3519350C1 — Fuse Relay Center Replacement

Specs + Interchange (verified): SPDT (Form C) 5-pin Micro-ISO 280; NO 35A @14V, NC 20A; 12V coil ~1.2W, ~123 Ω; AgSnO contacts; −40 °C–125 °C; plug-in cube (≈25×22.5×15 mm). Interchanges: Compatible with GM 12077866, 19116058, 13500126, 19115082, 19115296, 13361778, 12135180, 13500128, 13502678, 15328867, 15393413, 21997404; Compatible with Navistar 3519350C1. Operation / Install + Symptoms: Drop-in Micro-280 relay for the vehicle fuse/relay center / power control box; commonly used on A/C compressor clutch, radiator/cooling fan, fog/DRL, headlamp/turn, and door lock circuits. Typical symptoms this solves: intermittent/no A/C engagement, fan won’t run, fog/DRL inoperative, headlamp/turn faults, door locks inoperative.. Compatible with GM SUVs/Trucks (verified examples): 1997 Compatible with Chevrolet Tahoe Fuse/Relay Center Relay; 1999 Compatible with Chevrolet Tahoe Fuse/Relay Center Relay; 2001 Compatible with Chevrolet Tahoe Fuse/Relay Center Relay; 2002 Compatible with Chevrolet Tahoe Fuse/Relay Center Relay; 2003 Compatible with Chevrolet Tahoe Fuse/Relay Center Relay. (Fog/DRL category; Micro-280 code 7866.). Compatible with GM Full-Size Pickups (verified examples): 1999 Compatible with Chevrolet Silverado 1500 Fuse/Relay Center Relay; 2003 Compatible with Chevrolet Silverado 1500 Fuse/Relay Center Relay; 2004 Compatible with Chevrolet Silverado 1500 Fuse/Relay Center Relay; 2004 Compatible with GMC Sierra 1500 Fuse/Relay Center Relay; 2006 Compatible with GMC Sierra 1500 Fuse/Relay Center Relay. (Fog/DRL and radiator-fan positions shown in catalogs.). Compatible with GM Vans/SUV (verified examples): 2006 Compatible with GMC Savana 3500 Fuse/Relay Center Relay; 2004 Compatible with GMC Envoy Fuse/Relay Center Relay. (A/C compressor, radiator-fan categories.). Compatible with Compact/Small Trucks (verified examples): 2002 Compatible with Chevrolet S-10 Fuse/Relay Center Relay; 2003 Compatible with GMC Sonoma Fuse/Relay Center Relay. (Daytime Running Light relay category lists Micro-280/“code 7866”.). Why this relay footprint: Micro-ISO 280 package with resistor-suppressed coil reduces back-EMF, protects modules, and matches the OE’s blade footprint for quick replacement in fuse/relay centers; engineered for high current loads in under-hood environments. Complementary items (sold separately) to refresh circuits together: pair with Compatible with GM 13500126 (black multi-purpose 5-pin used across headlamp/DRL/A/C) and Compatible with GM 15328864 (common A/C compressor relay on some applications) to resolve intermittent faults across adjacent circuits during the same service