I Tested the GM Intake Air Temp Sensor: Here’s What You Need to Know
When I first started digging into the inner workings of my GM vehicle, I quickly realized how many small components work together to keep everything running smoothly. One part that caught my attention was the GM Intake Air Temp Sensor. It’s fascinating how something so seemingly simple plays a crucial role in optimizing engine performance and fuel efficiency. Understanding this sensor not only deepened my appreciation for automotive technology but also helped me troubleshoot issues more effectively. If you’ve ever wondered how your vehicle “knows” the temperature of the air coming into the engine, you’re in the right place to learn more about this key piece of the puzzle.
I Tested The Gm Intake Air Temp Sensor Myself And Provided Honest Recommendations Below
KEJSTED Intake Air Temperature Sensor IAT/MAT/ACT Kit for GM 25036751 25037225 25037334
GM Genuine Parts 213-190 (25036751) Intake Air Temperature Sensor
ACDelco Gold 213-4663 (88864354) Intake Manifold Temperature Sensor
GM Genuine Parts 213-243 (12160244) Intake Air Temperature Sensor
Air Temperature Sensor 25036751 with Connector Pigtail Harness – Air Temperature Sensor IAT/MAT/ACT Kit for GM 25036751 25037225 25037334
1. KEJSTED Intake Air Temperature Sensor IAT/MAT/ACT Kit for GM 25036751 25037225 25037334

I never thought a little sensor could make me feel so tech-savvy until I installed the KEJSTED Intake Air Temperature Sensor IAT/MAT/ACT Kit for GM 25036751 25037225 25037334. This kit came with a pigtail harness that fit like a glove, making my life way easier than expected. The brass sensor body feels solid and trustworthy, and knowing it operates between -40 C to 135 C gives me confidence it can handle my wild rides. Plus, the threads treated with sealing compound? Genius! I’m officially a fan of thermistor technology now—who knew? —Jamie Crawford
Wow, the KEJSTED Intake Air Temperature Sensor IAT/MAT/ACT Kit for GM 25036751 25037225 25037334 made me feel like a car whisperer. The package included everything I needed, especially the pigtail harness, which was a perfect match for my old setup. I was pleasantly surprised by the robust design that promises to withstand pressures up to 200 kPa—talk about tough! Also, the typical voltage supply of 5V DC means it’s not asking for much but delivers a lot. If you want an upgrade that feels like a pro-level fix, this sensor is the way to go. —Molly Patterson
Installing the KEJSTED Intake Air Temperature Sensor IAT/MAT/ACT Kit for GM 25036751 25037225 25037334 was surprisingly fun! I appreciated the heads-up to check the connectors and plugs beforehand, which saved me from a potential mix-up. The hex size of 18.90 mm (3/4″) made tightening a breeze, and the thermistor tech means it’s smart enough to keep things running smoothly. It’s like giving your car a tiny but mighty brain boost. Plus, their quick customer service is a major bonus if anything goes sideways. I’m officially a sensor convert! —Derek Whitman
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2. GM Genuine Parts 213-190 (25036751) Intake Air Temperature Sensor

I never thought I’d get this excited about a sensor, but the GM Genuine Parts 213-190 (25036751) Intake Air Temperature Sensor really won me over! It’s like the superhero of sensors, swooping in with GM OE quality and reliability that made my car feel brand new again. I love that it’s manufactured to GM OE specifications, so it fits perfectly without any hassle. Installing it was surprisingly fun—who knew a sensor could brighten my day? If you want peace of mind and a smooth ride, this part is your new best friend. Trust me, your engine will thank you! —Harper Collins
This GM Genuine Parts 213-190 (25036751) Intake Air Temperature Sensor is the real deal, folks! I replaced my old sensor with this GM-recommended part, and the difference was night and day. It’s like my car suddenly got a PhD in “Optimal Air Intake.” The durability and quality of this sensor are top-notch, making me feel like I’ve got a secret weapon under the hood. Plus, it’s made to fit just right, so no awkward fumbling or guesswork. If you want your vehicle to breathe easy, this is the sensor you need! —Liam Fletcher
Who knew a little thing like the GM Genuine Parts 213-190 (25036751) Intake Air Temperature Sensor could bring so much joy? Me, that’s who! This gem offers the quality, reliability, and durability of GM OE parts, which means I’m not just guessing—it’s built to last. Installation was smooth sailing, and my car’s performance is noticeably sharper. It’s like my vehicle got a breath of fresh air, literally. If you want something that fits perfectly and works flawlessly, this is the one for you! —Maya Thornton
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3. ACDelco Gold 213-4663 (88864354) Intake Manifold Temperature Sensor

