Ensuring clear rear visibility is crucial for driving safety, especially in adverse weather conditions. A functional defogger relay is essential for activating your vehicle's rear defogger, preventing fog or ice buildup on the rear window. Selecting a reliable replacement ensures consistent performance and peace of mind on the road.
Looking for the best Automotive Replacement Defogger Relays?
Discover now our comparison of the best Automotive Replacement Defogger Relays. It is never easy to choose from the wide range of offers. On the market, you will find an incalculable number of models, all at different prices. And as you will discover, the best Automotive Replacement Defogger Relays are not always the ones at the highest prices! Many criteria are used, and they make the richness and relevance of this comparison.
To help you make the best choice among the hundreds of products available, we have decided to offer you a comparison of the Automotive Replacement Defogger Relays in order to find the best quality/price ratio. In this ranking, you will find products listed according to their price, but also their characteristics and the opinions of other customers. Also discover our comparisons by categories. You won’t have to choose your products at random anymore.
- Country Of Origin : United States
- The Package Height Of The Product Is 2.437 Inches
- The Package Length Of The Product Is 9.51 Inches
- The Package Width Of The Product Is 6.439 Inches
- Replace Part Number: 15328864,12193604，38860-86Z40, 8-12177-236-0, 8-12193-604-0, 8-13503-102-0, 89057651, 96190189, 0K2A1-67-740, 12088592, 12135175, 12177236, 12193614, 13503102, 19106615, 19116860, PW853596, OK2A167740, 9026316
- 40A High-Switch Capacity: Handles 12V/40A loads for demanding systems like A/C compressors, radiator fans, fuel pumps, horns, and defoggers.
- For GM Vehicle Compatibility: Direct replacement for Chevy Silverado (2003-2010), Impala (1994-2011), GMC Trucks (1995-2009), Buick Lucerne (2006-2010), Pontiac Grand Prix, and more.
- SPDT Versatility: Single Pole Double Throw (SPDT) design lets you switch between two circuits, ideal for complex automotive electrical setups.
- Easy Multi-Mount Installation: Compatible with socket or panel mounting. IP65-sealed and dust-cover options protect against moisture and debris.
- 20-amp high current mini automotive relay with suppression diode and 5 quick disconnect terminals, 24V, Power Consumption: 2.3 W
- Typical applications: rear window defogger, battery, disconnection, power distribution (clamp 15)
- Suggested Connectors: 75280, 75281, 75282 PC Board Mounting
- Part Reference Number: TE V23234-A0004-X051, A0035459805, A0045453305, A0045457805, 0332209204, 007903021, 4RD007903-021, 4RD933332-091, 21244697,4786690,9518230, etc.
- Guarantee Quality Service: 100% testing make confirm it working before packing, 3 Months no reason back , 1 year’s free replacement new one if meet any quality issue.
- Some GM Genuine Parts may have formerly appeared as ACDelco GM Original Equipment (OE)
- GM Genuine Parts are designed, engineered and tested to rigorous standards, and are backed by General Motors
- GM Engineers design and validate OE parts specifically for your Chevrolet, Buick, GMC, or Cadillac vehicle
- GM regularly updates production and service part designs to integrate new materials and technologies
- Specs & Interchange (OE-focused) 12V DC plug-in 5-pin relay for HVAC blower/defogger/aux circuits; body commonly stamped “156700-2550”. Direct replacement for OE 90987-04010; supersession 90080-87025 (also cataloged with 9008087031, 9098704006 on...
- Operation & Install Location (model-dependent) Controls the heater blower motor circuit in many applications; on some trims it’s used for rear defogger, daytime running light (DRL), or A/C water pump control. Typical symptoms of a failed relay include...
- Fitment — Toyota Camry (NA market) 2003–2019 Compatible with Toyota Camry HVAC Blower Motor Circuit (Engine Room/Instrument Panel Junction Block; model-dependent) Relay. Covers common LE/SE/XLE trims across 4-cyl and V6 engines where catalog lists...
- Fitment — Toyota Corolla 2003–2013 Compatible with Toyota Corolla HVAC Blower Motor Circuit (Instrument Panel Junction Block) Relay; 2019–2024 Compatible with Toyota Corolla HVAC Blower Motor Circuit (Junction Block) Relay. Location for...
- Fitment — Toyota Highlander & 4Runner 2003–2013 Compatible with Toyota Highlander HVAC Blower Motor Circuit (Engine Room/Instrument Panel Junction Block) Relay; 2003–2009 Compatible with Toyota 4Runner HVAC Blower Motor Circuit Relay. Used where...
