Walker 235-91151 Engine Crankshaft Position Sensor

Engine Crankshaft Position Sensor Overview

Walker Products FSK 235-91151 is an engine crankshaft position sensor for select Nissan and INFINITI applications. It supports accurate crankshaft signal input for vehicles such as the Nissan Maxima, Murano, Altima, 350Z, Quest, Pathfinder, and INFINITI G35, I35, FX35, and M35.

Key Features

• Engine crankshaft position sensor for ignition and engine management systems
• Walker Products FSK line for application-specific coverage
• Built by Walker Products, a long-time supplier of fuel system and engine sensor components
• Manufactured to meet or exceed OEM standards and specifications
• ISO 9001/IATF16949 certified manufacturing and engineering support
• Part number 235-91151 for accurate ordering and fitment lookup

Product Details

Walker Products FSK 235-91151 is a crankshaft position sensor used to monitor crankshaft rotation and provide engine timing data to the control system. This part number is listed for 2002-2008 Nissan Maxima, 2003-2008 Nissan Murano, 2005-2006 Nissan Altima, 2003-2006 Nissan 350Z, 2004-2006 Nissan Quest, 2003-2004 Nissan Pathfinder, 2003-2007 INFINITI G35, 2002-2004 INFINITI I35, 2003-2008 INFINITI FX35, and 2006-2008 INFINITI M35. For buyers searching for a Nissan Maxima crankshaft position sensor or an INFINITI G35 crank sensor, 235-91151 provides a direct-fit replacement option within the listed applications.

Common Issues This Part Can Address

• Hard starting or extended crank time
• Intermittent stalling or engine shutdown
• Check engine light related to crankshaft signal faults
• Rough running caused by incorrect engine speed input
• No-start conditions tied to crankshaft position sensor failure

Installation Notes and Tips

Verify the vehicle year, make, model, and engine application against the fitment list before ordering. Compare the original sensor connector and mounting style to the replacement part number 235-91151, and inspect the harness and related engine management components during service. Clear diagnostic trouble codes after installation and confirm proper engine operation.

Quality Assurance

Walker Products has supplied automotive fuel system and engine sensor components since 1946 and backs its products with in-house manufacturing, product management, engineering, and technical support. The company states that its parts are produced to meet or exceed OEM standards and specifications.

Fitment

• Fits 2003-2008 INFINITI FX35, N/A
• Fits 2006-2008 INFINITI M35, N/A
• Fits 2002-2008 Nissan Maxima, N/A
• Fits 2003-2008 Nissan Murano, N/A
• Fits 2003-2007 INFINITI G35, N/A
• Fits 2003-2006 Nissan 350Z, N/A
• Fits 2005-2006 Nissan Altima, N/A
• Fits 2004-2006 Nissan Quest, N/A
• Fits 2002-2004 INFINITI I35, N/A
• Fits 2002-2004 Nissan Altima, N/A; Fits vehicles up to January 2004.
• Fits 2002-2004 Nissan Altima, N/A; 01/2004-on
• Fits 2003-2004 Nissan Pathfinder, N/A