SKU: 66577641329

M14 x 1.5 RIFE Hi IAT Air Temperature Sensor GM Delphi 40 to 485°F (52-1249)

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Description

M14 x 1.5 RIFE Hi IAT Air Temperature Sensor GM Delphi 40 to 485°F (52-1249)M14 x 1. 5 RIFE Hi IAT Air Temperature Sensor Direct Wire 40 to 485F (52 1249) RIFE "Hi Temp" IAT Intake Air Temp Sensors are perfect for 40 485F temperature ranges of intake air temps. These sensors feature ultra fast response thermistors which are not only faster but more accurate than traditional EFI sensors on the market. Fast response times and accurate readings means more accurate adjustments to your tune for a safer and more reliable tuneup

M14 x 1.5 RIFE Hi IAT Air Temperature Sensor Direct Wire 40 to 485°F (52-1249)

RIFE "Hi Temp" IAT / Intake Air Temp Sensors are perfect for 40°-485°F temperature ranges of intake air temps. These sensors feature ultra-fast response thermistors which are not only faster but more accurate than traditional EFI sensors on the market. Fast response times and accurate readings means more accurate adjustments to your tune for a safer and more reliable tuneup that you can count on.  

The Hi-AT sensor series is typically only used for turbo and blower cars as an IAT sensor and for compressor outlet temperature measurement.  Due to the high temperature ceiling it has, the resolution at lower temperatures will be greatly decreased. They are also acceptable for other applications around the vehicle that require an extended temperature range. The Hi-AT sensor is optimized for accuracy and resolution in the 40°-485°F temperature range.

Features:

  • M14 x 1.5 thread
  • 15x Faster Response Time
  • 3x More Accurate Readings
  • Machined and built in house
  • 40 to 485°F
  • Hard Anodized CNC Machined housing

Connectors Sold Separately

Flying Lead Connector Kit: Click Here

Connector Kit w/ crimp terminals: Click Here

*Note: Unlike most Motion Raceworks family of products, these sensors like most electronics are not 100% Made in the USA. While we diligently attempt to source all US electronic components, we have not been able to source everything domestically. 

Please note: this will not work with Fueltech or Haltech ECU. For these ECU please use part number 52-1248 or Click Here . These standard IAT are able to be configured and run as a "Hi" version from -5 to 450 degrees F.

This sensor will not be a direct plug and play for your factory ECU. You will need to calibrate the ECU to read the sensor data correctly.

Calibration Setup for EFI Systems Click Below Links

Fueltech

Holley

Haltech

Need a different thread pattern or electrical connection? Check out our full line of Air Temp Sensors HERE

Please note: Thermistors do not have a certain polarity. So when wiring, wire color or pin location on our sensor does not correlate or require specific configuration. 

General Calibration Info

Learn about the benefits of a fast acting intake air temperature sensor 

Learn more about proper IAT positioning as well as tips and tricks by watching this video. 

Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 66577641329

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Dora F
Houston, US
★★★★★ 3
Decent firm pillow
Size: Queen (Adjustable Foam)
I've been using the shredded foam pillow since January. At first it was too packed/firm, so I had to remove some of the stuffing from mine. When fully full, it is a chore to get it in/out of our standard pillow cases. Over time, the pillow has developed a divot from where my head rests the most, so I'll need to fully remove/fluff/reinsert the foam to get it back into shape. Overall, I find the comfort of this pillow just okay. It absorbs your head heat even in the winter, so if you prefer a cool pillow, I don't recommend it. It does seem to be a good quality pillow otherwise. I expect I'll be able to use this one for a few years without it falling apart. It doesn't smell bad either. My husband really likes the pillow, but I've also seen him sleep comfortably on very old pillows that have turned into pancakes... so do with that information what you will.
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Reviewed in the United States on June 25, 2025
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Steph
Bozeman, US
★★★★★ 5
Best Pillow ever
Size: Queen (Adjustable Foam)
I am in love with this pillow. I have such a hard time finding a pillow that works for me because they are usually to big or too flat. This pillow is right where I need it to be. It is soooo comfortable. My neck has no pain anymore. The quality is high as well. No bad stitching. The stuffing is evenly distributed and the pillow is so soft sometimes I don't even want to use a pillow case but I do haha. Definitely worth the money.
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Reviewed in the United States on November 6, 2025
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DeannaLea
Birmingham, US
★★★★★ 5
These pillows are way nicer than hotel pillows!
Size: Queen / Standard, Color: White
This is a real review and I am not a robot. I’m actually sleeping with these pillows right now. They are so comfortable the right softness levels. Oh my gosh they’re awesome. I don’t know about hotel pillows, but these are way better quality form with your head and you sleep like a baby.
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Reviewed in the United States on May 29, 2026
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Candice
Los Angeles, US
★★★★★ 5
Absolutely Amazing!! Truly the perfect pillow!
Size: Queen / Standard, Color: White
I absolutely love these pillows. They couldn't be more perfect! I have spent years buying and throwing out pillow after pillow. I struggle with a lot of neck and upper back pain and I struggled even more trying to find the right pillow on top of spending several hundred dollars on pillows that just got tossed. If you want a great night of sleep and you want to wake up feeling refreshed and not struggling with fatigue and every day neck or back pain you absolutely MUST give these pillows a try!!! They are super easy to wash, made with great quality and have not once bothered my many allergies like most pillows do. I have not noticed any of the chemical odors moat pillows give off, easy to adjust does great with just occasional fluffing. So far has stayed fluffy for me although I did put it in the dryer a time or two as the instructions stated to help with extra fluff and also because I couldn't wait for them to air fluff when they first arrived, an Air B&B we stayed at had these and I ordered them before we even headed back home I loved them so much I had to order my own and was too impatient to wait!
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Reviewed in the United States on May 30, 2026
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Marie Phillips
Los Angeles, US
★★★★★ 4
Comfortable Support
Size: King, Color: White
These bed pillows provide good comfort and support for sleeping, with a nice balance of softness and structure. They hold their shape fairly well and work for both back and side sleeping positions. The overall feel is comfortable and helps improve sleep quality. Overall, they are reliable everyday pillows that offer good comfort and support.
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Reviewed in the United States on May 8, 2026

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