- Fitment — Avalon, C-HR, Celica 2005–2011 Compatible with Toyota Avalon HVAC Blower/Defogger Circuit Relay; 2019–2022 Compatible with Toyota C-HR HVAC Blower Circuit Relay; 2002–2005 Compatible with Toyota Celica HVAC Blower Circuit Relay. OE...
- Fitment — Scion (tC, xA, xB, xD) 2005–2016 Compatible with Scion tC HVAC Blower Circuit Relay; 2004–2006 Compatible with Scion xA HVAC Blower Circuit Relay; 2004–2006 & 2008–2015 Compatible with Scion xB HVAC Blower Circuit Relay...
- Fitment — Lexus highlight (NA example) 2006–2014 Compatible with Lexus IS (IS250/IS350/IS F) Defogger/Blower Circuit Relay used where catalog supersedes to 90080-87025 for XE20 platform. For broader Lexus coverage, verify by VIN on Lexus OE catalog...
- Complementary items (sold separately) for a thorough HVAC/electrical refresh Pair with Compatible with Toyota 90987-02028 A/C Magnetic Clutch Relay (Toyota superseded fix for A/C clutch no-engage / A/C light flashing) and Compatible with Toyota...
- Replace Part Number: 15328864,12193604，38860-86Z40, 8-12177-236-0, 8-12193-604-0, 8-13503-102-0, 89057651, 96190189, 0K2A1-67-740, 12088592, 12135175, 12177236, 12193614, 13503102, 19106615, 19116860, PW853596, OK2A167740, 9026316
- 40A High-Switch Capacity: Handles 12V/40A loads for demanding systems like A/C compressors, radiator fans, fuel pumps, horns, and defoggers.
- For GM Vehicle Compatibility: Direct replacement for Chevy Silverado (2003-2010), Impala (1994-2011), GMC Trucks (1995-2009), Buick Lucerne (2006-2010), Pontiac Grand Prix, and more.
- SPDT Versatility: Single Pole Double Throw (SPDT) design lets you switch between two circuits, ideal for complex automotive electrical setups.
- Easy Multi-Mount Installation: Compatible with socket or panel mounting. IP65-sealed and dust-cover options protect against moisture and debris.
- Specs & Interchange — 12V blade-type mini relay, 4 terminals, plug-in mount; replaces/supersedes: Compatible with GM 13306943 / 13468936 / 12177232; cross refs: Compatible with ACDelco 13468936, Standard Motor Products RY-1760, Duralast...
- Operation, install & fixes — Mounts in the engine compartment fuse & relay box; used to switch Secondary Air Injection (A.I.R.) pump on many applications, and may also serve fan/defogger/accessory functions depending on vehicle. Typical fixes include...
- Cadillac SRX fitment (year-by-year — Underhood Fuse Block Relay): 2010 Compatible with Cadillac SRX, 2011 Compatible with Cadillac SRX, 2012 Compatible with Cadillac SRX, 2013 Compatible with Cadillac SRX, 2014 Compatible with Cadillac SRX...
- Cadillac XTS fitment (year-by-year — Underhood Fuse Block Relay): 2013 Compatible with Cadillac XTS, 2014 Compatible with Cadillac XTS, 2015 Compatible with Cadillac XTS, 2016 Compatible with Cadillac XTS, 2017 Compatible with Cadillac XTS...
- Chevrolet Camaro fitment (year-by-year — Underhood Fuse Block Relay): 2010 Compatible with Chevrolet Camaro, 2011 Compatible with Chevrolet Camaro, 2012 Compatible with Chevrolet Camaro, 2013 Compatible with Chevrolet Camaro, 2014 Compatible with...
- Chevrolet Cruze fitment (year-by-year — Underhood Fuse Block Relay): 2011 Compatible with Chevrolet Cruze, 2012 Compatible with Chevrolet Cruze, 2013 Compatible with Chevrolet Cruze, 2014 Compatible with Chevrolet Cruze, 2015 Compatible with Chevrolet...
- Chevrolet Colorado fitment (year-by-year — Underhood Fuse Block Relay): 2015 Compatible with Chevrolet Colorado, 2016 Compatible with Chevrolet Colorado, 2017 Compatible with Chevrolet Colorado, 2018 Compatible with Chevrolet Colorado, 2019 Compatible...