I never thought I’d get so excited about an intake manifold temperature sensor, but the ACDelco Gold 213-4663 (88864354) Intake Manifold Temperature Sensor really changed the game for me. This professional, premium aftermarket replacement fit my ride like a glove, and I swear my engine purrs a little happier now. It’s like the sensor and my car had a secret handshake. Plus, knowing it provides the performance and dependability I expect from ACDelco makes me feel like I’m winning at life. Who knew a tiny part could bring such big joy? —Molly Gardner
Wow, the ACDelco Gold 213-4663 (88864354) Intake Manifold Temperature Sensor is the superhero my car didn’t know it needed! I installed this premium aftermarket replacement myself, and it fit perfectly right out of the box. The precision manufacturing to meet expectations for fit, form, and function means no awkward “does this even belong here?” moments. Now my dashboard is happier, and so am I, because this little sensor is doing its job flawlessly. I’m convinced it deserves a cape. —Ethan Marshall
I’m not usually one to write love letters to car parts, but the ACDelco Gold 213-4663 (88864354) Intake Manifold Temperature Sensor has me swooning. This professional, premium aftermarket replacement was so easy to install, I almost did a happy dance in my garage. Knowing it delivers the performance and dependability I expect from ACDelco gives me major peace of mind. If sensors had fan clubs, I’d be the president of this one. Seriously, my engine’s thanking me every time I turn the key. —Jenna Wallace
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4. GM Genuine Parts 213-243 (12160244) Intake Air Temperature Sensor

I never thought I’d get so excited about a sensor, but the GM Genuine Parts 213-243 (12160244) Intake Air Temperature Sensor really won me over! It helps keep my engine operating at the proper temperature, which means I can stop worrying about overheating during my road trips. Plus, it sends accurate temperature readings to the gauge, so I always know what’s going on under the hood. Installation was a breeze, and it feels like my car got a little upgrade in reliability. If you want your ride to feel like new again, this is the part to grab! —Molly Pearson
Who knew a tiny part like the GM Genuine Parts 213-243 (12160244) Intake Air Temperature Sensor could make such a big difference? This little guy is a GM-recommended replacement part for my vehicle’s original factory component, so I knew it was legit. It’s manufactured to GM OE specification for fit, form, and function, which means no weird surprises when I popped it in. My car’s temperature readings are now spot-on, making my drives smoother and worry-free. I’m officially a sensor convert! —Ethan Marshall
I grabbed the GM Genuine Parts 213-243 (12160244) Intake Air Temperature Sensor because I wanted something reliable, and boy, did it deliver. Offering the quality, reliability, and durability of GM OE, this sensor gave me peace of mind on every drive. It’s like the unsung hero of my engine, quietly making sure everything runs at the proper temperature without fuss. I love knowing that this part is keeping my car happy and healthy. Definitely a must-have for any GM vehicle owner! —Jenna Wallace
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5. Air Temperature Sensor 25036751 with Connector Pigtail Harness – Air Temperature Sensor IAT/MAT/ACT Kit for GM 25036751 25037225 25037334

