Walker 235-91577 Engine Camshaft Position Sensor - Left

Walker Camshaft Position Sensor for Hyundai and Kia

Walker Products FSK 235-91577 is an engine camshaft position sensor for select Hyundai and Kia applications. It supports accurate camshaft signal input for engine management systems and is built to meet or exceed OEM standards and specifications.

Key Features

• Engine camshaft position sensor for ignition and engine management systems
• Walker Products FSK line for application-specific coverage
• Manufactured under ISO 9001/IATF16949 quality systems
• Backed by Walker engineering, product management, and technical support
• Fits select Hyundai Elantra, Kona, Veloster, Sonata, Tucson, Accent, Ioniq, Grand i10, and Kia Forte, Optima, Soul, Rio, Niro, Forte5, and Forte Koup applications

Product Details

Walker Products has supplied fuel system and engine sensor components since 1946, with a focus on OE-style fit and production accuracy. Part number 235-91577 is part of the Walker Products FSK line and is intended for vehicles that require a camshaft position sensor in the engine management circuit. This part number 235-91577 is listed for a wide range of Hyundai and Kia models, including 2017-2020 Hyundai Elantra, 2018-2020 Hyundai Kona, 2015-2028 Hyundai Sonata, and 2016-2019 Kia Optima applications, along with additional coverage for Hyundai Veloster, Accent, Ioniq, Tucson, and Kia Soul, Rio, Niro, Forte5, and Forte Koup.

This part cross-references no additional part numbers provided in the source data.

What It Helps Address

• Camshaft position sensor fault codes
• Hard starting or extended crank conditions related to cam signal loss
• Rough idle or unstable engine operation tied to timing input errors
• Intermittent stalling caused by inaccurate camshaft position feedback
• Check engine light concerns associated with cam sensor circuit faults

Installation Notes

Verify the exact year, make, model, engine configuration, and sensor location before ordering. Fitment includes both N/A and Left positions depending on application, and some listings include production-date or engine-head location notes. For example, the part fits 2017-2019 Hyundai Elantra, Left, and 2019 Kia Niro with a cylinder-head location note and production cutoff. Confirm the vehicle-specific notes in the fitment data before installation.

Quality Assurance

Walker Products manufactures engine sensors to meet or exceed OEM standards and specifications. The company is ISO 9001/IATF16949 certified and supports its parts with internal engineering, product management, and technical documentation for accurate application coverage.