Walker 235-1646 Engine Camshaft Position Sensor

Walker 235-1646 Camshaft Position Sensor

Walker Products 235-1646 is an engine camshaft position sensor built for precise signal input to the engine management system. It is a direct-fit replacement for select Cadillac applications, including Cadillac STS, SRX, and XLR models from 2006-2010.

Walker Products has supplied fuel system and engine sensor components since 1946, with manufacturing and engineering support focused on meeting or exceeding OEM standards. The Walker Products line includes engine management parts such as cam and crankshaft sensors, throttle position sensors, oxygen sensors, and fuel injectors.

Key Features

• Engine camshaft position sensor for select Cadillac applications
• Walker Products part number 235-1646
• Built to support accurate camshaft signal reporting to the engine control system
• OE-style replacement for 2006-2010 Cadillac STS, SRX, and XLR fitments
• Backed by Walker Products engineering, product management, and technical support
• Cross-reference part numbers include Standard Ignition PC718 and Spectra Premium S10448

Fitment Details

• Fits 2007-2010 Cadillac STS, N/A
• Fits 2007-2009 Cadillac SRX, N/A
• Fits 2006-2009 Cadillac XLR, N/A
• Fits 2006 Cadillac STS, N/A, 2nd Design Mass Air Flow Sensor
• Fits 2006 Cadillac STS, N/A, 1st Design Mass Air Flow Sensor

What This Sensor Helps Address

• Camshaft position signal faults
• Check engine light concerns related to cam sensor performance
• Hard starting caused by incorrect camshaft timing input
• Rough idle or drivability issues tied to sensor signal loss
• Engine control synchronization problems on Cadillac STS, SRX, and XLR models

Installation Notes

Verify the year, model, and design note before ordering, especially for 2006 Cadillac STS applications with first- or second-design mass air flow sensor requirements. Confirm connector style and sensor location against the original part before installation. Use the vehicle service information for proper diagnostic and replacement procedures.

Quality Assurance

Walker Products manufactures engine sensors to meet or exceed OEM standards and specifications. The company is ISO 9001 and IATF 16949 certified, with in-house manufacturing and engineering support used to maintain product accuracy and application coverage.