Camshaft Position Sensor > CHEVROLET COLORADO / GMC CANYON 2.8L DIESEL (LWN Engine) > 12637869 > GENUINE PART (GM Original Equipment)
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Genuine OEM Engine Component (General Motors/Chevrolet Original Equipment, often supplied as ACDelco)
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Part Number: 12637869 (GM OE Number)
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Component Name: Camshaft Position Sensor (CMP Sensor)
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Primary Applications: Mid-Size Pickup Truck (Second Generation):
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Chevrolet Colorado (and GMC Canyon): Models equipped with the 2.8L 4-Cylinder Turbo Diesel (RPO Code LWN) engine.
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Model Years: Primarily applicable from 2016 through to later model years (2016–2022 in many catalogs). The 2014-2015 models typically used different engines (2.5L/3.6L).
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Engine Specificity: This sensor is distinctly linked to the 2.8L LWN Diesel engine. The gasoline engines (2.5L LCV, 3.6L LGZ) use different sensors.
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Position: Located on the engine cylinder head. Since the 2.8L LWN is a DOHC engine, it may require two of these sensors (Intake and Exhaust), and the part number is often universal for both positions.
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Key Function: Measures the rotational position and speed of the camshaft, providing critical data to the Engine Control Module (ECM) for precise timing of the fuel injection and other diesel engine operations.
This is a Genuine OEM Camshaft Position Sensor (CMP Sensor), identified by the General Motors (GM) part number 12637869. This component is a factory-original electrical sensor crucial for the precise operation of the 2.8L LWN Turbo Diesel engine found in the Chevrolet Colorado (and its twin, the GMC Canyon).
Important Application Note: While your request specified 2014–2017, the 2.8L Diesel engine (to which this sensor, 12637869, is specific) was typically introduced in the Colorado lineup starting in 2016. If your 2014 or 2015 Colorado has the standard 2.5L or 3.6L gasoline engine, this sensor is not compatible. You must confirm your vehicle is equipped with the 2.8L Diesel engine.
The sensor performs the following critical engine function:
Timing Synchronization: It monitors the camshafts' movement to ensure they are synchronized with the crankshaft, which is essential for the efficient and powerful operation of the diesel engine.
ECM Input: The signal from this sensor is used by the ECM to calculate injection timing and control the variable systems within the engine.
Using the Genuine Part (12637869) ensures:
Precise Signal Accuracy: The sensor is manufactured to strict GM specifications, which is vital for the sensitive control systems of a modern diesel engine.
Guaranteed Durability: Provides reliable performance despite the high heat and vibration common in diesel engine compartments.
Compatible Vehicle (Primary Applications - Check VIN for confirmation of 2.8L Diesel Engine):
Chevrolet Colorado (2.8L Diesel models, approx. 2016–2022)
GMC Canyon (2.8L Diesel models, approx. 2016–2022)
Chevrolet Express / GMC Savana (2.8L Diesel models, approx. 2017–2022)
Part Number:
✔ 12637869 (Camshaft Position Sensor - Genuine GM OE / ACDelco)
Part Type:
✔ Camshaft Position Sensor (CMP) (Genuine Part, 2.8L Diesel Specific)
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