🌡️ Stay cool, drive smarter — the sensor GM trusts!
This Genuine GM ACDelco Engine Coolant Temperature Sensor (213-4777) delivers precise, ultra-fast temperature readings with a 1ms response time, engineered to GM OE standards for perfect fit and durability. Designed to optimize engine performance by enabling real-time air/fuel and ignition adjustments, it withstands temperatures up to 150°C and mounts easily with its flange design. Made in Germany, it’s the trusted upgrade for GM vehicles seeking factory-level reliability.
| Brand | GM |
| Item dimensions L x W x H | 2.9 x 1.4 x 0.8 inches |
| Item Weight | 0.06 Pounds |
| Style | Modern |
| Measurement Accuracy | High |
| Mounting Type | Flange Mount |
| Output Type | Electrical signal |
| Response Time | 1 Milliseconds |
| Specific Uses For Product | Temperature |
| Upper Temperature Rating | 1.5E+2 Degrees Celsius |
| UPC | 707773767344 |
| Global Trade Identification Number | 00707773767344 |
| Manufacturer | ACDelco |
| Model | Coolant Sensor |
| Item Weight | 0.96 ounces |
| Product Dimensions | 2.9 x 1.4 x 0.8 inches |
| Country of Origin | Germany |
| Item model number | 213-4777 - Coolant Sensor |
| Exterior | Machined |
| Manufacturer Part Number | 213-4777 |
| OEM Part Number | 12639899 |
| Wattage | 1 watts |
L**9
Buy AC Delco if you still have code popping
Bought a Car Quest brand sensor before this one and regret not buying AC Delco for it. Replaced the Car Quest twice b/c it would pop code after a mile and sometimes as soon as I started it (A/C off and temp gauge not working). I got tired of pulling the battery terminal to reset the code so I decided to just go with genuine parts after dealing with it for months. It fixed it the first time. No real rhyme or reason but it must be b/c it was AC Delco. If you are still having problems just buy OEM for it. The real kicker was the Car Quest sensor was $34 from Advance Auto. I could have saved time and money if I just bought this one. Another side note: The other sensor had a different size MM head, don't remember what it was but it was larger and barely fit b/c the socket was bigger.
K**S
Exact Fit Genuine GM part!
Exact fit Genuine GM part. Even for a rookie this was a simple part to replace. Get a 19mm Deep Socket and it’s so easy to remove and replace. Use a pick to unlock the wiring harness (hardest part) and it won’t take more than than 30 mins. Also disconnect the negative terminal on the battery and the codes should clear. You’ll save a ton DIY vs a dealer. Watch a video to see where it’s at - just left if Dipstick on my Acadia. It’s Easy!!
K**H
no issues
It lasted longer than the buick
R**D
Quality Product
Solved my problem
H**N
Good
Good
B**E
Good quality
Great quality. Worth the money.. Function perfect for the need. Cheapest temperature sensor but expensive quality. Fit perfect. Fixed issue.
V**N
great
great product
L**.
That it would fix the problem.
This was the right part for my vehicle and it fixed the problem with the fan running afterthe engine was shut off and also the problem with the AC compressor not running when you turnedthe AC on.
Trustpilot
2 weeks ago
1 week ago