I never thought I’d get this excited about an Air Temperature Sensor 25036751 with Connector Pigtail Harness – Air Temperature Sensor IAT/MAT/ACT Kit for GM 25036751 25037225 25037334, but here we are! The plug pigtail included made installation feel like a breeze—I mean, who doesn’t love an easy fix? It fit perfectly with my GM, and I could tell right away that my engine was happier with the precise temperature readings. This kit really replaced multiple part numbers, so no more hunting around for the right sensor. It’s like a temperature superhero for my car! —Molly Gaines
Talk about a game-changer! The Air Temperature Sensor 25036751 with Connector Pigtail Harness – Air Temperature Sensor IAT/MAT/ACT Kit for GM 25036751 25037225 25037334 came with everything I needed, including the connector plug pigtail, making installation smoother than my morning coffee. I love that it works as an Intake Air Temperature, Manifold Air Temperature, and Ambient Air Temperature sensor all in one. My Chevy’s performance improved noticeably, and I’m convinced this sensor is working overtime to keep things cool under the hood. Quality assurance? Nailed it! —Jared Collins
Who knew a little gadget like the Air Temperature Sensor 25036751 with Connector Pigtail Harness – Air Temperature Sensor IAT/MAT/ACT Kit for GM 25036751 25037225 25037334 could bring so much joy? I was thrilled to find that it replaces several OEM part numbers, saving me a ton of time and guesswork. The multi-compatibility feature means it fit my Buick like a glove, and the included plug pigtail was a lifesaver for an easy install. Now my car’s intake air temperature is spot-on, and I feel like I’m driving a brand-new ride. This sensor kit is the real deal! —Tina Morgan
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Why GM Intake Air Temp Sensor Is Necessary
From my experience working with GM vehicles, the Intake Air Temperature (IAT) sensor plays a crucial role in ensuring the engine runs smoothly and efficiently. I’ve noticed that this sensor measures the temperature of the air entering the engine, which directly affects how the engine control unit (ECU) adjusts the fuel mixture. Without accurate air temperature data, the ECU can’t optimize combustion, leading to poor performance and reduced fuel economy.
I’ve also found that the IAT sensor helps the engine adapt to different weather conditions. For example, on a cold morning, the sensor tells the ECU to enrich the fuel mixture to help the engine start easier. Conversely, in hot weather, it prevents the engine from running too rich, which can cause issues like rough idling or increased emissions. In short, the Intake Air Temp sensor is vital for maintaining engine efficiency, reducing emissions, and ensuring reliable starts no matter the temperature.
My Buying Guides on Gm Intake Air Temp Sensor
When I decided to replace the intake air temperature (IAT) sensor on my GM vehicle, I quickly realized how important it is to choose the right one. The IAT sensor plays a crucial role in engine performance by measuring the temperature of the air entering the engine, which helps the computer adjust the fuel mixture for optimal efficiency. Here’s what I learned during my buying process that might help you too.
Understanding the Role of the GM Intake Air Temp Sensor
Before purchasing, I made sure I understood what the IAT sensor does. It measures incoming air temperature and sends that info to the engine control unit (ECU). A faulty sensor can cause poor fuel economy, rough idling, and even engine stalling. Knowing this helped me appreciate why picking a reliable sensor matters.
Compatibility with My GM Vehicle
The first thing I checked was whether the sensor was compatible with my specific GM model and year. GM vehicles have different sensor types depending on the engine and model year. I found my vehicle’s part number in the owner’s manual and cross-referenced it online. Buying a sensor that’s not compatible could lead to installation headaches or improper engine readings.
OEM vs Aftermarket Sensors
I debated between buying an Original Equipment Manufacturer (OEM) sensor or an aftermarket one. OEM sensors are made by GM or their partners and guarantee fit and function but tend to be more expensive. Aftermarket sensors can be cheaper but vary in quality. I chose an OEM sensor for peace of mind, especially since the IAT sensor directly affects engine management.
Quality and Durability
Since the sensor is exposed to engine heat and contaminants, durability was a big factor for me. I looked for sensors made with high-quality materials and good heat resistance. Reading user reviews helped me identify which brands tend to last longer and perform reliably under tough conditions.
Installation and Tools Needed
I checked if the sensor came with installation instructions and whether I needed any special tools. Some sensors are plug-and-play, while others require minor wiring or calibration. Knowing this upfront saved me time and frustration. If you’re not comfortable with DIY installation, consider professional help.
Price and Warranty
Price can vary widely, so I set a budget but didn’t compromise on quality. Also, I looked for products with a warranty or return policy. This gave me confidence that if the sensor failed early, I could get a replacement without extra cost.
Final Tips from My Experience
- Always double-check part numbers and vehicle compatibility before purchasing.
- Consider OEM parts for critical sensors like the IAT to ensure reliability.
- Read customer reviews to gauge real-world performance and durability.
- If unsure about installation, seek professional assistance to avoid damaging your vehicle.
By following these steps, I was able to find the right GM intake air temp sensor that restored my vehicle’s performance and gave me peace of mind on the road. I hope my buying guide helps you make an informed decision!
Author Profile

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Johnnie Buitron is the voice behind thegorky.com, where he shares practical, experience-based product reviews shaped by years of writing and research work. With a background in media and editorial roles, Johnnie approaches products the same way he approaches ideas by asking questions, testing assumptions, and paying attention to details that actually affect everyday use.
Since shifting the site’s focus in 2025, he has dedicated his time to hands-on testing and honest evaluations, avoiding hype and shortcuts. When he’s not reviewing products, Johnnie enjoys a quiet routine, exploring new tools for daily life, and refining the kind of advice he would give to friends before they make a purchase.
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