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🌡️ Stay cool, drive smarter — GM precision you can trust!
The GM Genuine Parts 55591401 Engine Coolant Temperature Sensor is a high-accuracy, OEM-spec digital sensor designed to monitor engine temperature precisely. Manufactured to GM’s original equipment standards, it ensures perfect fit, form, and function while undergoing rigorous testing for durability. Compact and lightweight, it supports optimal engine performance by enabling precise air/fuel and ignition adjustments, backed by a 12-month/12,000-mile warranty.





| ASIN | B00S0FHETW |
| Best Sellers Rank | #51,766 in Automotive ( See Top 100 in Automotive ) #34 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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