Walker 235-1021 Engine Crankshaft Position Sensor

Walker 235-1021 Crankshaft Position Sensor

Walker Products 235-1021 is an engine crankshaft position sensor for GM and related applications that require a side-of-engine-block mounting style. It uses a black housing with one oval connector, two terminals, and a male connector with female terminals for a direct-fit style replacement.

Key Features

• Engine crankshaft position sensor for ignition and engine management systems
• Black sensor body with 1 oval connector
• 2-terminal design with male connector and female terminals
• No mounting bracket included
• Built by Walker Products, a long-time supplier of fuel system and engine sensor components
• Part number 235-1021 for catalog and cross-reference lookup

Product Details

Walker Products 235-1021 is part of the Walker Products engine sensor line, backed by the company’s manufacturing, engineering, and product support resources. Walker has supplied automotive fuel system and engine management components since 1946 and states that its products are manufactured to meet or exceed OEM standards and specifications. This crankshaft position sensor is listed for a wide range of vehicles, including Buick Century, Chevrolet Impala, Pontiac Grand Am, and Oldsmobile Alero applications with side-of-engine-block mounting notes where specified.

This part cross-references Standard Ignition PC7 and Delphi SS10089 for the same application.

Common Symptoms This Sensor Can Address

• Crank/no-start conditions caused by a failed crankshaft position sensor
• Intermittent stalling or sudden engine shutdown
• Rough running or misfire concerns tied to crank signal loss
• Check engine light related to crankshaft position sensor faults
• Hard starting after heat soak or extended driving

Installation Notes

Verify the connector style, terminal count, and mounting location before installation. This application uses a side-of-engine-block mounting style on many listed vehicles, and some fitments include notes such as sensor only, w/o lead wire, or located in block. Confirm the exact vehicle year, make, model, and engine configuration against the fitment data before ordering.

Compatible With 1986-2005 Buick Century, 1988-1992 Buick Regal, 1995-2005 Chevrolet Impala, 1995-2005 Pontiac Grand Am, and other listed GM, Isuzu, Honda, and Cadillac applications. Additional listed coverage includes Chevrolet Malibu, Pontiac Grand Prix, Oldsmobile Cutlass, and Chevrolet Lumina models across the 1986-2005 range.

Quality Assurance

Walker Products is an ISO 9001/IATF16949 certified company and supports its engine sensor products with in-house manufacturing, engineering, product management, and technical documentation resources. The 235-1021 is produced to align with OEM-level specifications for the listed applications.