Walker 235-91078 Engine Crankshaft Position Sensor

Walker Crankshaft Position Sensor 235-91078

Walker Products FSK 235-91078 is an engine crankshaft position sensor built for direct-fit service on a wide range of GM and Saturn applications. It uses a black housing, one male connector, and a single mounting hole for a straightforward replacement on supported vehicles.

Key Features

• Engine crankshaft position sensor for ignition and engine management service
• Black sensor body with 1 connector and 1 mounting hole
• Male connector design for the listed applications
• No mounting bracket included
• Walker Products FSK line for OE-style replacement coverage

Product Details

Walker Products has supplied fuel system and engine management components since 1946, with manufacturing and engineering support focused on meeting or exceeding OEM standards. The FSK product line is built for accurate vehicle application coverage and dependable sensor replacement. Part number 235-91078 is listed for applications including Chevrolet Trailblazer, GMC Envoy, Saturn Vue, and Chevrolet Cavalier, along with additional Buick, Pontiac, Oldsmobile, Isuzu, Saab, and Saturn models. This part cross-references Standard Ignition PC134 for the same application.

Fits 2002-2007 Chevrolet Trailblazer, N/A. Fits 2002-2007 GMC Envoy, N/A. Fits 2002-2007 Saturn Vue, N/A. Fits 1995-2005 Chevrolet Cavalier, N/A. Fits 1995-2005 Pontiac Grand Am, N/A. Fits 1995-2005 Pontiac Sunfire, N/A. Fits 1999-2004 Oldsmobile Alero, N/A. Fits 2003-2006 Saturn Ion, N/A.

What It Helps Address

• Crankshaft position sensor fault codes
• Hard starting or no-start conditions tied to crank signal loss
• Intermittent stalling or engine cut-out concerns
• Rough running caused by inaccurate crankshaft timing input
• Check engine light concerns related to crank sensor performance

Installation Notes and Tips

Verify connector style, mounting hole location, and application notes before installation. Some listed vehicles have specific fitment details, including the 2006 Chevrolet Malibu note for models with 2 blade terminals and the 1992-1994 applications that use an engine camshaft position sensor with a straight connector. Confirm the exact year, make, model, and engine configuration against the vehicle before replacing the sensor.

Quality Assurance

Walker Products is an ISO 9001/IATF 16949 certified manufacturer with in-house manufacturing, product management, and engineering support. The company states its engine sensors are produced to meet or exceed OEM standards and specifications.