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Crankshaft Position Sensor (CKP) > MAZDA MPV / MAZDA 8 2.3L L3-VE GASOLINE ENGINE > FSD7-18-221B | GENUINE PART (Mazda Original Equipment)

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FSD7 18 221B
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  • Genuine OEM Engine Component (Mazda Original Equipment).

  • Part Number: FSD7-18-221B (Official Mazda OE Number).

    • Supersedes/Interchangeable OE: This part is an update to FSD7-18-221A and FSD7-18-221.

    • Ford Cross-Reference: Often cross-referenced with equivalent Ford Duratec engine parts (e.g., L3G2-18-221, depending on the exact engine code).

  • Component Name: Crankshaft Position Sensor (CKP Sensor).

  • Primary Applications (Engine Specific): This sensor is crucial for Mazda's large MPV models equipped with the 2.3L MZR (L3-VE) Gasoline engine (related to the Ford Duratec family):

    • Mazda MPV / Mazda 8 (LY Chassis): Fits 2.3L models (approx. 2006–2016). Confirms your Mazda 8 2006–2015.

    • Mazda 3 / Mazda 6 / CX-7: Also fits various models utilizing the naturally aspirated or turbocharged 2.3L MZR (L3) engine variants.

  • Key Function: Provides the Engine Control Module (ECM) with the primary timing reference for the engine, controlling ignition timing, sequential fuel injection, and Variable Valve Timing (VVT).

MYR 270.00
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This is a Genuine OEM Crankshaft Position Sensor (CKP Sensor), identified by the Mazda part number FSD7-18-221B. This sensor is a factory-original component designed for the large Mazda MPV/Mazda 8 equipped with the reliable 2.3L MZR (L3-VE) Gasoline engine.

The CKP sensor is vital for modern engine control systems:

Engine Timing Foundation: The sensor monitors the rotation of the crankshaft to provide the ECM with the fundamental data for engine timing, including engine speed (RPM) and precise piston position (Top Dead Center).

 
VVT Control: In MZR engines, this signal is essential for the ECM to calculate and adjust the precise activation of the Variable Valve Timing (VVT) mechanism, which optimizes power and efficiency.
Genuine Quality: Given the importance of accurate timing data for these technologically advanced engines, using the Genuine Mazda Part ensures signal integrity and long-term reliability.
Fitment Assurance: The part number FSD7-18-221B is consistently verified as the correct genuine CKP sensor for the Mazda 8 2.3L MZR Gasoline engine for the model years you listed.

 
Compatible Vehicle (Primary Applications - Check VIN for confirmation of 2.3L L3-VE Engine):

Mazda MPV / Mazda 8 (LY) 2.3L Gasoline (2006–2016)
Mazda 6 / CX-7 2.3L variants
 
Part Number:

✔ FSD7-18-221B (Crankshaft Position Sensor - Genuine Mazda OE)
Supersedes: FSD7-18-221A
 
Part Type:

✔ Crankshaft Position Sensor (CKP) (Genuine Part, 2.3L MZR Gasoline Specific)

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