Motocraft Replacement Component (Motocraft is the official aftermarket parts brand of Ford Motor Company, often supplying OE-quality parts).
Original Equipment (OE) Part Number Replaced: BM51-6C-315BB (This is the OE number the part is designed to fit).
Interchangeable OE: Also widely cross-referenced with BM51-6C-315BA and 1841315.
Component Name: Crankshaft Position Sensor (CKP Sensor).
Primary Applications (Engine Specific): This sensor is crucial for Ford vehicles equipped with the highly common and sensitive 1.0L EcoBoost GTDi (Gasoline Turbocharged Direct Injection) engine:
Ford Fiesta: Fits 1.0L EcoBoost models (approx. 2012–Present). Confirms your Fiesta 1.0cc.
Ford Focus (MK3/MK4): Fits 1.0L EcoBoost models.
Ford B-Max / Ecosport / Mondeo: Fits all models utilizing the 1.0L EcoBoost engine variants (100 PS, 125 PS, 140 PS).
Key Function: Provides the Engine Control Module (ECM) with the primary timing reference for the engine, crucial for controlling precise ignition timing and sequential fuel injection in this turbocharged, direct-injection engine.
This is a Motocraft Crankshaft Position Sensor (CKP Sensor), identified by the Ford/Motocraft part number BM51-6C-315BB-MC. Motocraft is the designated official parts brand for Ford's aftermarket service, meaning this part meets high-quality standards comparable to the original equipment (OE) part, even though it may not carry the 'Genuine Ford OE' designation.
This sensor is specifically designed for the highly sensitive 1.0L EcoBoost engine, known for its compact size and advanced technology:
High-Precision Timing: The 1.0L EcoBoost engine relies heavily on accurate crank position data for its complex Variable Valve Timing (VVT) and precise direct injection timing. The sensor's signal quality is critical for maximizing performance and fuel economy while preventing misfires.
Engine Start and Diagnostics: A faulty CKP sensor is a common cause of engine stalling, hard starting, or the Engine Check Light illuminating with codes like P0335.
Motocraft Quality: Choosing a Motocraft part ensures you are installing a high-quality replacement that meets Ford's engineering specifications, unlike generic third-party aftermarket components.
Fitment Assurance: The OE number BM51-6C-315BB is correctly identified for the 1.0L EcoBoost Gasoline engine in the Ford Fiesta and related models.
Compatible Vehicle (Primary Applications - Check VIN for confirmation of 1.0L EcoBoost Engine):
Ford Fiesta 1.0L EcoBoost (2012–Present)
Ford Focus (MK3/MK4) 1.0L EcoBoost
Ford B-Max / Ecosport 1.0L EcoBoost
Part Number:
Motocraft Part Number: BM51-6C-315BB-MC
Original Equipment (OE) Number Replaced: BM51-6C-315BB
Part Type:
✔ Crankshaft Position Sensor (CKP) (Motocraft Replacement, 1.0L EcoBoost Gasoline Specific)
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