- GMC Canyon fitment (year-by-year — Underhood Fuse Block Relay): 2015 Compatible with GMC Canyon, 2016 Compatible with GMC Canyon, 2017 Compatible with GMC Canyon, 2018 Compatible with GMC Canyon, 2019 Compatible with GMC Canyon, 2020 Compatible with GMC...
- Buick & SAAB fitment (year-by-year — Underhood Fuse Block Relay): 2008 Compatible with Buick Lucerne, 2009 Compatible with Buick Lucerne, 2010 Compatible with Buick Lucerne, 2011 Compatible with Buick Lucerne; 2021 Compatible with Buick Envision...
- Chevrolet Impala & Silverado HD fitment (year-by-year — Underhood Fuse Block Relay): 2016 Compatible with Chevrolet Impala, 2017 Compatible with Chevrolet Impala, 2018 Compatible with Chevrolet Impala, 2019 Compatible with Chevrolet Impala...
- Some GM Genuine Parts may have formerly appeared as ACDelco GM Original Equipment (OE)
- GM Genuine Parts are designed, engineered and tested to rigorous standards, and are backed by General Motors
- GM Engineers design and validate OE parts specifically for your Chevrolet, Buick, GMC, or Cadillac vehicle
- GM regularly updates production and service part designs to integrate new materials and technologies
- 【Practical Function】: AC relays can be used to control a variety of electrical equipment by controlling the on-off of a circuit. And it can convert low voltage and small current signals into high voltage and high current control signals to realize...
- 【Excellent Quality】: It is made of high quality brass with good corrosion resistance and high electrical conductivity, ensuring a secure electrical connection even under prolonged use. It can effectively resist environmental erosion and extend the...
- 【High Performance】: This relay offers significant advantages in the automotive industry, responding precisely to AC electrical signals for fast on-off control of circuits. Please note: The number in the last row of the product is the serial number...
- 【Easy to Carry】: It measures 0.87 x 0.57 x 1.07 inches and is very easy to carry. It is suitable for ordinary cars and easy to operate. You only need to connect the relay with wires, no other tools are needed, convenient for you to use and replace, so...
- 【Wide Application】: Our relays are designed to be flexible and suitable for a wide range of applications. It can be applied to apply to air conditioning, fan, starter, headlight, horn, ignition, fog light, rear window defroster, blower, baggage light...
- Mini ISO automotive relay.
- 70A switching capability.
- Extended temp. range up to 125°C.
- 1 Form A contact arrangement.
- Typical Applications:Fog lamp & headlight control, Rear window defogger, Air-conditioningFuel pump control, ABS, Traction control system, Cooling fan control.Battery disconnection device, High-speed fan control.
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Last update on 2026-04-16 / Affiliate links / Images from Amazon Product Advertising API
How to Choose the Best Automotive Replacement Defogger Relays
Understanding Compatibility and Specifications
When selecting a replacement defogger relay, the most critical factor is ensuring it is fully compatible with your vehicle's make, model, and year. Automotive electrical systems are highly specific, and a relay designed for one vehicle may not function correctly, or even fit, in another. Consult your vehicle's owner's manual or a reputable automotive parts database to identify the precise OEM part number or equivalent specifications. Pay close attention to the relay's pin configuration, voltage rating (typically 12V), and amperage capacity to match the original unit.
Prioritizing Quality and Durability
A defogger relay is a vital electrical component, and its reliability directly impacts your safety. Opt for relays from established manufacturers known for producing high-quality automotive parts. These relays often feature robust housing, high-grade internal components, and precise manufacturing tolerances that contribute to a longer lifespan and consistent performance. While some aftermarket options may be more affordable, investing in a durable relay can prevent premature failure and the need for frequent replacements, offering better long-term value.
Installation and Safety Considerations
Replacing a defogger relay is often a straightforward process, but proper installation is key to its functionality and safety. Before attempting any electrical work, always disconnect the vehicle's battery to prevent short circuits or electrical shocks. Locate the existing relay, which is typically found in the fuse box under the hood or in the passenger compartment. Ensure the new relay seats firmly into its socket. If you are unsure about the installation process, it is advisable to consult a professional mechanic to avoid potential damage to your vehicle's electrical system.
Recognizing Symptoms of a Failing Relay
Knowing the signs of a failing defogger relay can help you address the issue promptly. The most common symptom is a non-functional rear defogger, even when the switch is activated and the fuse is intact. You might also notice an audible click from the relay that doesn't result in defogger activation, or intermittent operation where the defogger works sporadically. In some cases, a burning smell or visible discoloration on the relay itself could indicate an internal fault, signaling an urgent need for replacement to restore clear rear visibility.
