Specs & Interchange (verified): 4 blade terminals; 12VDC; compact gray multi-purpose relay for engine-bay fuse/relay blocks. OE reference 13500120; interchange ACDelco 15-51279. Typical use includes engine cooling control and other accessory circuits depending on vehicle configuration. Check part number to confirm before purchase. (Voltage/terminals from ACDelco 15-51279 spec; OE mapping and function from GM dealer/parts sources.)
Operation, location & symptoms (what it controls): Installs in the engine compartment fuse/relay box; used by GM platforms for engine air cooling / fan control, switching power to the load when triggered by a low-current control signal. Failure symptoms may include radiator fan not engaging, fan running continuously, A/C performance issues, or overheating warnings. Replace in pairs where multiple identical relays are used.
Fitment — Compatible with Chevrolet Trax (per year, engine-bay fuse/relay box relay): 2015 Compatible with Chevrolet Trax Engine Compartment Relay; 2016 Compatible with Chevrolet Trax Engine Compartment Relay; 2017 Compatible with Chevrolet Trax Engine Compartment Relay; 2018 Compatible with Chevrolet Trax Engine Compartment Relay; 2019 Compatible with Chevrolet Trax Engine Compartment Relay; 2020 Compatible with Chevrolet Trax Engine Compartment Relay; 2021 Compatible with Chevrolet Trax Engine Compartment Relay; 2022 Compatible with Chevrolet Trax Engine Compartment Relay
Fitment — Compatible with Buick Encore (per year, engine-bay fuse/relay box relay): 2017 Compatible with Buick Encore Engine Compartment Relay; 2018 Compatible with Buick Encore Engine Compartment Relay; 2019 Compatible with Buick Encore Engine Compartment Relay; 2020 Compatible with Buick Encore Engine Compartment Relay; 2021 Compatible with Buick Encore Engine Compartment Relay; 2022 Compatible with Buick Encore Engine Compartment Relay.
Fitment — Compatible with Buick Regal (per year, engine-bay fuse/relay box relay): 2011 Compatible with Buick Regal Engine Compartment Relay; 2012 Compatible with Buick Regal Engine Compartment Relay; 2013 Compatible with Buick Regal Engine Compartment Relay; 2014 Compatible with Buick Regal Engine Compartment Relay; 2015 Compatible with Buick Regal Engine Compartment Relay; 2016 Compatible with Buick Regal Engine Compartment Relay; 2017 Compatible with Buick Regal Engine Compartment Relay.
Fitment — Compatible with Chevrolet Malibu (per year, engine-bay fuse/relay box relay): 2013 Compatible with Chevrolet Malibu Engine Compartment Relay; 2014 Compatible with Chevrolet Malibu Engine Compartment Relay; 2015 Compatible with Chevrolet Malibu Engine Compartment Relay; 2016 Compatible with Chevrolet Malibu Engine Compartment Relay
Fitment — Compatible with Chevrolet Impala (per year, engine-bay fuse/relay box relay): 2014 Compatible with Chevrolet Impala Engine Compartment Relay; 2015 Compatible with Chevrolet Impala Engine Compartment Relay; 2016 Compatible with Chevrolet Impala Engine Compartment Relay.
Fitment — Other verified platforms (engine-bay fuse/relay box relay): 2017 Compatible with GMC Acadia Engine Compartment Relay; 2017 Compatible with Cadillac XT5 Engine Compartment Relay; 2012 Compatible with Buick Verano Engine Compartment Relay; 2010 Compatible with Buick LaCrosse Engine Compartment Relay; 2013 Compatible with Buick LaCrosse Engine Compartment Relay; 2014 Compatible with Buick LaCrosse Engine Compartment Relay; 2015 Compatible with Buick LaCrosse Engine Compartment Relay; 2016 Compatible with Buick LaCrosse Engine Compartment Relay; 2010 Compatible with Buick Allure Engine Compartment Relay.
Helpful complementary items (sold separately): For a fuller under-hood refresh on many of these platforms, consider: Compatible with GM 13500114 Accessory Time-Delay Cutoff Relay; Compatible with GM 13503102 Multi-Use Relay; Compatible with GM 13598347 Relay. These often live in the same fuse/relay block; replacing related relays together can help resolve intermittent fan/A/C power issues more reliably. Always verify by OE number and vehicle fitment
وصف
What it is: 4-pin, 12V gray multi-purpose relay designed for engine-bay fuse/relay boxes on select GM platforms.
Typical function: Controls engine air cooling / radiator fan and other accessory power circuits as equipped.
Key SpecificationsOE Reference: 13500120; Interchange: ACDelco 15-51279
Voltage: 12V DC
Terminal Quantity/Type: 4 blade male terminals
Installation Location: Engine compartment fuse/relay box
Color: Gray
Common Symptoms When Replacement Is NeededRadiator fan fails to engage or runs continuously
Overheating warnings or A/C performance issues
Intermittent power to related accessories
What's Included1 × 13500120 relay (no fuses or brackets included)
NotesMatch by OE number before purchase; confirm the cavity location in the engine-bay fuse/relay block.
Consider refreshing related under-hood relays at the same time for best results (sold separately).
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