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🌟 Keep your engine cool, your ride smarter, and your status genuine.
The GM Genuine Parts 55591401 Engine Coolant Temperature Sensor is a high-accuracy, factory-spec replacement part designed to monitor engine temperature precisely. Manufactured to GM OE standards, it ensures perfect fit, durability, and reliable performance, helping your vehicle’s engine control module optimize fuel and ignition settings. Tested rigorously and backed by a 12-month warranty, it’s the trusted choice for maintaining your GM vehicle’s peak efficiency.





| ASIN | B00S0FHETW |
| Best Sellers Rank | #112,284 in Automotive ( See Top 100 in Automotive ) #116 in Automotive Replacement Coolant Temperature Sensors |
| Brand Name | GM GENUINE PARTS |
| Customer Reviews | 4.6 4.6 out of 5 stars (718) |
| Global Trade Identification Number | 00808709051022 |
| Included Components | 55591401 |
| Item Dimensions | 2.5 x 1.7 x 0.9 inches |
| Item Type Name | SENSOR ASM-ENG COOL TEMP |
| Item Weight | 13.61 g |
| Manufacturer | ACDelco |
| Material Type | Metal alloy or durable plastic |
| Measurement Accuracy | High |
| Model | 55591401 |
| Mounting Type | Threaded Mount |
| Number of Items | 1 |
| Output Type | Digital |
| Part Number | 55591401 |
| Specific Uses For Product | Temperature |
| Style Name | Modern |
| UPC | 808709051022 |
| Unit Count | 1 Count |
| Upper Temperature Rating | 260 °F |
| Warranty Description | 12 Months / 12,000 Miles (Parts Only) |
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